Moving target tracking method based on adaptive beam

An adaptive beam and moving target technology, applied in diversity/multi-antenna systems, space transmit diversity, electrical components, etc., can solve problems such as large system overhead, poor real-time performance, and decreased tracking accuracy, and achieve overcoming large time delays and improving Achievable speed and improved real-time effect

Pending Publication Date: 2022-03-22
XIDIAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, a moving target tracking method based on adaptive beams, which is used to solve the tracking accuracy caused by the high-speed movement of the moving target when beam training is used to track the moving target. The problem of decline, as well as the problem of large system overhead and poor real-time performance

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  • Moving target tracking method based on adaptive beam
  • Moving target tracking method based on adaptive beam
  • Moving target tracking method based on adaptive beam

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Refer to attached figure 1 , the present invention comprises the following steps:

[0032] Step 1), build a moving target tracking scene:

[0033] Establish a three-dimensional coordinate system with the base station as the origin of the coordinates. The moving targets are distributed in the three-dimensional space and can communicate with the base station. The moving targets move in the three-dimensional space, and the base station emits adaptive beams to track them, ensuring that the moving targets communication quality;

[0034] Step 2), the base station determines the optimal beam orientation:

[0035] Step 2a), the base station obtains a plurality of historical motion trajectory data of the moving object, and uses the Kalman filter method to predict the motion trajectory S of the moving object within a time period by us...

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Abstract

The invention provides a moving target tracking method based on an adaptive beam, and aims to improve the tracking precision of a base station on a high-speed moving target and reduce the system overhead and time delay, and the method comprises the following implementation steps: constructing a moving target tracking scene, predicting the movement track of the moving target by the base station, and determining the optimal beam orientation; the base station calculates the optimal beam width, the base station calculates the number of code words in the codebook according to the optimal beam width and generates the codebook, the base station conducts self-adaptive adjustment on the beam, and the base station obtains the tracking result of the moving target. According to the invention, tracking is carried out by using the adaptive wave beam, so that the problem that the tracking precision is reduced due to sharp increase of the training frequency under the condition that the speed of the moving target is relatively high is avoided, the problems of high system overhead and long time delay in the prior art are solved, and the real-time performance of wave beam tracking is further improved.

Description

technical field [0001] The invention belongs to the technical field of beam tracking, and relates to a moving target tracking method based on an adaptive beam in the technical field of millimeter wave beam tracking, which can be used for real-time beam alignment of a moving target by a base station to improve communication quality. Background technique [0002] The millimeter-wave communication system can provide a huge transmission bandwidth, but the path loss of the millimeter-wave signal is quite large when it propagates in free space, so a large-scale antenna array is required to make the transmitting end and the receiving end concentrate the energy of the transmitted signal on a certain point. In terms of direction, a narrow beam is used to achieve directional transmission and reception to effectively compensate for the huge path loss of millimeter waves. This directional transmission technology is called beamforming. However, the problem of using narrow beams is also o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/28H04B7/0408H04B7/0456H04B7/06H04B7/08
CPCH04W16/28H04B7/0408H04B7/0456H04B7/06H04B7/08
Inventor 郑阳梅金波盛敏李建东史琰刘俊宇
Owner XIDIAN UNIV
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