Ka波段小型化FMCW雷达低中频信号处理技术研究 |
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引用本文: | 武青华,崔恒荣,孙朋飞,孙芸,孙晓玮.Ka波段小型化FMCW雷达低中频信号处理技术研究[J].电子器件,2016,39(5). |
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作者姓名: | 武青华 崔恒荣 孙朋飞 孙芸 孙晓玮 |
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作者单位: | 中国科学院上海微系统与信息技术研究所 |
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摘 要: | 为了显著降低FMCW雷达后端数字信号处理电路的电路面积与电路成本,提出了低中频的设计思路,利用频谱搬移技术对目标信号进行下变频处理,使目标信号频率在20KHz以下,相比直接对目标信号进行处理,A/D采样率得到减小,对3.5m处的目标进行测试,测试结果得到目标频率从160KHz有效的降低到了10KHz,验证了低中频方法的可行性,满足小型化低成本雷达应用需求。
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关 键 词: | 毫米波 信号处理 频谱搬移 低中频 |
Design of Low-IF Signal Processing Technique for Ka-band Compact FMCW Radar |
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Abstract: | For decrease the circuit size and cost of signal processing circuits, the low-intermediate frequency(IF) signal processing method is proposed that using the spectrum moving technique to make the frequency of the target under 20 KHz and reduce the A/D sampling rate. Test results of the target at 3.5m obtain the distance frequency reduction from 160 KHz to 10 KHz that verified the proposed low-IF signal processing method can meet the miniaturized and low-cost radars application. |
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Keywords: | Millimeter-wave signal processing spectrum move low-IF |
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