Multi-wireless link joint calculating spread spectrum measurement and control equipment zero value method

Abstract

The invention discloses a multi-wireless link joint calculating spread spectrum measurement and control equipment zero value method, and aims to provide a high-precision spread spectrum measurement and control equipment zero value calibration method. According to the technical scheme, the multi-wireless link joint calculating spread spectrum measurement and control equipment zero value method comprises the steps that the distance between the ground measurement and control equipment antenna phase center and the satellite responder antenna phase center, the distance between the ground measurement and control equipment phase center and the zero calibration spectrum changing equipment antenna phase center and the distance between the satellite responder antenna phase center and the zero calibration spectrum changing equipment antenna phase center are separately measured through geodetic measurement equipment; the spread spectrum distance measurement among three wireless links of ground measurement and control equipment and a responder, the ground measurement and control equipment and zero calibration spectrum changing equipment and the responder and the zero calibration spectrum changing equipment are separately completed; and an observation equation of three distance measurement is constructed according to the spread spectrum distance measurement among three wireless links, and ahigh-precision equipment zero value of the spread spectrum distance measurement is obtained by using the observation equation of the three distance measurement to jointly calculate a ground measurement and control equipment zero value, a zero calibration spectrum changing equipment zero value and a responder zero value.

Description

technical field [0001] The invention relates to a method for measuring the zero value of high-precision spread spectrum measurement and control equipment based on joint calculation of multiple wireless links. Background technique [0002] The high-precision positioning of high-orbit satellites requires the measurement and control equipment (including ground measurement and control equipment and satellite transponders) to be calibrated to the centimeter level. With the increasing requirements for positioning accuracy in space missions, the zero-value accuracy of transponders and ground stations has become an important indicator of equipment. Because the zero value of the transponder and the ground station is inaccurate, it will directly lead to the decline of the positioning accuracy of the spacecraft. If in the development stage, the equipment zero value of the transponder and the ground station is not accurately measured, then during the flight, the change of the zero valu...

AI Technical Summary

Problems solved by technology

In summary, there is currently a lack of high-precision zero-value measurement methods for transponders and ground measurement and control equipment

Images