Blind beam pointing spatial filtering processing method, device and equipment

A technology of spatial filtering and processing method, which is applied in the field of communication and can solve problems such as performance deterioration of beamformers

Active Publication Date: 2020-06-12
BEIJING BDSTAR NAVIGATION CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The adaptive beamforming algorithm of the related art is very sensitive to the direction of arrival of the desired signal and the array prevailing vector. When the estimated direction vector of the desired signal is slightly different from the direction vector of the actual signal, the performance of the beamformer will be seriously deteriorated.

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  • Blind beam pointing spatial filtering processing method, device and equipment
  • Blind beam pointing spatial filtering processing method, device and equipment
  • Blind beam pointing spatial filtering processing method, device and equipment

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Embodiment Construction

[0060] The application describes a number of embodiments, but the description is illustrative rather than restrictive, and it will be obvious to those of ordinary skill in the art that within the scope of the embodiments described in the application, There are many more embodiments and implementations. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Except where expressly limited, any feature or element of any embodiment may be used in combination with, or substituted for, any other feature or element of any other embodiment.

[0061] This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of this application can also be combined with any conventional features or elements to form unique inventive solutions as defined by the clai...

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Abstract

The invention discloses a blind beam pointing spatial filtering processing method, device and equipment and a computer readable storage medium, and the method comprises the steps: determining a samplecovariance matrix according to an input signal of a space-time filter; searching an optimal expected signal space-time steering vector under spherical constraint, and determining a constraint matrixaccording to the optimal expected signal space-time steering vector; determining a space-time adaptive filtering coefficient according to the sample covariance matrix and the constraint matrix; and performing filtering processing on the input signal by using the space-time adaptive filtering coefficient. According to the embodiment of the invention, the optimal expected signal space-time steeringvector is obtained under the spherical constraint, broadband beam forming under an unexpected signal prior condition is realized, and the robustness of beam forming is enhanced.

Description

technical field [0001] This article relates to the field of communication, in particular to a blind beam pointing spatial filtering processing method, device, equipment and computer-readable storage medium. Background technique [0002] In order to suppress strong interference in a complex electromagnetic environment, array antenna beamforming technology is widely used in spread spectrum communication systems. [0003] Adaptive beamforming technology often requires prior knowledge such as the direction of the expected signal, but the prior knowledge of the expected signal and array channel error cannot be obtained in the array application environment. [0004] CAB (The performance of Cyclic Adaptive Beamforming, Cyclic Adaptive Beamforming) blind beamforming algorithm first estimates the corresponding direction vector by using the cyclostationary characteristics of the desired signal, and then uses various beamforming techniques to complete CAB blind beamforming. For exampl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08H04L25/03
CPCH04B7/0617H04B7/086H04B7/0854H04L25/0328Y02D30/70
Inventor 任超郑永翔占瞻
Owner BEIJING BDSTAR NAVIGATION CO LTD
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