Method for Determining the Response Boundary of Principal Component Factors of Star Sensor's On-orbit Attitude Measurement Accuracy
A technology of star sensor and measurement accuracy, which is applied in the field of satellite analysis and can solve the problems that have not been seen in analysis and research work.
Active Publication Date: 2020-04-24
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
For the "inverse problem"—that is, to achieve the set on-orbit attitude measurement accuracy index of the star sensor (such as the accuracy index of 1 arc second), the analysis and research work on the limitations and boundary conditions of various influencing factors or systems has not yet been seen.
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[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0018] Such as figure 1 As shown, the method for determining the principal component factor response boundary of the star sensor's on-orbit attitude measurement accuracy provided by the present invention includes:
[0019] 101. For each principal component factor of the star sensor's on-orbit attitude measurement accuracy, construct a priori model of each principal component factor according to the influence relationship of each principal ...
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The invention relates to the field of satellite analysis, in particular to a method for determining response boundaries of main composition factors of on-orbit attitude measurement accuracy of a starsensor. The method comprises the following steps: prior models of the main composition factors are established according to an influence relation of the main composition factors in a star sensor attitude measurement system equation; tests are designed for the main composition factors, test data is produced, and primary accuracy influence models of the main composition factors are obtained according to combination of the prior models of the main composition factors and the test data; the primary accuracy influence models of the main composition factors are optimized, and corresponding accuracyinfluence models of the main composition factors are obtained; an integrated comprehensive accuracy response model of the main composition factors of on-orbit attitude measurement accuracy of the starsensor is established according to combination of the accuracy influence models of the main composition factors and an interactive coupling relation of the main composition factors; on-orbit attitudemeasurement accuracy indexes of the star sensor are set, and the response boundary of each main composition factor is determined.
Description
Technical field [0001] The invention relates to the field of satellite analysis, in particular to a method for determining the response boundary of principal component factors of the on-orbit attitude measurement accuracy of a star sensor. Background technique [0002] Earth observation satellites are the general term for man-made earth satellites that observe the earth’s land, atmosphere and oceans through space remote sensors, including surveying and mapping satellites, resource satellites, marine satellites, and meteorological satellites. Its application areas involve map surveying and mapping, land surveys, and urban Planning, geological prospecting, ocean management, weather forecasting, disaster monitoring, military reconnaissance, missile early warning and battlefield evaluation. The information obtained through earth observation is the country's basic strategic resource, which plays an important role in ensuring economic development and maintaining national security. [00...
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IPC IPC(8): G01C21/02
CPCG01C21/02
Inventor 王炯琦周萱影陈彧赟侯博文周海银何章鸣矫媛媛
Owner NAT UNIV OF DEFENSE TECH