Positioning parameter estimation method, apparatus, device, storage medium and program product

A technology for positioning parameters and rotating positions, applied in the field of positioning, can solve problems such as array antenna mutual coupling errors and baseline layout errors, and achieve the effects of reducing computational complexity, improving accuracy, and eliminating mutual coupling errors

Active Publication Date: 2022-07-15
PURPLE MOUNTAIN LAB
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Problems solved by technology

However, the two-dimensional estimation based on the two-dimensional MUSIC algorithm cannot solve the influence of factors such as mutual coupling errors in the array antenna, baseline layout errors, and layout platform reflections on the calculation results.

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  • Positioning parameter estimation method, apparatus, device, storage medium and program product
  • Positioning parameter estimation method, apparatus, device, storage medium and program product
  • Positioning parameter estimation method, apparatus, device, storage medium and program product

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[0073] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0074] Parameter estimation of targets, such as joint range and two-dimensional estimation of angle of arrival (DoA), is an important content in the field of array signal processing. For the two-dimensional parameter estimation of joint target distance and angle, there are classical methods such as sparse reconstruction algorithm based on solving optimization problems, and positioning algorithms such as Spotfi based on two-dimensional MUSIC algorithm are also proposed. However, these methods either require eigenvalue decomposition of large matrices and intensive spectr...

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Abstract

The present application relates to a positioning parameter estimation method, apparatus, device, storage medium and program product. The method includes: acquiring an array received signal of a target terminal, and determining a signal subspace corresponding to the array received signal; determining a coefficient matrix according to the signal subspace and a predetermined extended sampling matrix, wherein the extended sampling matrix is ​​used for Characterize the attribute characteristics of the antenna array in the base station; determine the spectral peak corresponding to the coefficient matrix, and obtain the positioning parameter of the target terminal according to the spectral peak. By adopting the method, the calculation efficiency of the terminal positioning parameter can be improved.

Description

technical field [0001] The present application relates to the field of positioning technology, and in particular, to a positioning parameter estimation method, apparatus, device, storage medium and program product. Background technique [0002] With the continuous development of science and technology, positioning technology has been widely used in life. The positioning process of the terminal by a single base station is mainly realized by estimating two-dimensional parameters of the terminal. Specifically, the distance and azimuth angle of the terminal are calculated according to the received signal of the array received by the terminal, so as to realize the two-dimensional parameter estimation of the terminal. In the traditional technology, the two-dimensional MUSIC algorithm is usually used to estimate the two-dimensional parameters of the distance and azimuth of the terminal, so as to realize the positioning of the terminal by a single base station. However, the two-di...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/08G01S3/16H04W64/00
Inventor 刘升恒黄永明曹瑞松郑旺刘梦琦齐望东
Owner PURPLE MOUNTAIN LAB
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