DEVELOPMENT AND PRELIMINARY RESULTS OF SMALL-SIZE UAV-BORNE FMCW SAR

	DEVELOPMENT AND PRELIMINARY RESULTS OF SMALL-SIZE UAV-BORNE FMCW SAR
	Zhang, Xiangkun; Shao, Zelong; Ren, Jiawei; Li, Yingsong; Jiang, Jingshan
	2018
会议日期	JUL 22-27, 2018
会议地点	Valencia, SPAIN
关键词	FMCW Synthetic Aperture Radar SAR/ISAR UAV
页码	7825-7828
英文摘要	The small-size unmanned aerial vehicle (UAV) is being used widely in many fields, especially in surveying, mapping and remote sensing. Due to the platform's size and load ability, its payload is strictly limited. Synthetic aperture radar(SAR) is a kind of microwave imaging instrument with high performance under all weather, day and night conditions. Highly miniaturized SAR can satisfy the requirement of observation on small UAV. Frequency modulation continuous wave (FMCW) technology provides a way for small volume, low cost, high reliability and high resolution SAR. FMCW SAR transmits frequency modulated signal continuously. This reduces the peak power, which is the important factor determining the size and cost of SAR. Meanwhile, due to transmitting and receiving signals simultaneously, increasing the isolation between the transmitter and receiver becomes associated problem. Two separated antennas solve the problem partly. There is another problem in processing algorithm. Long duration of signal makes the assumption of stop and go model ineffective. Frequency scaling algorithm has to be chosen to correct the phase variation during one period of frequency sweep. Procedure of development for prototype and practical systems and verification experiments are shown in this paper. The results of experiments with such radars prove the expected performance.
会议录	IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
语种	英语
ISSN号	2153-6996
ISBN号	978-1-5386-7150-4
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/6709]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Zhang, Xiangkun,Shao, Zelong,Ren, Jiawei,et al. DEVELOPMENT AND PRELIMINARY RESULTS OF SMALL-SIZE UAV-BORNE FMCW SAR[C]. 见:. Valencia, SPAIN. JUL 22-27, 2018.