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Ground-based positioning method, device, equipment and medium based on antenna distance constraints

A technology of distance constraints and positioning methods, which is applied in positioning, measuring devices, wireless communication, etc., and can solve problems such as insufficient positioning accuracy, inability to achieve precise positioning, and lack of effective observations from antennas

Active Publication Date: 2022-06-28
北京瑞迪时空信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the positioning accuracy of the existing land-based positioning method is not accurate enough. Sometimes a certain antenna will lack effective observations. In this case, accurate positioning cannot be achieved.

Method used

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  • Ground-based positioning method, device, equipment and medium based on antenna distance constraints
  • Ground-based positioning method, device, equipment and medium based on antenna distance constraints
  • Ground-based positioning method, device, equipment and medium based on antenna distance constraints

Examples

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Embodiment 1

[0092] figure 1 A flow chart of a ground-based positioning method based on antenna distance constraints according to an embodiment of the present invention is shown. figure 2 Another flowchart of a ground-based positioning method based on antenna distance constraints according to an embodiment of the present invention.

[0093] combine figure 1 and figure 2 As shown, the ground-based positioning method based on antenna distance constraints includes:

[0094] Step 1: Obtain the distance between the first receiving antenna and the second receiving antenna;

[0095] Step 2: respectively obtaining multiple observations of the first receiving antenna and multiple observations of the second receiving antenna;

[0096] Step 3: Establish a positioning equation system based on multiple observation quantities of the first receiving antenna and the second receiving antenna and the distance between the first receiving antenna and the second receiving antenna;

[0097] Step 4: Accor...

Embodiment 2

[0105] image 3 A block diagram of a ground-based positioning device based on antenna distance constraints according to an embodiment of the present invention.

[0106] like image 3 As shown, the ground-based positioning device based on antenna distance constraints includes:

[0107] a distance obtaining unit 102, obtaining the distance between the first receiving antenna and the second receiving antenna;

[0108] an observation quantity obtaining unit 104, respectively obtaining multiple observation quantities of the first receiving antenna and multiple observation quantities of the second receiving antenna;

[0109] The positioning equation group establishing unit 106, based on the multiple observation quantities of the first receiving antenna and the second receiving antenna and the distance between the first receiving antenna and the second receiving antenna, establishes a positioning equation group;

[0110] Judging unit 108, according to the number of observations of...

Embodiment 3

[0118] The present disclosure provides an electronic device comprising: a memory storing executable instructions; and a processor running the executable instructions in the memory to implement the above-mentioned ground-based positioning method based on antenna distance constraints.

[0119] An electronic device according to an embodiment of the present disclosure includes a memory and a processor.

[0120] The memory is used to store non-transitory computer readable instructions. In particular, memory may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache), among others. The non-volatile memory may include, for example, read only memory (ROM), hard disk, flash memory, and the like.

[0121] The processor may be a central processing unit (CPU) or other form of pr...

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Abstract

The invention discloses a land-based positioning method, device, equipment and medium based on antenna distance constraints. The method includes: obtaining the distance between the first receiving antenna and the second receiving antenna; obtaining multiple observations of the first receiving antenna respectively and the multiple observations of the second receiving antenna; based on the multiple observations of the first receiving antenna and the second receiving antenna and the distance between the first receiving antenna and the second receiving antenna, a set of positioning equations is established; according to the first receiving The number of observations of the antenna and the second receiving antenna is used to determine whether the positioning equations meet the solution conditions; when the solution conditions are met, the positioning equations are solved to obtain the position information of the first receiving antenna and the second receiving antenna. The ground-based positioning method based on the antenna distance constraint of the present invention takes the distance between the first receiving antenna and the second receiving antenna as a constraint condition, establishes a positioning equation group, and solves the positioning equation group to obtain accurate receiving antenna position information.

Description

technical field [0001] The invention belongs to the technical field of radio navigation and positioning, and in particular relates to a ground-based positioning method, device, equipment and medium based on antenna distance constraints. Background technique [0002] The ground-based positioning system is a radio positioning system designed based on improved pseudolite technology. It can achieve a regional positioning system with centimeter-level accuracy by deploying positioning base stations in the area to broadcast positioning signals and user terminals to receive and analyze positioning signals. It can provide high-precision positioning, speed measurement and timing services in a certain area when the satellite navigation system is unavailable. [0003] The ground-based positioning system dual-antenna receiver is a special receiver improved on the basis of the ground-based positioning system receiver for multi-point positioning, attitude measurement, etc. It can process d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00G06F17/12G01S5/14
Inventor 薛晓峰江城王欣
Owner 北京瑞迪时空信息技术有限公司