Method and device for recognizing modulation modes on basis of peak-to-average ratios

A technology of modulation mode and identification method, which is applied in the field of identification method and device of modulation mode, can solve the problems of complex calculation, fuzzy eigenvalue, poor effect, etc., and achieve the effect of simple calculation and reduced calculation amount

Inactive Publication Date: 2014-01-29
LEADCORE TECH
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Problems solved by technology

However, the method of decision theory has disadvantages such as complex calculation and few types of signals that can be recognized.
The other is the statistical feature recognition method. Using this method, generally speaking, the pattern recognition system must be trained in advance, ...

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  • Method and device for recognizing modulation modes on basis of peak-to-average ratios
  • Method and device for recognizing modulation modes on basis of peak-to-average ratios
  • Method and device for recognizing modulation modes on basis of peak-to-average ratios

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0030] The first embodiment of the present invention relates to a method for identifying a modulation mode based on a peak-to-average ratio. The specific process is as figure 1 As shown, the steps are as follows:

[0031] Step 101, demodulate the received signal to obtain the received constellation symbols; in actual imple...

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Abstract

The invention relates to the field of wireless communication, and discloses a method and a device for recognizing modulation modes on the basis of peak-to-average ratios. The method includes computing the peak-to-average ratios according to constellation diagram symbols of received signals; comparing each peak-to-average ratio to a preset threshold so as to determine the modulation modes of the received signals are constant-envelope modulation modes or amplitude modulation modes. The method and the device have the advantages that the number of operation is low, and the constant-envelope modulation modes and the amplitude modulation modes can be effectively distinguished.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and a device for identifying modulation modes based on peak-to-average ratio. Background technique [0002] The automatic identification of signal modulation methods has a wide range of application values ​​in military and civilian fields, and plays an important role in signal authentication, interference identification, spectrum management and other fields. [0003] At present, the existing modulation identification algorithms are mainly divided into two categories: one is the decision theory identification method, which regards signal classification as a problem of multiple compound hypothesis verification, so the constructed classifier is in the minimum error probability sense The following is optimal, which can realize the classification of modulation methods in the case of low signal-to-noise ratio. However, the method of decision theory has disadvantages such...

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Application Information

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IPC IPC(8): H04L27/34H04L27/18
Inventor 王乃博严伟李丹妮
Owner LEADCORE TECH
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