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本文叙述了一种实验型自适应数字脉冲压缩系统。该系统可实现发射波形的存贮样本与雷达接收信号之间的复相关。该系统之所以具有自适应性,关键在于使用了高速超大规模数字集成电路,从而使带宽达到l0MHz以上,同时能够对每一次发射使用不同的波形或脉冲编码。在存在热噪声以及受到与当前发射不匹配的其它波形的干扰时,使用多相码及二相码两种编码对自适应数字脉冲压缩系统进行了评价。虽然,自适应数字脉冲压缩系统可用来代替常规的声表面波脉冲压缩器,但其全部潜在能力只有当应用在需要使用许多不同波形的多功能需达中时才能体现出来。
This article describes an experimental adaptive digital pulse compression system. The system enables the complex correlation between the stored samples of the transmitted waveform and the radar received signal. The reason why the system is adaptive, the key lies in the use of high-speed ultra-large-scale digital integrated circuits, so that the bandwidth up to l0MHz, at the same time for each launch using different waveforms or pulse coding. In the presence of thermal noise and interference with other waveforms that do not match the current emissions, an adaptive digital pulse compression system was evaluated using both multi-phase codes and two-phase codes. While adaptive digital pulse compression systems can be used in place of the conventional SAW pulse compressors, their full potential is only evident when applied to multifunction needs that require many different waveforms.