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Research and Experimental Analysis on Calibration of the Airborne POS

Author: QuZhi
Tutor: LuXiuShan；ZhengZuoYa
School: Shandong University of Science and Technology
Course: Geodesy and Survey Engineering
Keywords: Airborne POS Inertial Measurement Unit ( IMU ) Calibration Accuracy Assessment
CLC: P228.4
Type: Master's thesis
Year: 2011
Downloads: 66
Quote: 0
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Abstract


GPS and INS as two of the main navigation system has its advantages and disadvantages obvious complementarity GPS navigation is incomplete , the INS error accumulation problem can be overcome , the combination of the two is not only , but also provide users with a high sampling rate, high reliability , parameter - rich navigation services . GPS and INS integrated technology products - POS become a hot research in many areas . POS consists principally of the inertial measurement unit ( IMU ) and GPS devices , calibration part of this topic POS inertial measurement unit , including its calibration method the initial alignment repeatability detection , tracking precision calibration of the attitude angle and static drift testing ; with the use of GPS in a later section on the accuracy of a POS such as GPS and IMU time synchronization accuracy for analysis. In view of the domestic point of view from the mapping less precision calibration of the POS system , especially the IMU calibration services for mobile mapping system has not yet formed a mature and standardized techniques and methods , the paper mainly studies for the several domestic airborne POS precision calibration method . Performance and direct access to the accuracy of the exterior orientation elements for further study of airborne POS POS directly in the calibration field experiments or actual flight test data obtained after processing and a series of transformations of the exterior orientation of the image element values ??, and obtained eccentric angle required corrections . Exterior orientation element values ??obtained after making the necessary corrections and proven methods in this article to compare this process through software programming . Finally, to obtain experimental data of the actual acquisition of a set of POS in the ground-to-ground calibration field , its reconciliation with the above - described method for processing operator , and the accuracy of assessment and analysis of their results .

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Geodesy > Satellite geodesy and space geodesy > Global Positioning System (GPS)
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