Dechirp-on-Receive Linearly Frequency Modulated Radar as a Matched-Filter Detector

It is widely assumed that dechirp-on-receive linearly frequency modulated radar is a form of matched filtering, although this is rarely demonstrated. In this correspondence it is shown that this type of radar receiver, specifically linearly frequency modulated CW (LFMCW) radar and stretch processing radar, closely approaches matched filtering, and so can be assumed to have the same well-understood properties and advantages as that class of detectors.