【雷达与对抗】【2011.08】D3MON雷达中的脉冲压缩研究

D3MON雷达系统是一种采用固态发射机的高频、全扫描、便携式气象雷达。这些发射机的存在意味着低峰值功率，通过使用传统的窄脉冲进行传输，将在雷达输出端产生信噪比损失，使其在气象应用中显得过时。然而，窄脉冲雷达在分辨率方面有很大的优势。因此，当时的想法是使用脉冲压缩，这是一种利用短脉冲保持高信噪比的技术。近年来，许多脉冲压缩技术在军事和气象雷达中得到了广泛的应用。该项目的主要目标是研究不同的脉冲压缩系统，并选择一种能够保证D3MON雷达系统最佳性能的脉冲压缩系统，同时考虑系统的规格设计，更具体地说是发射机和接收机的规格。通过对传统脉冲压缩技术的深入研究，结合不同的信号处理概念，提出了一套完整的脉冲压缩系统。压缩系统包括由加权子脉冲组成的波形，具有特定的频率调制特性，以及响应传输波形特性的压缩匹配滤波器。

D3MON radar system is a high frequency, full scan and transportable meteorological radar which uses solid state transmitters. The presence of these transmitters means low peak powers which by using the traditional narrow pulses for the transmission will generate losses in the signal to noise ratio at the output of the radar making it obsolete for meteorological applications. Nevertheless the use of narrow pulse in radar has a big advantage in matter of resolution. So the idea was then the use of pulse compression, which is a technique that having the advantages of using a short pulse will keep high the signal to noise ratio. Many pulse compression techniques have been studying during the years for military and meteorological radar applications. The main goal of this project was to study the different pulse compression systems and to choose the one that assure the best performance for D3MOM radar system taking into account the specification of the system and more specifically the specifications for the transmitter and the receiver. After a careful study of the traditional pulse compression techniques and the integration of different signal processing concepts a complete compression system is proposed. The compression system consist of a waveform made up by weighted subpulses, with specific frequency modulation characteristics, and a compression matched filter that responds to the characteristics of the transmitted waveform.

1. 研究背景
2. 理论框架
3. 脉冲压缩特征
4. 高频雷达（D3MON）
5. 讨论与建议
   附录A 距离分辨力
   附录B 泰勒系数
   附录C 发射信号的Zac变换
   附录D 网络与雷达信号

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