Accession Number : ADA289533

Title :   The Ambiguity Function of the Stepped Frequency Radar.

Descriptive Note : Final rept.,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Huang, Jen-Chih

PDF Url : ADA289533

Report Date : SEP 1994

Pagination or Media Count : 97

Abstract : High range resolution radar systems have many advantages such as target classification, resolution of multiple target, accurate range profile and detection of low radar cross section (RCS) targets in clutter. High range resolution requires large bandwidths. Stepped frequency waveforms can achieve high range resolution by increasing the effective bandwidth without increasing the instantaneous bandwidth which would increase the hardware requirements including higher analog to digital (AID) sampling rates which are limited by existing technology. Under today's hardware limitations, the stepped frequency waveform becomes very important. This thesis briefly discusses the stepped frequency radar and associated signal processing, it investigates the ambiguity function of the stepped frequency waveform and the stepped frequency radar system. Mathematical expressions of ambiguity functions are derived and the improvement of clutter suppression capability for the stepped frequency radar by rejecting initial pulses is also discussed.

Descriptors :   *RADAR CROSS SECTIONS, *RADAR TARGETS, *RADAR PULSES, MATHEMATICAL MODELS, SIGNAL PROCESSING, FREQUENCY, WAVEFORMS, MULTIPLE TARGETS, THESES, HIGH RESOLUTION, RADAR RECEIVERS, RADAR CLUTTER, MATCHED FILTERS, AMBIGUITY, RADAR TRANSMITTERS.

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE