Radar Target Detection Employing On-Line Estimation of the Video Correlation.
MITRE CORP ATLANTIC CITY N J
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The Report presents a new target detection scheme for sliding window detectors. The scheme calls for adaptively adjusting leading and trailing edge target detection threshold based upon the existing coefficient of correlation between the consecutive radar returns. The coefficient of a correlation is estimated on-line by examining the ZERO-ONE pattern over a window of fixed size every scan, and updating the estimate for a specified number of scans using a least square error estimation technique. The number of scans is selected as a parameter. The recursive estimation technique facilitates the estimation of the coefficient of correlation with minimal storage requirements. A constant check on the coefficient of correlation between consecutive radar returns is made by repeating the process of on-line estimation and selection of a new set of leading and trailing edge thresholds after every preset time interval. This preset time interval reflects the time span during which the weather may be considered constant over a certain area. Modified author abstract
- Active and Passive Radar Detection and Equipment