Echo Splitting in Linear FM Doppler Ranging Systems.
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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Echo splitting is a phenomenon that produces difficulties in estimating target range and speed for radar and sonar systems. It occurs when more than one returned pulse is received from a single target for each transmitted pulse. This thesis investigates the effects of echo-splitting distortion of a linear frequency modulated chirp signal. An ambiguity function is proposed for both narrow-band and wideband analysis of multiple and overlapping target returns. The double echo situation is examined in detail and equations are developed for both the narrow-band and wideband cases. Finally, using typical sonar parameters, sample computer drawn plots of these ambiguity functions are presented. Author
- Acoustic Detection and Detectors
- Active and Passive Radar Detection and Equipment