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A signal processing method and device

A signal processing and signal technology, applied in the field of communication, can solve the problems affecting multi-antenna system communication, multi-channel signals cannot be synchronized, abnormal, etc., and achieve the effect of reducing communication abnormality and inability to achieve synchronization

Active Publication Date: 2019-02-12
大唐联诚信息系统技术有限公司
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  • Claims
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Problems solved by technology

Since the signal interference characteristics of the interfering signal outside the system are usually different from those of the useful signal, it may cause the multi-channel signals received by the multi-antenna system to be out of synchronization, thus affecting the abnormal communication of the multi-antenna system

Method used

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  • A signal processing method and device
  • A signal processing method and device
  • A signal processing method and device

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0042] The signal processing method of the embodiment of the present application processes the received superimposed signal based on the condition that the interference signal and the useful signal have poor correlation and the arrival direction angle has a certain difference. For example, the multiple signal classification (MUSIC, Multiple signal Classification) algorithm can be used to obtain the optimal reception shaping vectors corresponding to...

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Abstract

The present invention provides a signal processing method and apparatus. The method includes the steps of sampling multiple signals received by a multi-antenna system; performing autocorrelation on an array formed by the multiple sampled signals so as to obtain an autocorrelation array; in a case in which multiple feature values of the autocorrelation array are used as powers of multiple to-be-determined signal sources, determining a noise interference space of each to-be-determined signal source; performing peak searching in the noise interference space of each to-be-determined signal source, so as to determine an optimal direction vector of each to-be-determined signal source; and for each optimal direction vector, performing forming on the multiple signals by using the optimal direction vector, and determining one of the multiple formed signals that is mostly correlated with a preset pilot signal as a formed signal of a signal sent by an actual signal source in the optimal direction vector. According to the method, conditions that multiple signals received by the multi-antenna system cannot be synchronized are reduced, and communication abnormalities of the multi-antenna system are lowered.

Description

Technical field [0001] This application relates to the field of communication technology, and more specifically to a signal processing method and device. Background technique [0002] With the development of wireless communication technology, the electromagnetic environment is becoming more and more complex. In the working frequency band of the communication system, there may be interference outside the system, that is, interference in different directions from the useful signal. Since the signal interference characteristics of the interference signal outside the system are usually different from the useful signal, this may cause the multi-channel signals received by the multi-antenna system to be unable to synchronize, thereby affecting the abnormal communication of the multi-antenna system. Therefore, how to determine the useful signal received by the multi-antenna system when the multi-antenna system has signal interference from different directions, and then realize the synch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H04B7/06H04J11/00H04W56/00
CPCH04B7/0408H04B7/0617H04J11/0063H04W56/0005Y02D30/70
Inventor 苏加加杨远曹晏波乔元新
Owner 大唐联诚信息系统技术有限公司
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