Characterization and Analysis of Mutual Terrain-Scattered Interference Based on Different Jamming Signal Waveforms

Mutual terrain scattered interference (MTSI) has gradually emerged as an emerging threat, which leads to degraded imaging quality. In previous studies, the signal form of MTSI is similar to the synthetic aperture radar (SAR) signal, both being linear frequency modulation (LFM) signals. With the increase of satellite constellations in various applications, the potential of MTSI by different signal waveforms is also increasing. This paper investigates the characterization of MTSI based on different jamming signal waveforms. First, the MTSI scenario is constructed and the MTSI signal models based on three jamming waveforms, i.e., multiple-point frequency, LFM, and sinusoidal-modulated (SM), are derived. Then, the impact of different waveforms on MTSI is analyzed from multiple perspectives. The experimental results illustrate the relationship between various jamming waveforms and MTSI.