Detection and velocity estimation of aircrafts in bistatic radar data using target back propagation technique

"Target Back Propagation Technique" overcomes the problem occurring when radar targets migrate out of the resolution cells during scan integration time for surveillance radars. This paper addresses the technique where the idea is simply to back propagate possible targets with different velocities over the scans selected for integration and then detect the strongest response. Sampled radar data containing 6 aircrafts is presented. The technique is used on an image with bistatic geometry averaged over 3 scans and with target back propagation locally applied for each aircraft. All aircrafts are sharpened in the image and this illustrates the usefulness of the "Target Back Propagation Technique", even if just three scans are used.