Radar interference suppression based on spectrum notching and compressive sensing data recovery

A radar interference suppression technique based on spectrum notching and compressive sensing (CS) data recovery is addressed. Intuitively, the interference can be cancelled by notching the corrupted frequency band. However, the discontinuous (notched) spectrum data will cause the range sidelobe to significantly increase. Thus, we propose to first notch the interference in frequency domain and then reconstruct the missing/corrupted spectrum data by using CS technique. The experimental result shows after CS spectrum reconstruction, the interference is well suppressed and at the same time the problem of high range sidelobe caused by the discontinuous (notched) frequency band is effectively solved.