Low-low tracking gravity measurement satellite semi-physical simulation system
A low-low tracking gravity and semi-physical simulation technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of multiple types of data, strong correlation, high precision, etc., and achieve the effect of improving the efficiency of data simulation
Active Publication Date: 2016-04-13
西安测绘研究所 +1
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The satellite-ground data of low- and low-tracking gravity measurement satellites include observation data such as K-band rangefinders, global satellite navigation receivers, accelerometers, and star sensors, as well as state data such as satellite attitude, temperature, and pressure, as well as ground gravity measurements, Auxiliary data such as global satellite navigation system reference stations, laser observation stations, and ground measurement and control receiving stations have many types, high precision, and strong correlation, making it difficult to process and evaluate
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[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0034] see figure 1 , the present invention comprises simulation management controller, is used for inputting initial parameter, and controls satellite emulator state; Two satellite emulators, described satellite emulator comprises: attitude-orbit controller, actuator, load emulator and data collector , the load simulator is used to simulate the in-orbit operation of two low-orbit gravity satellites, and generates the original simulation observation data of the satellite, including four kinds of load data of GNSS data, accelerometer data, KBR data and star sensor generated by simulation; the data acquisition The controller is used to collect the original simulation data generated by the load simulator, and the attitude-orbit controller is used to collect the sensor data signals in the satellite simulator, adjust the attitude and orbit of the satellite simulat...
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The invention belongs to the technical field of satellite gravity measurement, and specifically relates to a low-low tracking gravity measurement satellite semi-physical simulation system. A simulation management controller is used for inputting initial parameters and controlling states of satellite simulators; the two satellite simulators comprise attitude and orbit controllers, execution mechanisms, load simulators and data collectors, wherein the load simulators are used for simulating in-orbit operation of satellites and generating original simulation observation data of the satellites; the data collectors are used for acquiring the original simulation data generated by the load simulators, and the attitude and orbit controllers are used for collecting sensor data signals in the satellite simulators, adjusting the attitude and the orbits of the satellite simulators and controlling the execution mechanism to realize attitude adjustment; and a data transmission controller is used for performing framing and storage on the data transmitted by the two satellite simulators, and transmitting the data into a data processing system for processing the simulation data. The low-low tracking gravity measurement satellite semi-physical simulation system realizes simulation in a gravity satellite star data semi-physical simulation environment and substantially improves the simulation efficiency of satellite gravity data.
Description
technical field [0001] The invention belongs to the technical field of satellite gravity measurement, in particular to a low-low tracking gravity measurement satellite semi-physical simulation system. Background technique [0002] The 21st century is a new era in which human beings use satellite tracking satellite (SST) and satellite gravity gradient (SGG) technology to improve their cognition of the earth, moon, Mars and other planets in the solar system. The successful launch of the earth gravity measurement satellites CHAMP and GRACE, GOCE and the upcoming launch of GRACEFollow-On and the lunar gravity exploration satellite GRAIL indicate that mankind will usher in an unprecedented era of satellite gravity detection. The gravitational field of the earth (moon) and its time variation reflect the spatial distribution, movement and change of the surface and internal materials of the earth (moon), and at the same time determine the fluctuation and change of the geoid. Theref...
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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 肖云李瑞锋刘晓刚李达
Owner 西安测绘研究所