Abstract
The detection system of external radiation source radar system has good maneuverability, concealment and anti-electronic interference ability, because it uses navigation satellite signal as transmitting source and does not emit electromagnetic wave. The airborne radar system detects a target by receiving a secondary reflection signal from navigation satellite signal to the target. Because the navigation satellite is too far away from the target, and the target echo signal received by radar system is weaker than a clutter wave. Its clutter spectrum is more complex than that of the monostatic radar, so it is much more difficult for signal processing. By the geometric frame of the navigation satellite, the airborne radar system and the target, clutter scattering model is established. The clutter range rings are simulated with different length of baselines. The space-time clutter spectrum is theory analyzed and simulated. The corresponding theory and simulation analysis is carried out to lay a theoretical foundation for clutter suppression of radar system.
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