Radar bistatique passif utilisant les ondes FM dédié à la surveillance aérienne

Abstract

In this work, we describe and analyze an example of an experimental passive bistatic radar system. This PBSR uses echoes from an FM radio transmitter. The study consists of exploiting Matlab-Simulink tools. In doing this, we first generate and modulate the FM wave that may be transmitted by a source of opportunity, and then simulate the environment and the target of interest. To efficiently remove the direct signal interference from the receiver channels, we make use of an adaptive filter algorithm (NLMS). Then, to enhance the quality of the received signal, we substitute the conventional matched filter by a computationally efficient cross-correlation technique. Finally, we use the CA-CFAR detector to perform target detection. The estimation of the angles of arrival is also discussed