One-bit digital radar
One-bit digital radar
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DOI：
10.1109/acssc.2017.8335529
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发表时间：
2017-10
期刊：
影响因子：
--
通讯作者：
Jiaying Ren;Jian Li
中科院分区：
文献类型：
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作者：
Jiaying Ren;Jian Li
本文介绍了一种直接一位采样的一位数字雷达，它对接收到的射频（RF）信号进行未知抖动的采样。由于避免了模拟混频器和RF信号的下变频，数字雷达可以是节能和低价格的。未知抖动的使用允许使用常规算法有效地处理一位样本。基于分数阶傅里叶变换（FRFT）和快速傅里叶变换（FFT）的距离-多普勒估计方法用于线性调频连续波（LFMCW）传输，CLEAN算法用于目标参数估计。
This paper introduces a one-bit digital radar involving direct one-bit sampling with unknown dithering of the received radio frequency (RF) signal. Due to avoiding the analog mixer and the down-conversion of the RF signal, the digital radar can be energy-efficient and low-priced. The use of unknown dithering allows for the one-bit samples to be processed efficiently using conventional algorithms. A computationally efficient range-Doppler estimation method based on fractional Fourier transform (FRFT) and fast Fourier transform (FFT) is used for linear frequency modulated continuous wave (LFMCW) transmissions, and the CLEAN algorithm is used for target parameter estimation.