提出了一种基于HHT和支持向量机的实际数字调制信号识别算法。
This paper proposed a digital modulation signal identification method using the HHT and SVM methods.
本文研究了一种基于模糊分类的调制信号识别方法，即提取信号时域、频域、功率谱等统计特性，利用模糊分类器进行分类识别。
The classification technique uses various features of the signal amplitude, frequency, and power spectrum applied to the fuzzy classifier.
通信信号的自动调制识别在截获信号处理方面是一个十分重要的课题。
The automatic modulation identification for communication signals is a still important problem in the intercepted signal processing.
所以，如何选定并提取信号的特征便成为调制识别的基本环节。
Thus, the basic important step of modulation identification is how to specify and extract signal features.
自动调制识别的目的就是在未知调制信息内容的前提下，判断出通信信号的调制方式，并估计出相应的调制参数。
The objective of automatic modulation identification is to decide the modulation type and estimate the modulation parameters without any priori knowledge about the signal information content.
自动调制识别的目的就是在未知调制信息内容的前提下，判断出通信信号的调制方式，并估计出相应的调制参数。
The objective of automatic modulation identification is to decide the modulation type and estimate the modulation parameters without any priori knowledge about signal contents.
实验结果表明，该调制识别方法在小样本下具有较高的识别率，可以应用在数字信号的调制识别系统中。
The experiment results justify the high recognition rate with less samples, thus the method can be used in the digital signal modulation recognition system.
在军事领域，通信信号调制方式的识别是对敌方通信进行干扰或侦听的前提。
In military field, the modulations recognition of communication signals is the prerequisite of interference towards the enemy's communication.
提出了一种应用小波变换提取分类特征的基于支撑矢量机的通信信号调制识别方法。
A new method of modulation identification for communication signals, using wavelet transform to extract characteristics and based on support vector machines (SVM), is proposed.
数字调制方式的识别对于通信信号分析有着重要的作用。
Identification of digital modulation schemes plays an important role in signal analysis.
自动调制识别的目的就是在未知调制信息内容的前提下，判断出通信信号的调制方式，并估计出相应的调制参数。
The objective of automatic modulation identification is to decide the modulation type and estimate the modulation parameters without any prior knowledge about the signal information content.
伪码调相-载波调频复合信号的识别特征包括伪码特征和频率调制特征。
The features of pseudo code PM-carrier FM combined signal include the pseudo code and the modulation frequency.
利用谱相关函数的这些性质可以识别出噪声中的调制信号。
These characteristics of spectral correlation can be used to classify modulated signals, even when the signals are buried in noise.
正确认识其调制类型，识别信号本身的一些基本特征，是信号处理的首要问题。
It is the chiefly problem of signal disposal to recognize its modulated type and its essential characters rightly.
从有线数字电视射频信号特征参数提取着手，建立了一套识别16QAM和64 QAM射频信号调制方式的数学算法。
Based on the characteristic extracting of RF signal in digital cable TV system, this paper puts forward an algorithm for modulation recognition between 16qam and 64qam RF signals.
雷达信号调制识别和参数估计是雷达侦察与对抗的重要研究课题。
Radar signal modulation identification and parameter estimation are the important steps of radar reconnaissance and confrontation.
本文在前人的研究基础上主要做了如下工作：(1)研究了模拟调制信号的识别方法。
This dissertation performed the following work based on the research before: (1) We studied the modulation identification problem of analogue modulated signals.
该算法无需提供任何信号调制参数的先验知识，并且在较低的SNR条件下获得很好的调制模式识别效果。
With this method no a-prior knowledge about modulated signal are requested and a comparable good recognition result can be obtained under low SNR environment.
本文主要研究了OFDM信号识别和OF D M自适应调制技术。
In this paper, the techniques of the OFDM signal identification and adaptive OFDM scheme are studied.
的数字信号调制类型的自动识别已应用在许多领域，包括电子战，监视和威胁分析。
Automatic identification of the digital modulation type of a signal has found applications in many areas, including electronic warfare, surveillance and threat analysis.
本文采用基于统计模式识别的方法，研究了非合作通信与合作通信中通过提取调制信号的星座图特征对调制模式进行识别的问题。
In this research, based on statistical pattern recognition method, we use constellation of modulated signals to classify modulation modes both in non-cooperative and cooperative communications.
本文研究了基于BP神经网络的通信信号调制体制识别技术。
The modulation recognition technology for communication signals based on BP neural networks is studied.
该方案利用数字混合信号与常用数字调制信号在信号频谱以及星座点的差异提取特征参数进行自动识别。
In the scheme, a set of feature parameters are extracted from signal spectrum and constellation based on the differences between digital mixed signals and common digital modulation signals.
使用多个支撑矢量机分类器构成一个多类分类器用于多类信号的调制识别。
Several SVM classifiers are used to make a multi-classes classifier for modulation identification.
实验表明，用神经网络的方法进行通信信号的调制识别具有实际可行性和优越的性能。
Experiments reveal that there are neural feasibility and superior performance in application of network method in signals modulation -recognition field.
给出了利用信号星座图的QAM信号调制方式识别技术。
The modulation recognition technique of QAM signal by the constellation diagram is given in this paper.
无线电信号调制识别的基本任务就是对所截获的不明信号的通带调制种类进行分析、判决和归类。
The basic tasks of radio signals modulation identification are analysis, decision and classification of modulation type for intercepted unknown signals.
无线电信号调制识别的基本任务就是对所截获的不明信号的通带调制种类进行分析、判决和归类。
The basic tasks of radio signals modulation identification are analysis, decision and classification of modulation type for intercepted unknown signals.
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