Fault photo-detection method for earth synchronous transfer orbit satellite in orbit

Abstract

The invention is a photoelectric detection method for a satellite fault in a geostationary transfer orbit. The method comprises: acquiring a light curve of the satellite in the geostationary transfer orbit by an optical telescope detection system; obtaining an OCS value of a target through analyzing a phase angle sequence light characteristic curve, to evaluate the unfolding state of a solar panel of the satellite; obtaining an angular spin rate of the target through analyzing a time sequence light characteristic curve, to evaluate satellite platform attitude control capacity; and evaluating satellite platform attitude regulation and control capacity through accumulating multi-circle satellite phase angle sequence light characteristic curve, so as to evaluate satellite fault state and provide possibility of rescuing the satellite in time. The method does not depend on a sensor and downlink communication data of the satellite system, and has the property of passive receiving, and characteristics of high sensitivity, high precision, long detection distance, capability of observing in real time, quick data processing and so on.

Description

technical field [0001] The invention relates to a photoelectric detection method for a geosynchronous transfer orbit (GTO) on-orbit satellite fault, in particular to a photoelectric detection method for real-time and reliable evaluation of satellite fault status by using the observation of a telescope photoelectric detection system. Background technique [0002] Since human beings started space activities in the 1950s, despite the rapid development of space technology, the failure of launching satellites still occurs frequently. The highest failure rate is the launch phase, and there is a time limit for troubleshooting during the launch phase. Once the time limit is exceeded, the satellite becomes space junk, causing losses in the hundreds of millions. This puts forward higher requirements for fault detection and rescue during satellite launch. [0003] At present, the characteristic identification of low-orbit satellites is mainly to use sensors such as radar to obtain the...

AI Technical Summary

Problems solved by technology

The medium and high orbit satellites are 20,000 kilometers to 36,000 kilometers away from the earth. Due to the relationship between the radar detection signal and the distance r -4 It is directly proportional to the influence of ground clutter and atmospheric loss, as well as the limitation of its own power and working wavelength, which is generally difficult to achieve

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