Fluctuation loss is an effect seen in radar systems as the target object moves or changes its orientation relative to the radar system. It was extensively studied during the 1950s by Peter Swerling, who introduced the Swerling models to allow the effect to be simulated. For this reason, it is sometimes known as Swerling loss or similar names. The effect occurs when the target's physical size is within a key range of values relative to the wavelength of the radar signal. As the signal reflects off various parts of the target, they may interfere as they return to the radar receiver. At any single distance from the station, this will cause the signal to be amplified or diminished compared to the baseline signal one calculates from the radar equation. As the target moves, these patterns change. This causes the signal to fluctuate in strength and may cause it to disappear entirely at certain times. The effect can be reduced or eliminated by operating on more than one frequency or using modulation techniques like pulse compression that change the frequency over the period of a pulse. In these cases, it is unlikely that the pattern of reflections from the target causes the same destructive interference at two different frequencies. Swerling modeled these effects in a famous 1954 paper introduced while working at RAND Corporation. Swerling's models considered the contribution of multiple small reflectors, or many small reflectors and a single large one. This offered the ability to model real-world objects like aircraft to understand the expected fluctuation loss effects. (Wikipedia).
Physics 9.6 Coefficient of Restitution (4 of 9) Coefficient of Restitution: Graphed
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain a graph of the height of a falling object at 16ft vs the coefficient of restitution and the square of the coefficient of restitution. Next video in this series can be seen at: https://youtu.b
From playlist PHYSICS 9.6 MOMENTUM AND COEFFICIENT OF RESTITUTION
Learn how to find and classify the discontinuity of the function
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From playlist Holes and Asymptotes of Rational Functions
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From playlist Inertia
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From playlist Find the Asymptotes of Rational Functions
How Can I Gain Pounds During The Day And Lose Them At Night?
What causes me to gain two or three pounds during the day and then lose two or three pounds while I sleep at night? The main thing that's changing overnight is the amount of water in your system. Learn more about daily weight fluctuation in this episode of BrainStuff. Whether the topic i
From playlist Stuff About Being Human
Determine the discontinuity of the function
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From playlist Holes and Asymptotes of Rational Functions
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Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is and the equation of the coefficient of restitution. Next video in this series can be seen at: https://youtu.be/9kFAVfUHPZ8
From playlist THE "WHAT IS" PLAYLIST
Many objects float in water due to buoyancy. What happens to the buoyant force when you mix air and water? Watch this video to find out!
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Watch the rest of the lectures on http://www.cosmolearning.com/courses/overview-of-gravitational-wave-science-400/ Redistributed with permission. This video is taken from a 2002 Caltech on-line course on "Gravitational Waves", organized and designed by Kip S. Thorne, Mihai Bondarescu and
From playlist Caltech: Gravitational Waves with Kip Thorne - CosmoLearning.com Physics
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PROGRAM NON-HERMITIAN PHYSICS (ONLINE) ORGANIZERS: Manas Kulkarni (ICTS, India) and Bhabani Prasad Mandal (Banaras Hindu University, India) DATE: 22 March 2021 to 26 March 2021 VENUE: Online Non-Hermitian Systems / Open Quantum Systems are not only of fundamental interest in physics a
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Lec 21b - Phys 237: Gravitational Waves with Kip Thorne
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From playlist Walter Burke Institute for Theoretical Physics - Dedication and Inaugural Symposium - Feb. 23-24, 2015
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For more information about Stanford's Artificial Intelligence professional and graduate programs visit: https://stanford.io/ai To follow along with the course, visit: https://web.stanford.edu/class/stats214/ To view all online courses and programs offered by Stanford, visit: http://onli
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From playlist AMMI Geometric Deep Learning Course - Second Edition (2022)
Label the discontinuity of a rational functions with coefficients
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