Ground radiation source single-satellite positioning method based on signal intensity multi-beam spatial distribution

A technology of ground radiation and spatial distribution, applied in satellite radio beacon positioning systems, radio wave measurement systems, measurement devices, etc., can solve problems such as difficult implementation, high launch cost, and high resource consumption on the star, and achieve easy implementation, The effect of low launch cost and low resource consumption on the planet

Active Publication Date: 2016-05-18
PLA UNIV OF SCI & TECH
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Problems solved by technology

[0005] In short, the existing satellite radiation source positioning technology has the following problems: the single-satellite radiation source positioning m

Method used

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  • Ground radiation source single-satellite positioning method based on signal intensity multi-beam spatial distribution
  • Ground radiation source single-satellite positioning method based on signal intensity multi-beam spatial distribution
  • Ground radiation source single-satellite positioning method based on signal intensity multi-beam spatial distribution

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Embodiment Construction

[0028] Such as figure 1 As shown, the present invention is based on the single-satellite positioning method of the ground radiation source of signal strength multi-beam spatial distribution, comprising the following steps:

[0029] (10) Build direction picture Pointing model: according to the antenna direction picture function and the relationship between antenna gain and pitch angle and azimuth angle to construct antenna direction picture Point to the model.

[0030] The (10) build directions picture Pointing to the model steps include:

[0031] (11) Get the antenna direction picture Function: If the relationship between antenna gain and pointing is stored in the form of a database, the antenna direction is determined according to the database picture Fitting is performed to obtain the antenna directions of each beam of the spaceborne multi-beam antenna picture function; otherwise, according to the design characteristics and parameters of the multi-beam anten...

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Abstract

The invention discloses a ground radiation source single-satellite positioning method based on signal intensity multi-beam spatial distribution. The method includes following steps: (10) building an antenna directional diagram directional model according to an antenna directional diagram function and the connection between the antenna gain and the pitch angle and the azimuth; (20) determining a main reception beam and space-division co-frequency multiplexing beams thereof according to ground radiation signal characteristic parameters and intensity received by a satellite, and obtaining spatial distribution of the radiation signal intensity in a multi-beam environment according to the reception of a plurality of space-division co-frequency multiplexing beams with the highest radiation signal intensity; (30) establishing a directional equation set according to the antenna directional diagram directional model and the spatial distribution of the radiation signal intensity, solving the directional equation set, and obtaining radiation source position direction; and (40) obtaining the latitude and longitude of the ground radiation source with the combination of geographical information and ephemeris information according to the radiation source position direction. According to the single-satellite positioning method, the emission cost is low, the consumption of satellite resources is low, and the positioning precision is high.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a ground radiation source single-satellite positioning method based on signal strength multi-beam spatial distribution with low transmission cost, low consumption of on-board resources and high positioning accuracy. Background technique [0002] Due to the unique advantages of the satellite system, such as strong coverage, long transmission distance, no limitation of geographical conditions, and flexible maneuverability, the satellite system has gradually entered the civil and national defense fields, and has developed rapidly in the past few decades. development prospects. However, satellite mobile communication systems based on Geosynchronous Orbit (GEO) almost all use space-borne large-scale deployed multi-beam antennas. Due to the large antenna aperture, high receiving sensitivity, and the satellite is in an open space, GEO satellite communication systems are m...

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Application Information

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IPC IPC(8): G01S19/42
CPCG01S19/42
Inventor 张更新钟锡健王闯谢智东胡婧边东明孔博魏伍
Owner PLA UNIV OF SCI & TECH
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