Target Detection Technology in Passive Radar Based on Broadcasting Satellite Signals

Aiming at the technology of target detection based on broadcasting satellite passive radar. This paper presents the characteristic of broadcasting satellite signals and its ambiguity function. Calculates the maximum detection distance by analyzing the power loss and the gain of signal processing. Demonstrates the necessity of depressing the direct satellite signals. The conclusion of this paper is: The broadcasting satellite signal is suitable for passive radar target detection. The detection distance can achieve 100km with 36MHz signal bandwidth, 60dB gain of antenna, 1s integrated time. Appropriate methods is necessary to depress the direct wave received from the side lobe of echo antenna. The possibility of this target detection method is proved by the experiment results in this paper.