Pi/K Phase Modulation for MIMO Digitally Modulated Radars

Pi/K Phase Modulation for MIMO Digitally Modulated Radars
复制标题

用于 MIMO 数字调制雷达的 Pi/K 相位调制

DOI:
10.1109/radarconf2248738.2022.9764340
复制
发表时间:
2022
期刊:
2022 IEEE Radar Conference (RadarConf22)
影响因子:
--
通讯作者:
A. Bourdoux
A. Bourdoux
中科院分区:
--
文献类型:
--
作者:
M. Bauduin;A. Bourdoux

文献摘要

被引文献

相似文献

本文表明,我们可以借助称为 $\pi/K$ 调制的技术来提高数字调制雷达(例如 PMCW、OFDM)收发模拟前端非理想信号的鲁棒性。这包括在传输信号之上应用渐进的 $\pi/K$ 相位旋转。我们表明,$K$ 的某些特定值可以消除 IQ 不平衡和接收器 DC 偏移的影响,而无需额外的复杂信号处理。此外,该解决方案还提供MIMO功能。 $\pi/K$ 调制不会影响代码序列的属性,但会改变前端非理想性的影响。因此,我们可以将这个参数$K$视为一个新的自由度,可用于改进数字调制雷达。
This paper shows that we can improve the robust-ness of Digitally Modulated radars (e.g. PMCW, OFDM) to transceiver analog front-end non-idealities with the help of a technique called $\pi/K$ modulation. This consists in applying a progressive $\pi/K$ phase rotation on top of the transmitted signal. We show that some specific values of $K$ can remove the impact of IQ imbalance and receiver DC offset without requiring additional complex signal processing. In addition, this solution also provides MIMO capabilities. The $\pi/K$ modulation does not impact the property of the code sequence but changes the impact of front-end non-idealities. Therefore, we can see this parameter $K$ as a new degree of freedom which can be used to improve Digitally Modulated radars.