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
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
A. Bourdoux
中科院分区:
文献类型:
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作者:
M. Bauduin;A. Bourdoux
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.