Crosstalk in modern software defined radio for the implementation of frequency modulated continuous wave radar
Crosstalk in modern software defined radio for the implementation of frequency modulated continuous wave radar
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DOI：
10.1049/rsn2.12150
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发表时间：
2021-07
期刊：
影响因子：
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通讯作者：
Faran Awais Butt;M. Ritchie;H. Griffiths;Wenda Li;I. Naqvi
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作者：
Faran Awais Butt;M. Ritchie;H. Griffiths;Wenda Li;I. Naqvi
本研究探讨在调频连续波（FMCW）雷达系统的软件定义无线电实现的串扰和泄漏。在FMCW雷达的实施过程中，使用美国国家仪器公司的通用软件无线电外设（USRP）板进行泄漏功率的经验测量。单基地和双基地/分布式发射机接收机配置进行了比较低功率微多普勒应用。串扰对目标的动态范围的影响也进行了研究。研究了风源产生的电噪声对接收USRP的影响。此外，提出了一种简单的基于分离器的方法来克服分布式配置中传输波形的同步或恢复的挑战。
This study investigates crosstalk and leakage in the Software Defined Radio implementation of Frequency Modulated Continuous Wave (FMCW) radar systems. Empirical measurements of leakage power were conducted during the implementation of FMCW radar using National Instruments Universal Software Radio Peripheral (USRP) boards. Mono-static and bi-static/distributed Transmitter-Receiver configurations are compared for low power micro-Doppler applications. The impact of crosstalk on the dynamic range of the target is also investigated. The impact of electric noise generated by a windy source on the receiving USRP is also investigated. Furthermore, a simple splitter based approach is proposed to overcome the challenge of synchronisation or recovery of transmitted waveform in distributed configurations.