Deep space measurement and control signal error correcting method

Abstract

The invention belongs to the technical field of space physics, and relates to a deep space measurement and control signal error correcting method. The method includes the steps that tropospheric correction capital delta rho is corrected, ionospheric correction lower-case delta rho is corrected, plasma correction delta s is corrected, and finally the three types of correction are added to obtain deep space measurement and control signal error correction rho c, wherein rho c meets the equation that rho c = capital delta rho + lower-case delta rho + delta s. In the correcting process of the three types of correction, a regression method is used for building a correction correcting equation, various existing correcting models are used comprehensively, historical data can be systematically used for correcting deep space measurement and control signal error correction, and therefore the purposes of improving the deep space measurement and control signal error correcting accuracy and increasing the deep space measurement and control signal error correcting efficiency are achieved. The deep space measurement and control signal error correcting method provides technical support for deep space exploration projects of China, and has significant application value in major space activities such as Mars exploration.

Description

technical field [0001] The invention belongs to the technical field of space physics and relates to a method for correcting errors of deep space measurement and control signals. Background technique [0002] The deep-space measurement and control communication system is different from the existing ground-based and space-based measurement and control systems. Its received signal is weak and the signal delay is huge, which makes the deep-space measurement and control very different from the measurement and control of earth-orbiting spacecraft. The propagation medium of the deep space detection signal includes the middle and upper atmosphere, the ionosphere and the plasma region. In deep space exploration missions such as Mars exploration, the refraction, scattering and absorption of the measurement and control signal by the propagation medium are the main error sources affecting the accuracy of the deep space measurement and control signal. one. [0003] The error caused by t...

AI Technical Summary

Problems solved by technology

In deep space measurement and control, the signal error caused by the propagation medium will be far greater than the measurement error of the equipment in some cases, and the conventional model correction method can no longer meet the needs of the measurement and control system and data processing accuracy

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