Direct Signal Recovery for Airship Borne Passive Bistatic Radar

Airship borne passive bistatic radar exploiting frequency modulated broadcasting signals is a new type of radar system. Co-frequency interference is frequently encountered in the airship borne passive bistatic radar. Blind source separation called independent component analysis is utilized to recover the direct signal in the above scenarios. The difference of the correlated function in beam space based on the direction of the co-frequency station is utilized to solve the permutation problem of the ICA. The performance of the proposed approach is validated by computer simulation.