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利用小波变换模极大值方法进行信号检测的实验,下面是我在MATLAB中做的程序,Using wavelet transform modulus maxima method of signal detection experiments, the following is what I do in the MATLAB procedure
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ECG信号处理获得各种features,包括P和T波的参数,该程序使用的数据来自mit database 如果要执行该程序,要修改ECG 信号的源文件目录-ECG signal processing to obtain a variety of features, including the P and T-wave parameters, the program uses data from mit database
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小波模极大值原理在图像边缘提取和信号奇异点检测中的应用-Wavelet Modulus Maxima Principle in Image Edge Detection and Signal Singularity Detection
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小波分析及其应用,详细介绍了小波变换原理和基本方法,还重点介绍小波变换在语音和图像处理、信号检测、多尺度边缘提取等领域的应用。-Wavelet analysis and applications, described in detail wavelet transform principles and basic methods, but also focuses on Wavelet Transform in the voice and image processing, signal det
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一种自适应chirplet分解的快速算法
针对信号自适应chirplet分解未知参数多、实现起来比较困难的特点,文献[1]提出了一种新的chirplet分解快速算法。该算法利用计算信号的二次相位函数,得到其能量分布集中于信号的调频率曲线上的结论,此时通过谱峰检测可同时获得chirplet调频率、时间中心和幅度的估计;然后通过解线性调频技术获得其初始频率和宽度的估计,仿真结果验证了本文算法的有效性。
-Chirplet an adaptive decomposition al
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:由于许多传统的去噪方法在强背景噪声情况下提取声音信号的能力变弱甚至失效, 提出
应用独立成分分析( I C A) 方法对声音信号进行特征提取, 并证明了这种 I C A 变换能增强语音和音
乐信号的超高斯性. 在此基础上, 应用 I C A基函数作为滤波器, 通过阈值化的去噪方法对含有强高
斯背景噪声的声音信号进行去噪仿真实验. 结果表明, 本方法明显优于传统的均值滤波和小波去噪
方法, 为强背景噪声下弱信号的检测提供 了新的途径.-: As many of the t
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Motion detection results
If you double-click the Switch block so that the signal is connected to the SAD side, the Video Viewer block displays the SAD values, which represent the absolute value of the difference between the current and pr
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用来做信噪比、峰值信噪比和均方差检测的图像,比较经典,都是灰度图像-Used for signal to noise ratio, peak signal to noise ratio and standard deviation detection images, more classic, all gray image
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基于双耦合Duffing振子的随机相位正弦信号检测
采用双耦合混沌振子阵列实现了随机相位微弱正弦信号的检测,在此基础上,提出了新的检测方法,即利用单个耦合混沌振子,通过临界及周期状态
的变化检测随机相位微弱正弦信号并大致估计信号相位范围,该方法比双耦合混沌振子阵列法简单,更易于实现。-Based on double coupled Duffing oscillators random phase sine signals detected by two coupled chaotic o
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小波分析用于FSK信号的频率检测,非常好用的!-Wavelet analysis of the frequency of detection for the FSK signal, very nice!
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结合小波变换和香农定理,介绍了小波时间熵算法,并引用于信号异常检测中-Wavelet transform and the Shannon theorem, introduced the wavelet time entropy algorithm, and applied Signal Anomaly Detection
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小波变换是一种信号的时间—尺度分析方法,它具有多分辨率分析的
特点,而且在时频两域都具有表征信号局部特征的能力。由于其在信号处
理领域表现出的优异性能,目前在生物医学领域,广泛应用于信号检测、
特征提取、图像处理、信号压缩等方面。
-Wavelet transform is a signal of the time- scale analysis method, it has the characteristics of multi-resolution analysis, bu
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关于MATLAB中的语音信号检测程序,基于短时能量和过零率的-The voice on the MATLAB signal detection procedures, based on short-term energy and zero-crossing rate
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Matlab小波变换对于奇异点的检测,原始信号是含有奇异点的信号,为确定该奇异点的时间,采用haar小波进行连续小波变换后,在对系数进行分析处理。-Matlab wavelet transform to singular point detection, the original signal is containing the singularity of the signal, to determine the singular point time, adopting haar wavel
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基于MATLAB小波分析的奇异信号检测的研究-MATLAB-based wavelet analysis of singular signal detection study
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基于小波变换的信号检测和去噪的matlab源程序 基于小波变换的信号检测和去噪的matlab源程序-Matlab source of the signal detection and denoising based on wavelet transform
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matlab利用小波模极大值法实现信号的奇异性检测-Signal singularity detection in Matlab
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本论文包含5个源程序,分别为LSBCut、LSBCollage、DCTCut、DCTCollage和PSNR,其中LSBCut实现了LSB水印算法的剪切篡改的检测、LSBCollage实现了LSB水印算法的拼贴篡改的检测、DCTCut实现了DCT水印算法的剪切篡改的检测、DCTCollage实现了DCT水印算法的拼贴篡改的检测、PSNR功能是计算嵌入水印嵌入的峰值信噪比,以此来说明嵌入水印后图像载体的失真大小。LSBCut、LSBCollage、DCTCut、DCTCollage是独立的程序,每
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基于CFAR的SAR目标检测。通过CFAR处理,可以保持信号检测时的虚警率恒定,从而使数据处理终端不致因虚警太多而过载(SAR target detection based on CFAR. Through CFAR processing, the false alarm rate of the signal detection can be kept constant, so that the data processing terminal is not overloaded with to
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噪声背景下的信号检测是一项复杂而又重要的任务,在雷达信号检测和通信领域都是重要的课题。在低信噪比情况下与普通自相关函数法进行了比较。给出了时域及频域(Signal detection in noisy background is a complex and important task. It is an important topic in the field of radar signal detection and communication. Compared with the gene
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