Accession Number:

AD0844090

Title:

Echo Splitting in Linear FM Doppler Ranging Systems.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1968-09-01

Pagination or Media Count:

64.0

Abstract:

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

Subject Categories:

  • Cybernetics
  • Acoustic Detection and Detectors
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE