Category Archives: & SIGNAL PROCESSING

Detecting Quiet Diesel Electric Submarines

This is an article worth reading. You can also learn more by attending ATI’s sonar and acoustics courses.

http://www.aticourses.com/schedule.htm#acoustic

http://www.strategypage.com/htmw/htsub/articles/20130626.aspx

This is a quote from the summary.

There are 39 nations operating a total of 400 diesel electric subs. Only three of these nations (China, Iran, North Korea) are likely to use their subs against the U.S. or its allies. China has fifty of these boats, Iran has three (plus 25 much smaller mini-subs) and North Korea has 20 (plus 50 much smaller mini-subs). So the U.S. has to worry about 73 diesel electric subs and 75 mini-subs. But about half the full size subs are elderly, obsolete, and noisy. The same can be said for at least half the mini-subs. That leaves about 36 full size subs and 40 mini-subs that are a clear threat (though the older stuff can be a threat if you get sloppy). That’s a lot of subs, and they make the East Asian coast and the Persian Gulf dangerous places for American warships.

Moreover, the North Korean and Iranian fleets (and governments) are in decline, while China is pouring more cash into their armed forces. If there’s any diesel-electric boats the U.S. Navy has to be extremely concerned about, it’s the Chinese. While China continues to try and develop world class nuclear subs, they are also moving ahead in creating world class diesel electric boats.

 

 

 

Do You Know Radar? We KNOW Radar!

ATI Offers both Fundamental and Advanced Radar Short Courses

Video Clip: Click to Watch

The modern uses of radar are highly diverse, including air traffic control, radar astronomy, air-defense systems, antimissile systems; nautical radars to locate landmarks and other ships; aircraft anti-collision systems; ocean-surveillance systems, outer-space surveillance and rendezvous systems; meteorological precipitation monitoring; altimetry and flight-control systems; guided-missile target-locating systems; and ground-penetrating radar geological observations
From phased array radar, to an airborne radar altimeter, to space tracking radar, to space-based radar, newer capabilities are being continuously pursued in our fast-moving field.

Have you keep up with developments in improved signal processing or how the versatility of the phased array antenna has made such an impact?

Are you aware of the latest advances in the following radar technologies:

• Radar data processing?

• Auto-detection?

• Improved auto-tracking?

• Ground Target Moving Indictor (GMTI) radars?

If not, we can help. The Applied Technology Institute (ATI) provides leading-edge public courses and onsite technical training to DoD and NASA personnel, as well as contractors. We are not a one-size-fits-all educational facility.

You or your team must face the challenges of tomorrow with an arsenal of proven methods and tools that you know or learn today. Whether you are a busy radar engineer, a technical subject matter expert or a project manager, by taking one of our short classes, you can enhance your understanding of complex radar systems in a little amount of time. You will also become aware of the technical vocabulary essential to interact meaningfully with your colleagues.

You want to keep current, but how?

How many of the following situations apply to you?

• Don’t have time for a full semester course

• The “nearby campus” all the way across town

• Your educational needs are “Advanced Topics in Digital Signal Processing”, not”Introduction to Business”

• You count decibels (dBs) more often than dollars ($)

• The sonar equation more familiar to you than one for amortized interest rates?

• You speak radar, not legalese

• You think satellites are sexy and not Lady Gaga

If one or more of situations apply to you or you are just in need of more technical training, then boost your career with the knowledge needed to provide better, faster, and cheaper solutions for sophisticated DoD and NASA radar systems.

Why not take a short course instead? ATI short courses are less than a week long and are designed to help you keep your professional knowledge up-to-date. Our courses provide a practical overview of space and defense technologies which provide a strong foundation for understanding the issues that must be confronted in the use, regulation and development of complex systems.

Course Outline, Samplers, and Notes

The radar short courses below are designed for individuals involved in planning, designing, building, and operating space and defense radar systems.

FUNDAMENTAL RADAR SHORT COURSES

These courses cover the basics of radar, taught in a manner for true understanding of the fundamentals, even for the complete newcomer. Also covered are electromagnetic waves, frequency bands, the natural phenomena of scattering and propagation, radar performance calculations and other tools used in radar work, and a “walk through” the four principal subsystems – the transmitter, the antenna, the receiver and signal processor.

If you are new to the radar scene, take one of our fundamentals courses from the list below:

Radar 101 – Fundamentals of Radar (One day course for non-specialists)

Fundamentals of Radar Technology

Advances in Modern Radar (supplement to Radar 101)

ATI’s Fundamentals of Airborne Radar

ADVANCED RADAR SHORT COURSES

If you are a radar veteran and see the radar equation in your sleep, then you might want to take one of our more advanced courses. Diverse issues such as transmitter stability, antenna pattern, clutter, jamming, propagation, target cross section, dynamic range, receiver noise, receiver architecture, waveforms, processing, synthetic aperture radar (SAR), target detection are treated in detail within the unifying context of the radar range equation.

The advanced courses below are designed for those who have already taken a basic radar class and/or have working experience with radar systems: 

Advanced Developments in Radar

Radar and Electronic WarfareTest

Radar Systems Analysis & Design using MATLAB Radar Signal Analysis and Processing using MATLAB

OTHER RADAR SHORT COURSES

Below are a still few more short courses for the truly hardcore radar guru:

Phased Array Radar

Propagation Effects for Radar & Communications Systems

Radar Systems Design & Engineering course

Determine for yourself the value of our courses before you sign up. See our samples (See Slide Samples) on some of our courses.

Or check out the new ATI channel on YouTube.

After attending the course you will receive a full set of detailed notes from the class for future reference, as well as a certificate of completion. Please visit our website for more valuable information.




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ATI Releases New Radar Systems Analysis & Design Using MATLAB Technical Training Short Course Sampler

On March 15, 2011 ATI released new Radar Systems Analysis & Design Using MATLAB technical training short course sampler.

    This course provides a comprehensive description of radar systems analyses and design. A design case study is introduced and as the material coverage progresses throughout the course, and new theory is presented, requirements for this design case study are changed and / or updated, and the design level of complexity is also increased. This design process is supported with a comprehensive set of MATLAB-7 code developed for this purpose. By the end, a comprehensive design case study is accomplished. This will serve as a valuable tool to radar engineers in helping them understand radar systems design process. Each student will receive the instructor’s textbook MATLAB Simulations for Radar Systems Design as well as course notes.
    The course is scheduled to be presented on May 2-5, 2011 in Columbia, MD.  Register here.

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      ATI Releases new Radar Signal Analysis and Processing using MATLAB Technical Training Short Course Sampler

      On March 16, 2011 ATI released new Radar Signal Analysis and Processing using MATLAB technical training short course sampler.

        This three-day course develops the technical background needed to predict and understand the factors controlling the performance of radar systems including anti-clutter and anti-jamming signal processing techniques.The course introduces the fundamental concepts and properties of various techniques without the necessity of a detailed analytic background.

        The course is scheduled to be presented on July 13-15, 2011 in Laurel, MD.  Register here.


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      ATI releases Hyperspectral & Multispectral course sampler video

      On March 11, 2011  ATI released a new sampler video for Hyperspectral & Multispectral Imaging course.  This three-day class is designed for engineers, scientists and other remote sensing professionals who wish to become familiar with multispectral and hyperspectral remote sensing technology. Students in this course will learn the basic physics of spectroscopy, the types of spectral sensors currently used by government and industry, and the types of data processing used for various applications. Case studies of applications will be used throughout the course. After taking this course, students should be able to communicate and work productively with other professionals in this field. Each student will receive a complete set of notes and the textbook, Remote Sensing of the Environment, an Earth Resource Perspective.


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      ATI’s Short Course on Wavelets: A Conceptual Practical Approach

      Video Clip: Click to Watch

      Wavelets can be used to identify the time, the frequency, and the shape of a transient signal 

      Fast Fourier Transforms (FFT) are in wide use and work very well if your signal stays at a constant frequency (“stationary”). But if the signal could vary, have pulses, “blips” or any other kind of interesting behavior then you need Wavelets. Wavelets are remarkable tools that can stretch and move like an amoeba to find the hidden “events” and then simultaneously give you their location, frequency, and shape. Wavelet Transforms allow this and many other capabilities not possible with conventional methods like the FFT

      In this class you will learn how Wavelets can be used to identify the time, the frequency, and the shape of a transient signal (radar pulse, heartbeat, stock market tic, image edge detection in baggage, etc,) and do all 3 simultaneously! For example, in the figure above (a 3-D wavelet transform of a chirp signal), the horizontal axis indicates time, the vertical axis indicates frequency, and the colors indicate magnitude (at that particular time and frequency)

      This course is vastly different from traditional math-oriented Wavelet courses or books in that we use examples, figures, and computer demonstrations to show how to understand and work with Wavelets. This is a comprehensive, in-depth, up-to-date treatment of the subject, but from an intuitive, conceptual point of view. 

      We do look at a few key equations from the traditional literature but only AFTER the concepts are demonstrated and understood. If desired, further study from scholarly texts and papers is then made much easier and more palatable when you already understand the fundamental equations and how they relate to the real world. Each student will receive extensive course slides, a CD with MATLAB demonstrations, and a copy of the instructor’s new book, Conceptual Wavelets. 

      What you will learn: 

      • How to use Wavelets as a “microscope” to analyze data that changes over time or has hidden “events” that would not show up on an FFT. 

      • How to understand and efficiently use the three types of Wavelet Transforms to better analyze and process your data using state-of-the-art methods and applications. 

      • How to compress and de-noise data using advanced Wavelet techniques. How to avoid potential pitfalls by understanding the concepts. A “safe” method if in doubt. 

      • How to increase productivity and reduce cost by choosing (or building) a Wavelet that best matches your particular application. 

      Course Outline, Samplers, and Notes 

      1. What is a Wavelet? Examples and Uses. “Waves” that can start, stop, move and stretch. Real-world applications in many fields: Signal and Image Processing, Internet Traffic, Airport Security, Medicine, JPEG, Finance, Pulse and Target Recognition, Radar, Sonar, etc. 

      2. Comparison with traditional methods. The concept of the FFT, the STFT, and Wavelets as all being various types of comparisons with the data. Strengths, weaknesses, optimal choices. 

      3. The Continuous Wavelet Transform (CWT). Stretching and shifting the Wavelet for optimal correlation. Predefined vs. Constructed Wavelets. 

      4. The Discrete Wavelet Transform (DWT). Shrinking the signal by factors of 2 through downsampling. Understanding the DWT in terms of correlations with the data. Relating the DWT to the CWT. Demonstrations and uses. 

      5. The Redundant Discrete Wavelet Transform (RDWT). Stretching the Wavelet by factors of 2 without downsampling. Tradeoffs between the alias-free processing and the extra storage and computational burdens. A hybrid process using both the DWT and the RDWT. Demonstrations and uses. 

      6. “Perfect Reconstruction Filters”. How to cancel the effects of aliasing. How to recognize and avoid any traps. A breakthrough method to see the filters as basic Wavelets. The “magic” of alias cancellation demonstrated in both the time and frequency domains. 

      7. Highly useful properties of popular Wavelets. How to choose the best Wavelet for your application. When to create your own and when to stay with proven favorites. 

      8. Compression and De-Noising using Wavelets. How to remove unwanted or non-critical data without throwing away the alias cancellation capability. A new, powerful method to extract signals from large amounts of noise. Demonstrations. 

      9. Additional Methods and Applications. Image Processing. Detecting Discontinuities, Self-Similarities and Transitory Events. Speech Processing. Human Vision. Audio and Video. BPSK/QPSK Signals. Wavelet Packet Analysis. Matched Filtering. How to read and use the various Wavelet Displays. Demonstrations. 

      10. Further Resources. The very best of Wavelet references. 

      Determine for yourself the value of this course before you sign up. 

      See Slide Samples of our Wavelets: A Conceptual Practical Approach 

      After attending the course you will receive a full set of detailed notes from the class for future reference, as well as a certificate of completion. Please visit our website for more valuable information. 

      Comments from participants: 

      “Your Wavelets course was very helpful in our Radar studies. We often use wavelets now instead of the Fourier Transform for precision de-noising.” 

      –Long To, NAWC WD, Point Wugu, CA 

      “I was looking forward to this course and it was very rewarding–Your clear explanations starting with the big picture immediately contextualized the material allowing us to drill a little deeper with a fuller understanding” 

      –Steve Van Albert, Walter Reed Army Institute of Research 

      “Good overview of key wavelet concepts and literature. The course provided a good physical understanding of wavelet transforms and applications.” 

      –Stanley Radzevicius, ENSCO, Inc. 

      The Instructor 

      Dr. Lee Fugal is the Founder and President of an independent consulting firm. He has over 30 years of industry experience in Digital Signal Processing (including Wavelets) and Satellite Communications. 

      He has been a full-time consultant on numerous assignments since 1991. Recent projects include Excision of Chirp Jammer Signals using Wavelets, design of Space-Based Geolocation Systems (GPS & Non-GPS), and Advanced Pulse Detection using Wavelet Technology. 

      He has taught upper-division University courses in DSP and in Satellites as well as Wavelet short courses and seminars for Practicing Engineers and Management. He holds a Masters in Applied Physics (DSP) from the University of Utah, is a Senior Member of IEEE, and a recipient of the IEEE Third Millennium Medal. 

      About ATI 

      Since 1984, the Applied Technology Institute (ATI) has provided leading-edge public courses and onsite technical training to DoD and NASA personnel, as well as contractors. 

      Our mission here at ATI is to provide expert training and the highest quality professional development in space, communications, defense, sonar, radar, and signal processing. We are not a one-size-fits-all educational facility. 

      Our short classes include both introductory and advanced courses. ATI’s instructors are world-class experts who are the best in the business. They are carefully selected for their ability to clearly explain advanced technology. 

      Times, Dates, and Locations 

      Wavelets: A Conceptual Practical Approach 

      Feb 22-24, 2011 San Diego, CA 

      Jun 7-9, 2011 Beltsville, MD 

      Sincerely, 

      The ATI Courses Team 

      P.S Call today for registration at 410-956-8805 or 888-501-2100 or access our website at www.ATIcourses.com. For general questions please email us at ATI@ATIcourses.com. 

      ATI Features World Class Instructors for Our Short Courses

      Washington, DC
      Tuesday, November 30, 2010
      “Even I Could Learn a Thing or Two from ATI”
      “Even I Could Learn a Thing or Two from ATI”
      Video Clip: Click to Watch
      Since 1984 ATI has provided leading-edge public courses

      and onsite technical training

      The short technical courses from the Applied Technology Institute (ATI) are designed to help you keep your professional knowledge up-to-date. Our courses provide a practical overview of space and defense technologies which provide a strong foundation for understanding the issues that must be confronted in the use, regulation and development such complex systems.

      The classes are designed for individuals involved in planning, designing, building, launching, and operating space and defense systems. Whether you are a busy engineer, a technical expert or a project manager, you can enhance your understanding of complex systems in a short time.

      ABOUT ATI AND THE INSTRUCTORS

      Our mission here at the ATI is to provide expert training and the highest quality professional development in space, communications, defense, sonar, radar, and signal processing. We are not a one-size-fits-all educational facility. Our short classes include both introductory and advanced courses.

      ATI’s instructors are world-class experts who are the best in the business. They are carefully selected for their ability to clearly explain advanced technology.

      For example:

      Robert Fry worked from 1979 to 2007 at The Johns Hopkins University Applied Physics Laboratory where he was a member of the Principal Professional Staff. He is now working at System Engineering Group (SEG) where he is Corporate Senior Staff and also serves as the company-wide technical advisor. Throughout his career he has been involved in the development of new combat weapon system concepts, development of system requirements, and balancing allocations within the fire control loop between sensing and weapon kinematic capabilities. He has worked on many aspects of the AEGIS combat system including AAW, BMD, AN/SPY-1, and multi-mission requirements development. Missile system development experience includes SM-2, SM-3, SM-6, Patriot, THAAD, HARPOON, AMRAAM, TOMAHAWK, and other missile systems.

      Robert teaches ATI’s Combat Systems Engineering course

      Wayne Tustin has been president of Equipment Reliability Institute (ERI), a specialized engineering school and consultancy he founded in Santa Barbara, CA, since 1995. His BSEE degree is from the University of Washington, Seattle. He is a licensed Professional Engineer in the State of California. Wayne’s first encounter with vibration was at Boeing/Seattle, performing what later came to be called modal tests, on the XB-52 prototype of that highly reliable platform. Subsequently he headed field service and technical training for a manufacturer of electrodynamic shakers, before establishing another specialized school on which he left his name.

      Based on over 50 years of professional experience, Wayne has written several books and literally hundreds of articles dealing with practical aspects of vibration and shock measurement and testing.

      Wayne teaches ATI’s Fundamentals of Random Vibration & Shock Testing course.

      Thomas S. Logsdon, M.S

      For more than 30 years, Thomas S. Logsdon, M. S., has worked on the Navstar GPS and other related technologies at the Naval Ordinance Laboratory, McDonnell Douglas, Lockheed Martin, Boeing Aerospace, and Rockwell International. His research projects and consulting assignments have included the Transit Navigation Satellites, The Tartar and Talos shipboard missiles, and the Navstar GPS. In addition, he has helped put astronauts on the moon and guide their colleagues on rendezvous missions headed toward the Skylab capsule. Some of his more challenging assignments have centered around constellation coverage studies, GPS performance enhancement, military applications, spacecraft survivability, differential navigation, booster rocket guidance using the GPS signals and shipboard attitude determination.

      Tom Logsdon has taught short courses and lectured in thirty one different countries. He has written and published forty technical papers and journal articles, a dozen of which have dealt with military and civilian radionavigation techniques. He is also the author of twenty nine technical books on various engineering and scientific subjects. These include Understanding the Navstar, Orbital Mechanics: Theory and Applications, Mobile Communication Satellites, and The Navstar Global Positioning System.

      Courses Mr. Logsdon teaches through ATI include:

      Understanding Space

      Fundamentals of Orbital & Launch Mechanics

      GPS Technology – Solutions for Earth & Space and

      Strapdown Inertial Navigation Systems

      COURSE OUTLINE, SAMPLERS, AND NOTES

      Determine for yourself the value of our courses before you sign up. See our samples (See Slide Samples) on some of our courses.

      Or check out the new ATI channel on YouTube.

      After attending the course you will receive a full set of detailed notes from the class for future reference, as well as a certificate of completion. Please visit our website for more valuable information.

      DATES, TIMES AND LOCATIONS

      For the dates and locations of all of our short courses, please access the links below.

      Sincerely,

      The ATI Courses Team

      P.S. Call today for registration at 410-956-8805 or 888-501-2100 or access our website at www.ATIcourses.com. For general questions please email us at ATI@ATIcourses.com.

      Mark N. Lewellen
      Consultant/Instructor
      Washington, DC
      240-882-1234

      Why Not Give Yourself the Gift of a Short Course this Holiday Season?

      Washington, DC
      Monday, November 29, 2010
      Is One of These Yours?
      Is One of These Yours?
      Video Clip: Click to Watch
      When Did You Last do Something for Your Career?

      Since 1984, the Applied Technology Institute (ATI) has provided leading-edge public courses and onsite technical training to DoD and NASA personnel, as well as contractors. Our courses provide a practical overview of space and defense technologies which provide a strong foundation for understanding the issues that must be confronted in the use, regulation and development such complex systems.

      ATI short courses are designed to help you keep your professional knowledge up-to-date.

      Our short courses are designed for individuals involved in planning, designing, building, launching, and operating space and defense systems.

      Whether you are a busy engineer, a technical expert or a project manager, you can enhance your understanding of complex systems in a short time. You will become aware of the basic vocabulary essential to interact meaningfully with your colleagues.

      Course Outline, Samplers, and Notes

      Determine for yourself the value of our courses before you sign up. See our samples (See Slide Samples) on some of our courses.

      Or check out the new ATI channel on YouTube.

      After attending the course you will receive a full set of detailed notes from the class for future reference, as well as a certificate of completion. Please visit our website for more valuable information.

      About ATI and the Instructors

      Our mission here at the Applied Technology Institute (ATI) is to provide expert training and the highest quality professional development in space, communications, defense, sonar, radar, and signal processing. We are not a one-size-fits-all educational facility. Our short classes include both introductory and advanced courses.

      ATI’s instructors are world-class experts who are the best in the business. They are carefully selected for their ability to clearly explain advanced technology.

      Dates, Times and Locations

      For the dates and locations of all of our short courses, please access the links below.

      Sincerely,

      The ATI Courses Team

      P.S Call today for registration at 410-956-8805 or 888-501-2100 or access our website at www.ATIcourses.com. For general questions please email us at ATI@ATIcourses.com.

      Mark N. Lewellen
      Consultant/Instructor
      Washington, DC
      240-882-1234

      ATI Introduces Hyperspectral and Multispectral Imaging Techical White Papers by Dr. Richard Gomez

      Dr. Gomez is the presenter of ATI’s Hyperspectral and Multispectral Imaging course scheduled to be presented on March 9-11, 2010 in Beltsville, MD.

      This three-day class is designed for engineers, scientists and other remote sensing professionals who wish to become familiar with multispectral and hyperspectral remote sensing technology. Students in this course will learn the basic physics of spectroscopy, the types of spectral sensors currently used by government and industry, and the types of data processing used for various applications. Lectures will beenhanced by computer demonstrations. After taking this course, students should be able to communicate and work productively with other professionals in this field. Each student will receive a complete set of notes and the textbook, Remote Sensing: The Image Chain Approach.

      View course sampler

      Dr. Richard Gomez is a Research Professor at George Mason University (GMU) and Principal Research Scientist at the Center for Earth Observing and Space Research (CEOSR). At GMU he teaches and is actively involved in the scientific and technology fields of hyperspectral imaging and high resolution remote sensing. He has also served in industry and government (Texas Instruments and USACE). Dr. Gomez is internationally recognized as a leader and expert in the field of spectral remote sensing (multispectral, hyperspectral and ultraspectral) and has published extensively in scientific journals. He has organized and chaired national and international conferences, symposia and workshops. He earned his doctoral degree in physics from New Mexico State University. He also holds an M.S. and a B.S. in physics. Dr. Gomez currently serves as Director for the ASPRS Potomac Region and as Remote Sensing Chair for the IEEE-USA Committee on Transportation and Aerospace Technology Policy.