A Sidelobe Suppression Method of 1-bit Quantized Chirp Pulse Compression Signal

1-bit quantization technology can significantly reduce the amount of DFT computation, the power consumption and complexity of the receiver. However, it will worsen the main and sidelobe ratio of the pulse compression of the chirp signal significantly. Meanwhile, miss or false alarms of the small target near the sidelobe are also arisen. To solve this problem, a sidelobe suppression method based on combined window function is proposed in this paper, which is suitable for 1-bit quantized chirp pulse compression signal. The simulation results demonstrate that the main and side lobe ratio can be increased to more than 30dB with the presented method, which has great application value in the engineering practice.