Radar Transceivers for Inverse Synthetic Aperture Radar (ISAR) Imaging of Human Activity in 65nm CMOS

2019 32nd IEEE International System-on-Chip Conference (SOCC) Pub Date : 2019-09-01 DOI:10.1109/SOCC46988.2019.1570571692

Liheng Tang, Kai Tang, Zhongyuan Fang, Yisheng Wang, Bo Chen, Ting Guo, Chuanshi Yang, Yuanjin Zheng

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Abstract

The paper presents two radar transceivers operating at Ku-band. These radar transceivers are of complete design employing blocks from frontend to backend and support high-resolution synthetic aperture radar imaging, aiming at the application in human activity sensing. Frequency-modulated continuous wave scheme is adopted for both radar transceivers, free of range-ambiguity while taking the advantages of narrow IF for low-power consumption. Fabricated in a 65nm CMOS, the radar chips work at 1.2V supply, and first chip provides up to 1.5GHz chirp bandwidth, while the second provides upto 2GHz in Ku-band. The chirp can be configured in either triangle or sawtooth mode, exhibits with frequency error of $\sim179$ kHz RMS and covering a configurable RF chirp rate from 0.4 to 3.2GHz/ms. The first radar chip has an active area of 4.06mm2 and consumes 259.4mW, while the second has an active area of 3.24mm2 and consumes 209mW. SAR imaging experiment shows that both chip is able to support to sense the human motion.

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65nm CMOS反合成孔径雷达(ISAR)人体活动成像雷达收发器

本文介绍了两种工作在ku波段的雷达收发机。这些雷达收发器前端到后端采用完整的模块设计，支持高分辨率合成孔径雷达成像，旨在应用于人体活动感知。两种雷达收发机均采用调频连续波方案，在利用窄中频低功耗优势的同时，避免了距离模糊。雷达芯片采用65nm CMOS制造，工作电压为1.2V，第一个芯片提供高达1.5GHz的啁啾带宽，而第二个芯片提供高达2GHz的ku波段。啁啾可以配置为三角形或锯齿模式，频率误差为$ $ sim179$ kHz RMS，可配置的射频啁啾率为0.4至3.2GHz/ms。第一个雷达芯片的有源面积为4.06mm2，功耗为259.4mW，第二个雷达芯片的有源面积为3.24mm2，功耗为209mW。SAR成像实验表明，这两种芯片都能够支持人体运动感知。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 32nd IEEE International System-on-Chip Conference (SOCC)

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