Evaluation of BAQ on Tiangong-2 interferometric imaging radar altimeter data compression

	Evaluation of BAQ on Tiangong-2 interferometric imaging radar altimeter data compression
	Shi, Xiaojin; Zhang, Yunhua; Dong, Xiao
	2018
会议日期	May 14, 2018 - May 17, 2018
会议地点	Poznan, Poland
关键词	Interferometric Imaging Radar Altimeter (Inira) Block Adaptive Quantization(Baq) Synthetic Aperture Radar (Sar) Data Compression
页码	623-624
英文摘要	Tiangong-2 Interferometric imaging radar altimeter (InIRA) applies the technology of small incident angle and high precision interferometric phase measurement, which has the characteristics of wide swath, imaging and high accuracy height measuring. Compared with traditional altimeter, InIRA can realize much wider swath and can obtain SAR image of observed area, so there is a high requirement of onboard memory and downlink speed for InIRA. As a result, we need to investigate data compression technique for InIRA to reduce the data rate. As an efficient algorithm for SAR echoes data compression, Block Adaptive Quantization (BAQ) is widely used to spaceborne SAR system for raw data compression. The motivation of this work is to evaluate the influence of BAQ algorithm on interferometric coherence and sea surface height error for InIRA. © 2018 Warsaw University of Technology.
会议录	MIKON 2018 - 22nd International Microwave and Radar Conference
语种	英语
ISBN号	9788394942113
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/6372]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Shi, Xiaojin,Zhang, Yunhua,Dong, Xiao. Evaluation of BAQ on Tiangong-2 interferometric imaging radar altimeter data compression[C]. 见:. Poznan, Poland. May 14, 2018 - May 17, 2018.