Ground test and verification method and system for high-precision spectral speed measurement navigator

Abstract

The invention discloses a ground test and verification method and system for a high-precision spectral speed measuring navigator. The method is characterized in that a relative motion state between a target simulation source and a navigation system is established in a way of driving a runner by a motor, sample input for test is provided for a to-be-tested navigator system, imaging and calibration of a spectrogram are completed by virtue of a to-be-tested navigator test platform, the picking and information calculation of the spectrogram are completed by combining ground receiving and control terminals, and the ground test and verification of the function and performance of the navigator can be realized. The invention also provides a corresponding ground test and verification system. The method and the system are simple in principle, intuitive and reliable, and a novel method and novel concept for the ground test and verification of the spacecraft spectral speed measuring navigator are provided. The invention provides the method for implementing high-precision spectral navigator test by adopting a controllable relative motion simulation device for the current situation that a current spectral speed measuring navigator lacks the ground test and verification system. The method can be effectively applied to the deep space and near-Earth space mission of autonomous light-wave Doppler-effect navigation, and the corresponding technical gap can be filled.

Description

technical field [0001] The invention relates to the field of aviation, in particular to a method and system for ground testing and verification of a high-precision spectrum speed measuring navigator. Background technique [0002] For most spacecraft, especially deep-space mission spacecraft, the autonomous navigation capability during orbital flight is one of the important indicators of whether the spacecraft can operate in orbit for a long time without relying on ground support. From the perspective of astronomical autonomous navigation methods, there are mainly astronomical angle measurement navigation and pulsar navigation. The accuracy of the former is limited by the image quality of the captured target source celestial body image, while the latter is limited by the accuracy of pulse signal integration timing. The astronomical spectrum speed measurement and navigation method based on the Doppler effect proposed in this paper is quite different from the above two methods ...

AI Technical Summary

Problems solved by technology

To carry out the design of the navigator system with this index as the design input, the ground test verification system should also have the corresponding accuracy detection means. At present, it is still necessary to propose a ground test verification plan for this navigation method

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