调频连续波(FMCW)雷达信号调理电路  

Signal Conditoning Circuit Application to Frequency Modulation Continuous Wave(FMCW) Radar

作　　者：汪红[1] 张杰[2] 张大彪[3] 

机构地区：[1]河北化工医药职业技术学院,河北石家庄050026 [2]解放军通信指挥学院,湖北武汉430010 [3]河北师范大学,河北石家庄050016

出　　处：《仪表技术与传感器》2012年第1期105-107,共3页Instrument Technique and Sensor

基　　金：河北省科技研究与发展计划课题(11213517D);河北省自然科学基金资助项目(2005000185)

摘　　要：文中给出一种应用于调频连续波(FMCW)雷达的信号调理电路。该电路采用低噪声前置放大器、对数主中放和具有频域压缩功能的滤波器。实验表明,该电路小信号增益大于100dB,动态范围大于80dB,具有较高的信噪比和优良的滤波性能,可有效地提高FMCW雷达的抗干扰能力。A kind of signal conditoning circuit which applied to the frequency modulation continuous wave （FMCW） radar was proposed. The circuit adopted low noise pro-amplifier,logarithm intermediate-frequency （IF） amplifier and the filter with frequency dynamic compression. Experimental results show that the little signal gain is more than 100 dB and dynamic range is over 80 dB, which has higher signal-to-noise ratio （S/N） and good filter performance. The circuit can effectively improve the anti-jamming abili- ty of FMCW radar.

关 键 词：FMCW雷达 对数放大器 抗干扰 动态范围 滤波 

分 类 号：X701[环境科学与工程—环境工程]