Suppression of Second Time Around Radar Returns Using PRI Modulation.
Abstract
It is shown that a modulated or staggered PRI radar system can offer considerable improvement over a nonstaggered radar system in rejecting second time around returns which cause false alarms. This improvement is a function of the number of staggered PRI, the quiescent false alarm number, the Swerling number of the false return, the transmitted signal power, the second time around noise power, and the quiescent noise power of the radar. Small changes in transmitted signal power can be traded-off with the quiescent false alarm number to significantly suppress the bogus return. In addition for all other parameters being equal, if the second time around return is a Swerling case II or IV target, then there is an optimum number of staggered PRI that can be chosen to minimize the likelihood of detection of the second time around return. (author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 13, 1982
- Accession Number
- ADA114985
Entities
People
- G. A. Andrews
- Karl R. Gerlach
Organizations
- United States Naval Research Laboratory