Simulation of Radar Payload Carried an Onboard Unmanned Aerial Vehicle

The objective is to design a moving target indication(MTI) radar to mitigate the clutter and identify moving targets . For a radar system, clutter refers to the received echoes from environmental scatters other than targets, such as land, sea or rain. Clutter echoes can be many orders of magnitude larger than target echoes. An MTI radar exploits the relatively high Doppler frequencies of moving targets to suppress clutter echoes, which usually have zero or very low Doppler frequencies. A typical MTI radar uses a high pass filter to remove energy at low Doppler frequencies. Since the frequency response of an FIR high pass filter is periodic, some energy at high Doppler frequencies is also removed. Targets at those high Doppler frequencies thus will not be detectable by the radar. This issue is called the blind speed problem. By using a technique, called staggered PRFs, the blind speed problem can be resolved.