讨论线性调频脉冲压缩信号距离旁瓣的抑制。研究如何降低小时带积线性调频信号距离旁瓣电平问题,针对该信号频谱矩形特性差,提出了采用频谱修正方法来提高脉冲压缩信号的主副比。该方法具有全数字式处理特点,适宜使用IMS A100器件实现脉冲压缩处理。计算机模拟结果表明,无论是小时带积还是大时带积的线性调频信号,经谱修正后,脉冲压缩信号的主副比均舍得到提高。 Discusses the suppression of sidelobes from chirp-compressed signals. In this paper, we study how to reduce the sidelobe level of the linear frequency modulated signal with hourly products. In view of the poor rectangular characteristics of the signal, a spectrum correction method is proposed to improve the main and auxiliary ratio of the pulse compression signal. The method is fully digital processing and is ideally suited for pulse compression using IMS A100 devices. The results of computer simulation show that the main and auxiliary ratio of pulse compression signal is improved after spectrum correction, no matter it is the chirp signal with small product or large product.