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Method and device for signal recognition

A signal identification and signal technology, applied in the field of signal identification, can solve problems such as occupation, multi-system resources, and reduced signal quality.

Active Publication Date: 2022-07-01
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, if the current orthogonal decomposition (QR decomposition, QR) method is to improve the accuracy of signal recognition and system performance, it needs to increase the computational complexity of the system, thus occupying too many system resources, and to reduce the The computational complexity of the system needs to reduce the recognition accuracy of the signal accordingly, which will inevitably reduce the signal quality of the received signal

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  • Method and device for signal recognition
  • Method and device for signal recognition
  • Method and device for signal recognition

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of this specification clearer, the technical solutions of this specification will be clearly and completely described below in conjunction with specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present specification, but not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0048] The technical solutions provided by the embodiments of the present specification will be described in detail below with reference to the accompanying drawings.

[0049] figure 1 A schematic flowchart of a method for signal identification provided in this specification, including the following steps:

[0050] S101: Receive a quadrature modulation sig...

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Abstract

This specification discloses a signal identification method and device, the signal identification method includes: receiving a quadrature modulation signal sent by a transmitter; demodulating the quadrature modulation signal to obtain a demodulated signal; The demodulated signal and the channel information corresponding to the demodulated signal are determined, and the symbol corresponding to the quadrature modulation signal is determined as the symbol to be identified; the deviation between the symbol and each reference symbol on the signal component is determined, and according to the According to the deviation, the sorting result of each reference symbol is obtained; according to the sorting result, the quadrature modulation signal is identified.

Description

technical field [0001] The present specification relates to the field of wireless communication, and in particular, to a method and device for signal identification. Background technique [0002] With the development of communication technology, Multiple-Input Multiple-Output (MIMO) technology has been widely applied to the field of communication technology to increase the system capacity by increasing the number of antennas to meet the needs of high-speed communication. Since the multipath effect, frequency selectivity and inter-antenna interference will cause certain interference to the received signal in the communication transmission process, it is necessary to perform signal identification on the received signal to accurately determine the received signal. [0003] However, the currently used orthogonal decomposition (QR decomposition, QR) method needs to increase the computational complexity of the system in order to improve the accuracy of signal recognition and syste...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/38H04L25/03
Inventor 岳明章
Owner NEW H3C TECH CO LTD