Mars rover GNC system physical model construction method based on information physical fusion

Abstract

The invention discloses a Mars rover GNC system physical model construction method based on information physical fusion. According to a communication protocol and design parameters of a Mars rover GNCsystem, a physical model of each part of single machine is established; after interface debugging, parameter debugging is carried out on the physical model through test data; and physical model parameter adjustment is achieved, and the operation state of the Mars rover at the next moment is calculated through the adjusted physical model, so that the problem that a traditional Mars rover GNC system model can only simulate the input quantity and the output quantity of a single-machine product and cannot comprehensively analyze the operation state of the Mars rover due to the fact that influences of other physical quantities are ignored is solved.

Description

technical field [0001] The invention relates to a method for constructing a physical model of a Mars rover GNC system based on information-physical fusion, and belongs to the field of test equipment for a Mars rover GNC subsystem. Background technique [0002] The GNC subsystem of the Mars rover includes a variety of stand-alone products, and each stand-alone product is simultaneously affected by multiple physical factors during operation. In the usual subsystem test, the input and output logic of stand-alone products are generally only simulated on the test equipment, while changes in other physical quantities are ignored. At the same time, the traditional telemetry data monitoring can only rely on the naked eye interpretation of the testers, which is likely to cause data omissions and misjudgments. The time resolution of the telemetry packets to the ground is extremely low and the time lag is large, which makes it difficult for traditional ground support systems to conduc...

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: in the current prior art, the traditional Mars rover GNC system can only simulate the input and output of a single machine product, ignoring the influence of other physical quantities, which leads to the inability to conduct a comprehensive analysis of the Mars rover’s operating status. A physical model construction method for the Mars rover GNC system based on cyber-physical fusion

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