Radar Signal Processing

Radar Signal Processing

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 42. Chapters: Digital signal processing, Doppler effect, Signal-to-noise ratio, Noise figure, Heterodyne, Coherence, Pulse-Doppler radar, Radar signal characteristics, Radar tracker, Matched filter, Pulse compression, Johnson-Nyquist noise, Chirplet transform, Photoacoustic Doppler effect, Automatic gain control, Cross-correlation, Electronic counter-countermeasures, Moving target indication, Anomalous propagation, Constant false alarm rate, K-distribution, Amplitude-Comparison Monopulse, Space-time adaptive processing, Track-before-detect, Stationary target indication, Joint Probabilistic Data Association Filter, Sensitivity Time Control. Excerpt: The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842 in Prague, is the change in frequency of a wave for an observer moving relative to the source of the wave. It is commonly heard when a vehicle sounding a siren or horn approaches, passes, and recedes from an observer. The received frequency is higher (compared to the emitted frequency) during the approach, it is identical at the instant of passing by, and it is lower during the recession. The relative increase in frequency can be explained as follows. When the source of the waves is moving toward the observer, each successive wave crest is emitted from a position closer to the observer than the previous wave. Therefore each wave takes slightly less time to reach the observer than the previous wave. Therefore the time between the arrival of successive wave crests at the observer is reduced, causing an increase in the frequency. While they are travelling, the distance between successive wavefronts is reduced; so the waves qbunch together.q Conversely, if the source of waves is moving away from the observer, each wave is emitted from a position farther from the observer than the...Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.


Title:Radar Signal Processing
Author: Books Llc
Publisher:Books LLC, Wiki Series - 2010-09
ISBN-13:

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