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Multi-base-station target positioning method based on single-satellite radiation source

A target positioning and radiation source technology, applied in the field of wireless mobile communication, can solve the problem of low accuracy of target position

Active Publication Date: 2020-06-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-base station target positioning method based on a single-satellite radiation source, aiming to solve the problem of low precision in solving target positions by using existing algorithms to establish nonlinear equations

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  • Multi-base-station target positioning method based on single-satellite radiation source
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Embodiment Construction

[0066] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0067] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...

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Abstract

The invention discloses a multi-base-station target positioning method based on a single-satellite radiation source. The multi-base-station target positioning method comprises the following steps: establishing a multi-base-station positioning model about a flight target by utilizing known observation data; linearizing a nonlinear flight target positioning equation set by introducing additional variables; utilizing least square estimation to obtain initial estimation of a target; and constructing a weighted least square estimation expression about an error term by using a Taylor series expansion method, so that the estimation precision of the target position is further improved. Therefore, a single-star radiation source can be used as an external radiation source to position the flight target based on multiple base stations.

Description

technical field [0001] The invention relates to the technical field of wireless mobile communication, in particular to a multi-base station target positioning method based on a single-satellite radiation source. Background technique [0002] The external radiation source radar positioning system is a positioning system with great development potential. Different from the traditional active radar, the external radiation source radar system only includes a receiving device but not a transmitting device, and uses a third-party non-cooperative radiation source to transmit signals to detect the monitoring area. There are many types of third-party signals that can be used by the external radiation source positioning system, such as analog TV signals, digital video broadcast signals, cellular base station signals, and satellite navigation signals. Since the transmitting end and the receiving end are not in the same direction, it can better locate low-altitude targets and stealth t...

Claims

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Application Information

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IPC IPC(8): G01S13/06G01S13/50G01S13/00G01S5/02
CPCG01S13/06G01S13/50G01S13/003G01S5/02
Inventor 张弘旺郑植张顺生王文钦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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