摘要
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。
This paper discusses the suppression to range-sidelobes of linear frequencymodulated (LFM)pulse compression signals and studies how to reduce range-sidelobe levels of a LFM signal with small time-bandwidth (TB)product. Because the rectangular property of the actual spectrum of this signal is bad, this paper describes a method named after modifying spectrum which can be used to rise the ratio of mainlobe to sidelobe ( r. m. s. ) of the pulse compression signal. This method is based on the property of digital processing. It is suitable for implementing pulse compression processing by using IMS-A100 devices. The computer simulation shows that the r. m. s. of the pulse compression signal with small TB product or large TB product is risen by modifying spectrum.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1993年第4期344-349,共6页
Journal of University of Electronic Science and Technology of China
关键词
雷达
调频
脉冲压缩
匹配滤波器
radar
linear
frequency-modulated
pulse compression
matching filter
