ISPRS-Archives The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Archives Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9034 ISPRS Göttingen, Germany 10.5194/isprsarchives-XXXIX-B1-1-2012 REQUEST ANALYSIS OF DGPS/IMU ON THE AIR-BORNE INSAR SYSTEM Lou L. 1 Zhang J. 1 Zheng H. 1 Liu Z. 1 Xi’an research institute of surveying and mapping,Shannxi,Xi’an,China 20 07 2012 XXXIX-B1 1 4 Copyright: © 2012 L. Lou et al. 2012 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://isprs-archives.copernicus.org/articles/XXXIX-B1/1/2012/isprs-archives-XXXIX-B1-1-2012.html The full text article is available as a PDF file from https://isprs-archives.copernicus.org/articles/XXXIX-B1/1/2012/isprs-archives-XXXIX-B1-1-2012.pdf

The DGPS/IMU can measure position and velocity extremely high, and it is widely used in air-borne InSAR system. The passage based on the DGPS/IMU's action in the airborne InSAR system, makes sure the interference phase accuracy, from the analysis of the interference phase accuracy influence by InSAR imaging motivation compensation makes sure the interference phase accuracy, and analyzes the system's request of DGPS/IMU from the DEM accuracy's influence by DGPS/IMU's surveying error. <b>At last the paper advances the accuracy request of the DGPS/IMU system, and provides basis for the InSAR system's selection of DGPS/IMU system.</b>