Multi-transmitter clutter modeling for passive STAP

In passive radar, the receiver is limited to commercial waveforms from various emitters of opportunity. In addition, the geometry in three dimensional space between the receiver and various transmitters creates many performance considerations when applying space time adaptive processing (STAP). This paper presents the difference in signal-to-interference-plus-noise ratio (SINR) performance for different geometries using a simulated Long-Term Evolution (LTE) waveform. Overall, the out-of-plane angle and relative grazing angles greatly influence the clutter power in angle Doppler space.