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本文提出了一种用于微型无人机的Ku波段FMCW合成孔径雷达收发机芯片,采用65nm CMOS工艺实现,功耗仅260mW,带宽1.48GHz。解决了在微型无人机平台上实现高分辨率SAR成像的低功耗、小尺寸需求。
capabilities to acquire imagery during night and inclement weather is indispensable for remote sensing, traffic mapping, etc. Recent unmanned aerial vehicles (UAVs) have been miniaturized to <1m3, providing an inexpensive and flexible platform for SAR imaging applications. Besides, there is increasing demand on the high resolution SAR imaging function. For both, it is a requisite to develop a single-chip SAR TRX with <300mW power consumption, <10mm2 size and <20cm resolution, making it suitable for payload on micro-UAVs. FMCW TRXs have been reported for vehicle radars [1,2], motion-detection sensors, and beam-forming imagers. For payload on a micro-UAV, one issue to tackle is to suppress RF amplitude ripples. The RF amplitude ripple is an aggregate
Yong Wang, Kai Tang, Ying Zhang, Liheng Lou, Bo Chen,
Supeng Liu, Lei Qiu, Yuanjin Zheng Nanyang Technological University, Singapore, Singapore Synthetic aperture radar (SAR) that complements optical imagers with