Format identification method and device of two-dimensional quadrature amplitude modulation signal and storage medium

A technology of quadrature amplitude modulation and format recognition, which is applied in the field of information transmission, can solve the problems of low recognition robustness and large resource consumption, and achieve the effect of high recognition robustness

Pending Publication Date: 2021-10-22
ZHONGTIAN COMM TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, due to the use of the supervised learning algorithm in the existing method, it needs to train the supervised learning algorithm in advance, and a large amount of training resources will be required in this process. At the same time, the training effect is related to the selection of the initial centroid, and its resource consumption is relatively high Large, low recognition robustness

Method used

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  • Format identification method and device of two-dimensional quadrature amplitude modulation signal and storage medium
  • Format identification method and device of two-dimensional quadrature amplitude modulation signal and storage medium
  • Format identification method and device of two-dimensional quadrature amplitude modulation signal and storage medium

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Embodiment 1

[0068] figure 2 is a schematic flowchart of a method for identifying the format of a two-dimensional quadrature amplitude modulation signal provided by the present application, as shown in figure 2 As shown, the method includes:

[0069] Step 201, using a channel estimation-based demodulation algorithm to obtain a two-dimensional quadrature amplitude modulation signal from signal demodulation, and construct a constellation diagram of the two-dimensional quadrature amplitude modulation signal.

[0070] Step 202, based on a clustering algorithm, determine the number of constellation cloud clusters in the constellation diagram.

[0071] Step 203, according to the number of constellation cloud clusters in the constellation diagram, determine the signal format of the two-dimensional quadrature amplitude modulation signal from various signal formats; wherein the multiple signal formats include: quadrature phase shift signal, 8 quadrature amplitude modulation signals, 16 quadratu...

Embodiment 2

[0107] On the basis of Embodiment 1, Embodiment 2 provides a format identification device for a two-dimensional quadrature amplitude modulation signal, Figure 7 A schematic structural diagram of a format recognition device for a two-dimensional quadrature amplitude modulation signal provided by this application, as shown in Figure 7 As shown, the format recognition device for the two-dimensional quadrature amplitude modulation signal includes:

[0108] The mediation module 710 is configured to use a demodulation algorithm based on channel estimation to obtain a two-dimensional orthogonal amplitude modulation signal from signal demodulation, and construct a constellation diagram of the two-dimensional orthogonal amplitude modulation signal;

[0109] A clustering module 720, configured to determine the number of constellation cloud clusters in the constellation diagram based on a clustering algorithm;

[0110] An identification module 730, configured to determine the signal f...

Embodiment 3

[0127] Figure 8 A schematic structural diagram of the electronic device provided in the embodiment of the present application, such as Figure 8 As shown, the embodiment of the present application also provides an electronic device 1400, including: a memory 1401, a processor 1402, and a computer program.

[0128] Wherein, the computer program is stored in the memory 1401 and is configured to be executed by the processor 1402 to implement the method for identifying the format of a two-dimensional quadrature amplitude modulation signal provided by any embodiment of the present application. Relevant descriptions can be understood by referring to the relevant descriptions and effects corresponding to the steps in the accompanying drawings, and details are not repeated here.

[0129] Wherein, in this embodiment, the memory 1401 and the processor 1402 are connected through a bus.

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Abstract

The embodiment of the invention provides a format identification method and device of a two-dimensional orthogonal amplitude modulation signal for high-speed optical communication module application, and a storage medium, and the method comprises the steps: carrying out demodulation of a signal through employing a demodulation algorithm based on channel estimation, obtaining a two-dimensional orthogonal amplitude modulation signal, and constructing a constellation diagram of the two-dimensional orthogonal amplitude modulation signal; based on a clustering algorithm, determining the number of constellation cloud clusters in the constellation diagram and the signal format of the two-dimensional orthogonal amplitude modulation signal from multiple signal formats; wherein the multiple signal formats comprise a quadrature phase shift signal, a quadrature amplitude modulation signal 8, a quadrature amplitude modulation signal 16, a quadrature amplitude modulation signal 32 and a quadrature amplitude modulation signal 64. The number of the constellation cloud clusters in the constellation diagram of the two-dimensional orthogonal amplitude modulation signal is calculated through the clustering algorithm, so that the signal modulation format of the two-dimensional orthogonal amplitude modulation signal is identified based on the number of the constellation cloud clusters, and compared with the prior art, the identification robustness is relatively high.

Description

technical field [0001] The present application relates to the technical field of information transmission, and in particular to a format identification method, device and storage medium of a two-dimensional quadrature amplitude modulation signal. Background technique [0002] Signal modulation format identification technology plays a very important role in the field of wireless communication. In particular, with the development of coherent optical communication technology that supports multi-modulation signals, research on signal modulation format identification in the field of optical communication is also gradually carried out. [0003] In the prior art, a supervised learning algorithm is generally used to identify the modulation format of the signal, for example, a K-means clustering algorithm is used to obtain the number of centroids and estimate the order of the modulation format. [0004] However, due to the use of the supervised learning algorithm in the existing meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06F2218/00G06F18/23G06F18/214
Inventor 揭水平高明义沈纲祥邵卫东符小东马宗仰
Owner ZHONGTIAN COMM TECH CO LTD
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