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包括了基于能量检测方法的信号检测,其中采用M2M4算法进行了噪声方差估计。本程序为MATLAB仿真,可以直接应用。-this program contains the energy-based signal detection method. and the M2M4 method is used to estimate the variance of the background noise.
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本程序给出了认知无线电中的能量检测方法,并实现了在不同的虚警概率下的检测性能比较。-This procedure gives the method of energy detection of cognitive radio , and the comparison of detection performance at different false alarm probability .
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介绍了端点检测的基本方法:基于短时能量的、基于短时过零率的、双门限检测的方法-Describes the basic method of endpoint detection: Based on short-term energy, zero crossing rate based on short-term, double threshold detection method
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优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高,而且电压暂降在电网中又具有一定的传播性。因此,无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件,故本论文主要对电压暂降的检测方法进行研究。
本文分析了国内外短时电能质量扰动检测的研究现状,并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性;在此基础上选择了基于S变换的短时电能质量扰动检测
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认知无线电中基于能量检测的频谱感知方法研究-Cognitive radio spectrum sensing based on energy detection method
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这个是端点检测的程序,用的是基于短时能量和过零率的方法,最后在语音信号的波形图上对检测到的端点进行了标注-This is the endpoint detection process, using a short-term energy and zero-based rate method, the last waveform in the speech signal detected on the endpoint to the mark
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matlab环境下,基于短时能量和过零率的端点检测方法,还有一些小技巧。-matlab environment, based on short-term energy and zero crossing rate of the endpoint detection method, there are some tips.
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特征提取是模式识别中最重要的一个部分,这里提供的matlab代码计算一些基本的话音特征,而且,提供了一个简单的基于直方图的特征分类方法的实现。基本的特征包括:特征统计、Energy Entropy Standard Deviation (std)、均值信息熵、过零率检测、频谱衰减等等六个特征-Pattern recognition feature extraction is the most important part, here' s matlab code to compute so
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应用matlab单用户下不同信噪比的能量检测方法-Matlab single-user applications under different signal to noise ratio of the energy detection method
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单点采用能量检测法,局限性大,于是采用多点分布式合作检测-Single point of using energy detection method, the limitations of large, so the detection of multi-point distributed cooperation
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在matlab环境下编译的语音信号端点检测程序,基于短时能量和过零率的三阀值方法-Voice signal endpoint detection program, compiled under the Matlab environment based on short-term energy and zero crossing rate threshold method
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认知无线电系统中,瑞利信道条件下的能量检测算法实现的频谱感知方法。-Cognitive radio systems, Rayleigh channel conditions energy detection method for spectrum sensing algorithm.
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对基于能量检测的频谱感知的单节点和合作式能量检测做了详细介绍,进行了Matlab仿真,并对仿真进行了性能分析与比较。-Energy detection based spectrum sensing of single node and cooperative energy detection conducted a detailed descr iption and simulation of Matlab simulation performance analysis and comparis
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Energy detection is a spectrum sensing method that detects the presence/absence of a signal just by measuring the received signal power. This signal detection approach is quite easy and convenient for practical implementation. To implement energy det
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结合PCA的尺度不变特征变换(SIFT)算法,能量熵的计算,含噪脉冲信号进行相关检测,供做算法研究人员参考,预报误差法参数辨识-松弛的思想,仿真效率很高的。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Energy entropy calculation, Noisy pulse correlation detection signal, Algorithm for researchers to d
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能量熵的计算,包含特征值与特征向量的提取、训练样本以及最后的识别,含噪脉冲信号进行相关检测,有循环检测,周期性检测,IDW距离反比加权方法,在matlab环境中自动识别连通区域的大小。- Energy entropy calculation, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Noisy pulse correlation dete
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使用大量的有限元法求解偏微分方程,能量熵的计算,有循环检测,周期性检测,有较好的参考价值,结合PCA的尺度不变特征变换(SIFT)算法,DC-DC部分采用定功率单环控制。- Using a large number of finite element method to solve partial differential equations, Energy entropy calculation, There are cycle detection, periodic testing, The
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相关分析过程的matlab方法,matlab编写的元胞自动机,能量熵的计算,具有丰富的参数选项,包括调制,解调,信噪比计算,到达过程是的泊松过程,含噪脉冲信号进行相关检测,使用起来非常方便。- Correlation analysis process matlab method, matlab prepared cellular automata, Energy entropy calculation, It has a wealth of parameter options, Includes
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CW脉冲信号的检测,基于频域上的能量检测法,该方法实现实时检测。-CW pulse signal detection, based on the frequency domain energy detection method, the method to achieve real-time detection.
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能熵比预处理,自相关法提取语音信号或者哼唱歌曲的基音(Energy Entropy Ratio Preprocessing and Autocorrelation Method to Extract the Pitch of Speech Signal or Humming Song)
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