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讨论了一种超低噪声的三毫米波ＬＦＭＣＷ 雷达接收机的设计和实现，提出并实现了线性调频连续波雷达差拍信号的频域动态范围压缩技术，降低了雷达系统对Ａ／Ｄ变换器动态范围的要求。实验结果表明，该接收机具有超低噪声、高增益和好的频率响应特性，可满足三毫米波ＬＦＭＣＷ 雷达系统应用的需要
The design and implementation of an ultra low noise three millimeter wave LFMCW radar receiver are discussed. The frequency domain dynamic range compression technology of LFMCW beat signal is proposed and implemented, which reduces the impact of radar system on A / D converter Dynamic range requirements. Experimental results show that the receiver with ultra-low noise, high gain and good frequency response characteristics to meet the needs of three millimeter wave LFMCW radar system applications