Dual-satellite time difference measurement direction-finding method and apparatus for aerial target positioning

A technology of air target and time difference, which is applied in the direction of measuring device, positioning, radio wave measurement system, etc., and can solve the problem of insufficient positioning system

Active Publication Date: 2014-04-23
36TH RES INST OF CETC
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  • Abstract
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Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a dual-star time-of-flight direction-finding method and dev

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  • Dual-satellite time difference measurement direction-finding method and apparatus for aerial target positioning
  • Dual-satellite time difference measurement direction-finding method and apparatus for aerial target positioning
  • Dual-satellite time difference measurement direction-finding method and apparatus for aerial target positioning

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[0073] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principle of the present invention.

[0074] Such as figure 1 as shown, figure 1 It is a schematic flow diagram of the main process of the method of the present invention, which may specifically include:

[0075] Step 101: The main star performs radio direction finding on the air target, and obtains direction finding vector information;

[0076] Step 102: measure the arrival time of the radio signal to the main star and the auxiliary star respectively, and compare the two arrival times to obtain time difference measurement information;

[0077] Step 103: Calculate the position information of the air target according to the direction finding vector information and the time difference measu...

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Abstract

The invention discloses a dual-satellite time difference measurement direction-finding method and apparatus for aerial target positioning. The direction-finding method comprises the following steps that: a primary satellite carries out radio direction finding on a target so as to obtain direction-finding vector information; time for arriving at the primary satellite and an auxiliary satellite by radio singles are respectively measured and the arrival time is compared so as to obtain time difference measurement information; and according to the direction-finding vector information and the time different measurement information, position information of the target is resolved. According to the dual-satellite time difference measurement direction-finding system, both the aerial target positioning and positioning of a ground target and a space target can be realized; and thus the provided method and the apparatus have high application values in the radio positioning field.

Description

technical field [0001] The invention relates to the technical field of radio positioning, in particular to a double-satellite time-difference direction-finding method and device applied to air target positioning. Background technique [0002] Modern warfare is an informationized warfare. Whoever can perceive the situation of the war first will have the initiative in the war. As one of the means of war situation awareness, radio reconnaissance technology plays an important role in modern warfare, especially the space-based radio reconnaissance system has wide coverage, high probability of interception, flexible layout, fast intelligence response, and cost-effectiveness. Advanced advantages have become the focus of competition among military powers. [0003] Using the space-based radio reconnaissance system, not only can obtain the radio characteristic information and intelligence information of the target, but also can locate the target and detect the law of the target's act...

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Application Information

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IPC IPC(8): G01S5/02
CPCG01S5/06
Inventor 朱建丰陆安南
Owner 36TH RES INST OF CETC
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