Method for selecting receiving stations of multi-point positioning system

A multi-point positioning and receiving station technology, applied in positioning, radio wave measurement systems, measuring devices, etc., can solve the problem of huge amount of calculation, and achieve the effect of reducing quantity, reducing calculation amount and information redundancy

Active Publication Date: 2011-04-06
AVIATION DATA COMM +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, there are at least the following problems in the prior art: Although in principle, the multilateration technology only needs 3 receiving stations to determine the position of the surveillance target, but in practical applicati...

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  • Method for selecting receiving stations of multi-point positioning system
  • Method for selecting receiving stations of multi-point positioning system
  • Method for selecting receiving stations of multi-point positioning system

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] figure 2 It is a flow chart of an embodiment of the method for selecting a receiving station of the multipoint positioning system of the present invention. As shown in the figure, the method includes the following steps:

[0024] Step 101, measure the included angle between two adjacent receiving stations relative to the monitoring target...

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Abstract

The invention provides a method for selecting receiving stations of a multi-point positioning system, which comprises the following steps: measuring included angles between each two adjacent receiving stations relative to a monitored target; selecting two receiving stations between which a minimum included angle is formed as two stations to be tested; and deleting one of the two stations to be tested, so that the absolute value of the D-value between an optimal included angle theta and an included angle between the other station to be tested and a station adjacent to the other station to be tested is smaller, wherein theta is equal to 2 pi/K, and K refers to the number of the selected receiving stations; and repeating the steps until the number of the remaining included angle is K. By using the method of the invention, receiving stations in appropriate umber can quickly be selected out, thereby reducing the number of the receiving stations participating in calculation on the premise of guaranteeing the positioning accuracy, and thus reducing the calculated amount and the information redundancy.

Description

technical field [0001] The invention relates to a method for selecting a receiving station of a multipoint positioning system, and belongs to the technical field of wireless multipoint positioning for airport scene target monitoring. Background technique [0002] Existing airport surface surveillance relies on radar echo detection of moving targets (such as aircraft) to calculate the position of the target to achieve surveillance. Due to multipath effects, ground object reflection, airport reconstruction and expansion, weather, terrain and obstacles, etc., some key areas of the airport will not be able to achieve radar coverage. Abbreviation: MLAT) technology, its positioning principle is as follows: figure 1 shown. [0003] At least three ground receivers F1, F2 and F3 are visible within line-of-sight to the surveillance target. First, the receivers F1, F2 and F3 continuously send inquiry signals to the monitoring target; the monitoring targets reply the response signals...

Claims

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Application Information

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IPC IPC(8): G01S5/00
Inventor 刘伟朱衍波张军裴新欣王永春
Owner AVIATION DATA COMM
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