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High-precision single-station three-dimensional positioning method based on multiple antennas

A three-dimensional positioning and multi-antenna technology, applied in antennas, electrical components, etc., can solve the problem of high cost, achieve low single-station three-dimensional positioning, wide application prospects, and suppress the effects of multipath

Active Publication Date: 2019-03-01
成都旸谷信息技术有限公司
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  • Application Information

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Problems solved by technology

[0005] At present, the relatively mature ultra-wideband positioning technology UWB with the highest positioning accuracy can usually achieve a positioning accuracy of te

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  • High-precision single-station three-dimensional positioning method based on multiple antennas
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  • High-precision single-station three-dimensional positioning method based on multiple antennas

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing:

[0026] Aiming at the above shortcomings of the existing technology, the present invention proposes a low-cost, high-precision single-station three-dimensional positioning technology applicable to various signal systems such as WiFi, 5G, and UWB. Based on a multi-antenna array, the three-dimensional Angle of arrival and propagation delay realize high-precision single-station three-dimensional positioning.

[0027] The sample of the antenna array receiving signal vector adopted by the present invention is generally expressed as: an array of arbitrary distribution (2D plane or 3D) of M array elements, and a narrowband signal s(t) passes through L multipath reflection far-field incident arrays, when The delays (TDs) are t 1 ,L,t L , the incident azimuth is q 1 ,L,q L , the pitch angle is f 1 ,L,f L . Then the mth array element at time t n The output of can be expressed ...

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Abstract

The invention discloses a high-precision single-station three-dimensional positioning method based on multiple antennas. The method comprises the steps of estimating a positional parameter by use of ajoint measurement method of a pitch angle, an azimuth angle and time delay; and estimating and separating a multi-path signal which greatly influences a positional precision by combining the pitch angle, the azimuth angle and the time delay. Thus, the multi-path influence is inhibited, the estimation precision of the positional parameter is improved, and high-precision single-station three-dimensional positioning is further implemented. The method is suitable for multiple signal systems such as WiFi (Wireless Fidelity), 5G (5th Generation Wireless System) and UWB (Ultra Wide Bandwidth), is capable of implementing low-cost single-station three-dimensional positioning and has wide application prospects in the fields such as smart city, smart construction, indoor navigation, on-demand marketing of a shopping mall, security monitoring management and lost prevention.

Description

technical field [0001] The present invention relates to a wireless signal single-station three-dimensional positioning method in the technical field of array signal processing, in particular to a single-station positioning method based on multi-antenna arrays for joint estimation of wireless signal three-dimensional arrival angle (azimuth angle, elevation angle) and time difference, It is used for 3D angle of arrival and transmission delay estimation of signal sources in the case of multi-antenna arrays at the base station to achieve single-station 3D positioning. Background technique [0002] In recent years, indoor positioning and location-based services have shown a huge market space, and have been widely used in indoor navigation, on-demand marketing in shopping malls, smart cities, security monitoring management, and loss prevention. According to a recent report released by market research firm ABI, by 2018, the global indoor positioning market will reach $5 billion. A...

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Application Information

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IPC IPC(8): H01Q3/22
CPCH01Q3/22
Inventor 文飞宋文斌魏新柳祚飞郑望贤彭笛
Owner 成都旸谷信息技术有限公司