Signal Processing in Radar Systems

4  Algorithms of Target Range Track Detection and Tracking

Target range tracking is accomplished by continuously measuring the time delay between the transmission of an RF pulse and the echo signal returned from the target and converting the roundtrip delay into units of distance. The range measurement is the most precise position-coordinate measurement of the radar; typically, with high SNR, it can be within a few meters at hundreds-of-kilometers range. Range tracking usually provides the major means for discriminating the desired target from other targets, although the Doppler frequency and angle discrimination are also used, by performing range gating (time gating) to eliminate the echo of other targets at different ranges from the error ...