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Signal processing method and apparatus

A signal processing and signal technology, applied in the field of communication, can solve problems such as abnormality, affecting the communication of multi-antenna systems, and inability to synchronize multi-channel signals.

Active Publication Date: 2016-09-21
大唐联诚信息系统技术有限公司
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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

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  • Signal processing method and apparatus
  • Signal processing method and apparatus
  • Signal processing method and apparatus

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0042] The signal processing method in the embodiment of the present application processes the received superimposed signal based on the condition that the interfering signal and the useful signal have poor correlation and a certain difference in direction of arrival. For example, multiple signal classification (MUSIC, Multiple signal Classification) algorithm can be used to obtain optimal receiving shaping vectors corresponding to signals in different directions; then, several colum...

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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] The present application relates to the technical field of communications, 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 a different direction from the useful signal. Since the signal interference characteristics of the interfering signal outside the system are usually different from the useful signal, it may cause the multi-channel signals received by the multi-antenna system to be out of synchronization, thereby affecting the abnormal communication of the multi-antenna system. Therefore, in the case of signal interference from different directions in the multi-antenna system, how to determine the useful signal received by the multi-antenna system, and ...

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Application Information

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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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