Space target track maneuvering fusion detection method for only space-based angle measurement tracking

Abstract

The invention discloses a space target track maneuvering fusion detection method for only space-based angle measurement tracking. The space target track maneuvering fusion detection method comprises a detection quantity selection method and a hypothesis test method. The detection quantity selection method takes measurement information in state estimation as detection quantity. The hypothesis test method performs hypothesis test by use of five test methods, namely, an X<2> test method, a skewness-kurtosis test method, a Jarque-Bera method, a Kolmogorov-Smirnov method, and a Lilliefors method. The space target track maneuvering fusion detection method further comprises a weighted fusion detection method. Linear weighted fusion is performed on the detection results of the five test methods to get a linear weighted detection fusion result. When the detection fusion result is greater than or equal to a maneuvering detection judgment threshold V-horizontal line, it can be judged that orbital maneuver occurs to a space target. According to the invention, the advantages of a variety of hypothesis test methods are fully utilized, the success rate of space target track maneuvering detection is improved, the detection result of a short detection window is improved, the demand for the length of a detection window is reduced, and the redundancy and robustness of the system are improved.

Description

technical field [0001] The invention belongs to the technical field of space target tracking, and in particular relates to a space target orbit maneuver fusion detection method which only uses space-based angle measurement to track. Background technique [0002] Space situational awareness technology uses the measurement information of space targets to determine their status, attributes and intentions. It is the main response and prevention means for space security issues at present. One of its important contents is the real-time and accurate estimation of the motion state of space objects and the change of motion state. fast and accurate detection. From the perspective of information acquisition means of space targets, space-based observations have been highly valued and widely used in recent years because they are not restricted by ground illumination, meteorological and geographical conditions, such as the US Space-Based Space Surveillance System (SBSS) and orbital deep s...

AI Technical Summary

Problems solved by technology

Therefore, on the one hand, the research on maneuver detection of space targets mainly focuses on targets in the atmosphere such as aircraft and missiles.

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