Compressive sensing based passive bistatic radar processing using time-domain complex data

Passive bistatic radar (PBR) systems exploit communication signals available in the environment for surveillance and tracking applications. Currently, GSM mobile communication signals are almost everywhere specially in the populated areas and road networks. PBR systems based on GSM signals are quite suitable for short-range surveillance systems. But the low-bandwidth of the signal results in low range resolution when classical cross-correlation based processing is used for target detection. An improved PBR processing method is described here which uses a single GSM channel and compressive sensing (CS) measurements. The CS is employed to process time-domain complex samples of received signal for the purpose of improving both range and Doppler resolutions. Different target scenarios are considered to illustrate the effectiveness of proposed CS-based processing scheme.