Doppler Shift Tolerance of Typical Pseudorandom Binary Sequences in PMCW Radar.
Doppler Shift Tolerance of Typical Pseudorandom Binary Sequences in PMCW Radar.
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PMCW雷达中典型伪随机二值序列的多普勒频移容限。
DOI：
10.3390/s22093212
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发表时间：
2022-04-22
期刊：
影响因子：
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在全数字雷达系统的背景下，基于伪随机二进制序列（PRBS）的相位调制连续波（PMCW）似乎是用于诸如自动驾驶的应用的突出候选调制方案。其候选资格的原因之一是其简化的发射机架构和较低的线性要求（例如，与正交频分复用雷达相比），以及其高速无模糊性和多输入多输出运算能力，这些都是数字雷达的特点。对于PMCW雷达的适当操作，选择其周期自相关函数（PACF）具有低旁瓣和对多普勒频移的高鲁棒性的PRBS是至关重要的。在这个意义上，本文进行了PMCW雷达系统中典型采用的PRBS的PACFs的多普勒频移容限的仿真和测量结果的支持下进行了分析。为了准确地测量多普勒频移引起的PACFs的退化，峰值功率损耗比（PPLR），峰值旁瓣电平比（PSLR）和集成旁瓣电平比（ISLR）被用作度量。此外，占目标的距离不是距离分辨率的倍数的影响，过采样PACFs进行了分析。
In the context of all-digital radar systems, phase-modulated continuous wave (PMCW) based on pseudorandom binary sequences (PRBSs) appears to be a prominent candidate modulation scheme for applications such as autonomous driving. Among the reasons for its candidacy are its simplified transmitter architecture and lower linearity requirements (e.g., compared to orthogonal-frequency division multiplexing radars), as well as its high velocity unambiguity and multiple-input multiple-output operation capability, all of which are characteristic of digital radars. For appropriate operation of a PMCW radar, choosing a PRBS whose periodic autocorrelation function (PACF) has low sidelobes and high robustness to Doppler shifts is paramount. In this sense, this article performs an analysis of Doppler shift tolerance of the PACFs of typically adopted PRBSs in PMCW radar systems supported by simulation and measurement results. To accurately measure the Doppler-shift-induced degradation of PACFs, peak power loss ratio (PPLR), peak sidelobe level ratio (PSLR), and integrated-sidelobe level ratio (ISLR) were used as metrics. Furthermore, to account for effects on targets whose ranges are not multiples of the range resolution, oversampled PACFs are analyzed.
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影响因子：
3.6
作者：
Roos, Fabian;Bechter, Jonathan;Waldschmidt, Christian
通讯作者：
Waldschmidt, Christian
影响因子：
1.9
作者：
GOLD, R
通讯作者：
GOLD, R
影响因子：
3
作者：
de Oliveira, Lucas Giroto;Bekker, Elizabeth;Zwick, Thomas
通讯作者：
Zwick, Thomas
DOI：
10.1109/taes.2019.2899797
发表时间：
2019-06-01
影响因子：
4.4
作者：
Dokhanchi, Sayed Hossein;Mysore, Bhavani Shankar;Ottersten, Bjorn
通讯作者：
Ottersten, Bjorn
DOI：
10.1109/tit.1961.1057620
发表时间：
1961-01-01
期刊：
IRE TRANSACTIONS ON INFORMATION THEORY
影响因子：
--
作者：
GOLAY, MJE
通讯作者：
GOLAY, MJE