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Double-platform multiple radiation source direction-measuring time-measuring cross-positioning method

A multi-radiation source, cross-positioning technology, applied in positioning, measurement devices, radio wave measurement systems, etc., can solve problems such as complex algorithms, and achieve the effects of simple and effective algorithms, fast calculation speed, broad market prospects and application value

Inactive Publication Date: 2004-02-25
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The method of signal processing requires knowing some prior information of the signal, and positioning is carried out through the spectral correlation theory of the signal, blind separation algorithm, etc. The receiving device of the platform must use a uniform array, and the algorithm is complicated

Method used

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  • Double-platform multiple radiation source direction-measuring time-measuring cross-positioning method
  • Double-platform multiple radiation source direction-measuring time-measuring cross-positioning method
  • Double-platform multiple radiation source direction-measuring time-measuring cross-positioning method

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Embodiment Construction

[0019] In order to better understand the technical solutions of the present invention, the implementation manners of the present invention will be further described below in conjunction with the accompanying drawings. For the convenience of explaining the problem, the following assumptions are made here. These assumptions do not affect the essence of the algorithm, and the present invention can be easily extended to three-dimensional actual situations.

[0020] a. Observation platform and radiation source are in the same plane, such as XY plane;

[0021] b. Each measurement platform can normally receive the signals radiated by all radiation sources without clutter interference;

[0022] c. There is no overlapping of signals, that is, there are N targets, and N sets of data can be measured;

[0023] d. The data received by the two platforms have the same measurement accuracy and have been registered in time and space. 1. Measurement data collection

[0024] Under these assum...

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Abstract

The present invention relates to a double-platform multiradiant direction-measuring time-measuring cross-location method, main and auxiliary platforms can independently acquire data, every group of data includes azimuth of radiant and correspondent time mark, N radiants are formed into N*N crossing points, two platforms can form N*N groups of measured data correspondent to the crossing points, after every scanning period is completed, the data of auxiliary platform can be transferred into main platform by means of communication transmission to make mergence and implement optimum matching by calculating the nearness of data measured between two platforms, and the wrong position can be removed.

Description

Technical field: [0001] The invention relates to a cross positioning method with dual platforms, multi-radiation sources, direction measurement and time measurement during pure angle passive positioning, which is an infrared search and tracking system, a passive positioning system, an infrared early warning system, a large field of view target monitoring system, and an air traffic control system. It can be widely used in various military and civilian systems. Background technique: [0002] Accurate positioning of radiation sources is of great significance in many military and civilian systems. For military systems, it helps the use of precision strike weapons and provides a strong guarantee for the final destruction of the opponent; for civilian systems It can provide reliable services for radiation sources and play a role in safety guarantee. It plays an important role in navigation, aviation, aerospace, reconnaissance, measurement and control, rescue and geophysics. [0...

Claims

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Application Information

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IPC IPC(8): G01S5/16
Inventor 敬忠良胡洪涛胡士强
Owner SHANGHAI JIAO TONG UNIV
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