Method for locating non-cooperative wireless signal source based on high-rail three-satellite time-difference system

Abstract

The invention discloses a method for locating a non-cooperative wireless signal source based on a high-rail three-satellite time-difference system. The method for locating the non-cooperative wireless signal source based on the high-rail three-satellite time-difference system is achieved through a high-rail signal detecting-receiving locating constellation and a ground system, wherein the high-rail signal detecting-receiving locating constellation is deployed above a particular region and is composed of three satellites which run in an inclined geosynchronous small-eccentricity elliptical orbit, the three satellites have the same circular ground track, the constellation is provided with an equilateral stable triangular configuration and thousands of kilometers of inter-satellite baselines which are even and stable, each satellite conducts real-time and continuous detection and receiving on radar signals or communication signals transmitted by the ground non-cooperative wireless signal source, signal detection and parameter measurement are respectively finished, a satellite-ground link arranged on each satellite so that measurement information can be transmitted downward to the ground system in real time, and the ground system conducts processing and resolving according to the time difference of signal detection and receiving among the three satellites. The high-rail three-satellite time-difference system is adopted so that locating of the non-cooperative wireless signal source can be achieved. The method for locating the non-cooperative wireless signal source based on the high-rail three-satellite time-difference system has the remarkable advantages of being large in coverage area, strong in real-time performance, stable in locating precision and the like.

Description

Technical field [0001] The invention relates to a non-cooperative radio signal source positioning method based on a high-orbit Samsung time difference system, in particular to a wide-area real-time stable positioning method of a non-cooperative radio signal source based on the high-orbit Samsung time difference system, belonging to the technical field of electronic reconnaissance. Background technique [0002] The location determination of non-cooperative radio signal sources is of great significance for radio frequency resource management and avoiding mutual interference between different radio equipment. Achieving larger coverage, better real-time performance, and more stable positioning accuracy has become a non-cooperative radio signal The development trend of source positioning technology. Currently, the positioning of non-cooperative radio signal sources is mainly carried out by space-based electronic reconnaissance methods. The positioning system includes single-satellite ...

AI Technical Summary

Problems solved by technology

The positioning accuracy of the single-satellite angle-finding and direction-finding positioning system is limited, and the multi-satellite time difference positioning system has only been applied to low-orbit electronic reconnaissance satellites for a long time. Due to the limitation of the overhead time for signal source positioning, the coverage, real-time, Limited precision stability

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