Interplanetary autonomous navigation ground test verification system based on information fusion

Abstract

The invention discloses an interplanetary autonomous navigation ground test verification system based on information fusion. The interplanetary autonomous navigation ground test verification system comprises a navigation sensor, a dynamic celestial body simulator, an X-ray pulsar signal simulator, a navigation calculation module, a shading cover, a simulation main control module and a mechanical turntable, wherein the navigation sensor is arranged on the mechanical turntable; the simulation main control module sends an instruction to the navigation calculation module; the navigation calculation module receives the instruction, controls the navigation sensor to image a celestial body image generated by the dynamic celestial body simulator and sends a celestial body imaging result to the navigation calculation module; the navigation calculation module receives the imaging result and then calculates position information of a spacecraft; and furthermore, the navigation calculation module also calculates the position information of the spacecraft according to a received pulse signal of the X-ray pulsar signal simulator and calculates the position information of the spacecraft by an information fusion algorithm. By the interplanetary autonomous navigation ground test verification system, the authenticity and the reliability of ground simulation verification of an autonomous interplanetary navigation technology are improved.

Description

technical field [0001] The invention relates to a ground test verification system for interstellar autonomous navigation based on information fusion, which belongs to the field of physical simulation of interstellar autonomous navigation. Background technique [0002] Interstellar navigation is to determine the orbital information of the spacecraft through sensors, and the navigation of existing spacecraft is mostly completed by ground equipment. With the needs of the development of interstellar exploration of spacecraft, the traditional navigation method relying solely on ground station measurement and control orbit determination will inevitably face problems such as insufficient space-ground communication link capacity and limited measurement distance. Therefore, interstellar autonomous navigation technology has received widespread attention. [0003] The interstellar autonomous navigation technology uses the measurement equipment on the spacecraft to determine the positio...

AI Technical Summary

Problems solved by technology

[0004] The existing navigation mathematical simulation methods can no longer meet the needs of ground simulation verification of autonomous navigation technology. All signal simulations use mathematical models, and the effectiveness of the simulation is difficult to guarantee. There is an urgent need for sensors with hardware in the loop, high simulation accuracy, and real working conditions. Interstellar autonomous navigation ground test verification system

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