System and method for inter-satellite ranging of artificial satellites with on-orbit zero-value measurement function

Abstract

The invention discloses a man-made satellite inter-satellite ranging system having an on-orbit zero value measurement function. The system comprises a ranging device and a zero value measurement device, which are arranged on a satellite. The ranging device comprises a control and calculating module, a signal transmitting antenna, a signal reception antenna, a signal reception port and a signal output port. The zero value measurement device comprises a phase-locked frequency synthesizer, a first attenuation module, a frequency mixer, a filter, a second attenuation module, a first analog switch, a second analog switch and a power supply module. The invention also provides an on-orbit zero value measurement method of the man-made satellite inter-satellite ranging system. The inter-satellite ranging system and the on-orbit zero value measurement method can realize real-time on-orbit zero value measurement of the ranging system and free switching between a zero value compensation mode and a ranging mode, have good compatibility, and can meet zero value compensation requirements of the ranging systems of different wave bands.

Description

technical field [0001] The invention relates to the technical field of zero value measurement of inter-satellite distance measurement, in particular to an artificial satellite inter-satellite distance measurement system and method with the function of on-orbit zero value measurement. Background technique [0002] With the continuous development of aerospace technology, the functions of space systems are becoming more and more powerful. The tasks of large satellites can be completed by the cooperation of multiple small satellites with relatively single functions. With the characteristics of low cost, small size, light weight, short development cycle and high technical content, small satellites are playing an increasingly important role in the aerospace field. In the field of artificial satellite formation, the measurement of the relative distance of satellite formation units is the basis of formation cooperation, and the accuracy of ranging between satellites directly determi...

AI Technical Summary

Problems solved by technology

[0004] At present, the zero value measurement of the inter-satellite ranging method adopts the ground calibration method. The zero value calibrated by this method will include a long trace, which is far from the centimeter-level accuracy requirements, and the calibration method in the ground environment is not complete. Suitable for on-orbit environment

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