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从增强雷达抗干扰反截获能力、抗反辐射导弹( A R M )攻击及提高目标检测能力出发,成功研制出了多波形脉冲压缩系统。该系统采用数字波形产生和数字脉压技术,使多种不同形式和不同长度的信号可在同一系统上产生并完成脉冲压缩处理,为现代雷达设计和既有雷达的技术改造提供了一种有效的途径。系统设计码元宽度02μs,码长于128 内可变。据多种雷达工作的实际需要,我们分别设计了压缩比为45、60、75、95 的线性与非线性调频信号及几种多相码信号。系统测试结果表明,对时带积大于60 的不同形式波形压缩输出主副比在fd = 0 时均超过30d B,是较小时带积低采样率处理的先进水平。
The multi-waveform pulse compression system has been developed successfully from the aspects of enhancing anti-interference ability of radar anti-interception, anti-anti-radiation missile (A R M) attack and improving target detection capability. The system uses digital waveform generation and digital pulse pressure technology, so that a variety of different forms and different lengths of signal can be generated on the same system and complete pulse compression processing, the design of modern radars and existing radar technology provides an effective transformation Way. System design symbol width 0 2μs, code length within 128 variable. According to the actual needs of a variety of radar work, we have designed a compression ratio of 45,60,75,95 linear and nonlinear FM signals and several multi-phase code signals. The results of system tests show that the main and auxiliary ratios of different forms of waveform output with time-domain products greater than 60 are more than 30d B when fd = 0, which is the advanced level of processing with a smaller time-domain product with lower sampling rate.