Description: 检测语音信号的共振峰
％ gender = gender_detector(X,Fs)
％
％ This function will use a pitch detection algorithm to decide if the speaker is MALE(0) or FEMALE (1).
％ It is designed to work with short speech samples (up to or greater than 50 ms). The function returns a
％ 0 if X contains male speech and a 1 if it contains female speech.
-the resonance peak gender_detector% gender = (X, Fs)%% This function will use a detection a pitch lgorithm to decide if the speaker is abbreviation (0) or F EMALE (1). % It is designed to work with short spe ech samples (up to or greater than 50 ms). The fun ction returns a 0% if X contains a male speech and if it contains a female speech. Platform: |
Size: 16384 |
Author:lixiao |
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Description: 彩色图像的篡改检测及自恢复算法赵春晖，孙建军，朱海峰(哈尔滨工程大学信息与通信工程学院，黑龙江哈尔滨150001)摘要：数字水印是图像认证的有效手段之一．利用小波变换提出一种计算简单的彩色图像水印算法，将一个图像的主要内容嵌入该图像自身之中，用均值量化的方法在亮度信号中嵌入水印，实现篡改检测和定位篡改区域；用多余的色度空间嵌入亮度信号和色度信号，用于恢复被篡改的图像内容．该算法可以获取较高的峰值信噪比，具有很好的鲁棒性．实验结果表明，该算法对删除、替换等恶意图像篡改具有良好的检测、定位和自修复能力．-color image tamper detection and self-recovery algorithm Zhao Chunhui, Sun Jianjun, Zhu Haifeng (Harbin Engineering University, Information and Communication Engineering Institute, Harbin, Heilongjiang 150001) Abstract : digital watermark image authentication is one of the effective means. Using wavelet transform A simple calculation of the color image watermarking algorithm, an image of the main elements embedded in the image itself, and use of quantitative methods mean the luminance signal embedded watermark, achieve tamper detection and localization tampering with the region; use of surplus space embedded color luminance signals and chrominance signals, for the restoration of tampering with the image content. The algorithm can generate a higher signal-to-noise ratio of the peak value, h Platform: |
Size: 237568 |
Author:ghostsx |
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Description: Single Carrier FDMA又称SC-FDMA或者DFT-Spread-OFDM是3GPP LTE最新提出的适用于上行传输的一种新方案。相对于OFDMA（主要用于下行），其最大的优势在于低峰值平均功率比（即PAPR）。本程序包括OFDMA，SC-FDE（单载波频域均衡）以及SC-FDMA程序，接收端采用经典的ZF和MMSE检测算法，程序短小精悍，相当经典，方便该领域的人学习与研究。-Single Carrier FDMA or SC-FDMA, also known as DFT-Spread-OFDM is the latest 3GPP LTE uplink transmission for a new program. Compared to OFDMA (mainly used for the downlink), the biggest advantage lies in its low peak-average power ratio (ie, PAPR). This procedure, including OFDMA, SC-FDE (single carrier frequency domain equalization), as well as SC-FDMA procedure, the receiving end the use of classical ZF and MMSE detection algorithm, procedures dapper, very classic, convenient in the field to learn and research. Platform: |
Size: 50176 |
Author:程鹏 |
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Description: 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 algorithm for rapid adaptive signal decomposition Chirplet many unknown parameters, is more difficult to achieve the characteristics of the literature [1] proposed a new fast algorithm Chirplet decomposition. The algorithm calculating the signal function of the second phase, its energy distribution to be concentrated in the signal modulation frequency curve on the conclusions, this time through the spectral peak detection can be obtained simultaneously Chirplet tune the frequency, timing and magnitude of the estimated center then through the solution line technology of FM frequency and the width of the initial estimates, the simulation results verify the effectiveness of the algorithm. Platform: |
Size: 80896 |
Author:nanzhewan |
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Description: 本程序实现hough变换。Hough变换是图像处理中从图像中识别几何形状的基本方法之一。Hough变换的基本原理在于利用点与线的对偶性，将原始图像空间的给定的曲线通过曲线表达形式变为参数空间的一个点。这样就把原始图像中给定曲线的检测问题转化为寻找参数空间中的峰值问题。也即把检测整体特性转化为检测局部特性。比如直线、椭圆、圆、弧线等。
-Hough transform this program. Hough transform image processing image recognition from the basic geometry methods. The basic principle of Hough transform is to use point and line duality, the original image space curve given expression through the curve of the parameter space into a point. This had given the original image in the detection curve into a parameter space to find the problem in the peak. That is, the overall characteristics of the detection of local features into testing. For example, a straight line, oval, round, arc and so on. Platform: |
Size: 14336 |
Author:cui ju |
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Description: Matlab source file for analysis of graphical ECG represents the Matlab CODE for the use in the finding the peak detection of the ECG Platform: |
Size: 11264 |
Author:Mandy |
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Description: 对呼吸信号进行检测的MATLAB程序，输入采集到的呼吸电信号，输出呼吸信号的峰值。-The respiratory signal detection MATLAB program, enter the collection to the respiratory signal, the output signal peak breath. Platform: |
Size: 1024 |
Author:hopen |
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Description: 有两个程序一个是关于frft的源程序，一个是应用frft对线性调频信号进行检测的程序，原理是以变换阶数（不同的分数阶域）为变量对观测信号进行分数阶变换，形成信号能量在时频平面上的二维分布，在此平面上按阈值进行峰值点的二维搜索即可检测线性调频信号并估计其参数。-There are two procedures one on frft the source, one application frft linear FM signal detection process, the principle is to transform the order of (different fractional domain) as the independent variables on the observed fractional signal change, the formation of signal energy in two-dimensional time-frequency plane distribution in this plane, the peak threshold value by two-dimensional linear FM signal can be detected search and estimate its parameters. Platform: |
Size: 1024 |
Author:王会彦 |
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Description: Hough变换是图像处理中从图像中识别几何形状的基本方法之一。Hough变换的基本原理在于利用点与线的对偶性，将原始图像空间的给定的曲线通过曲线表达形式变为参数空间的一个点。这样就把原始图像中给定曲线的检测问题转化为寻找参数空间中的峰值问题。也即把检测整体特性转化为检测局部特性。比如直线、椭圆、圆、弧线等-Hough transform is image processing image recognition from the basic geometry of one of the methods. The basic principle of Hough transform is to use the duality of points and lines, the original image space, the curve given expression through the curve of the parameter space into a point. This put the original image in the detection of a given curve is transformed into a peak in the parameter space to find the problem. That is the test for the detection of the overall features into local features. Such as lines, ellipses, circles, arcs, etc.
Platform: |
Size: 148480 |
Author:丁海龙 |
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Description: Hough变换利用图像空间和Hough参数空间的点－线对偶性，把图像空间中的检测问题转换到参数空间。通过在参数空间里进行简单的累加统计，然后在Hough参数空间寻找累加器峰值的方法检测直线。-Hough transform image space and Hough parameter space points- line detection problem in image space to parameter space duality. Through the simple accumulation of statistics in the parameter space, then the accumulator peak detection in Hough parameter space to find a straight line. Platform: |
Size: 8192 |
Author:马立静 |
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Description: this an peak detection alguritm,in this matlab code u can use pan topkins method to exctract R wave in a ECG signal-this is an peak detection alguritm,in this matlab code u can use pan topkins method to exctract R wave in a ECG signal Platform: |
Size: 1024 |
Author:nafiseh |
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Description: this an peak detection alguritm,in this matlab code u can use match filter method to exctract R wave in a ECG signal-this is an peak detection alguritm,in this matlab code u can use match filter method to exctract R wave in a ECG signal Platform: |
Size: 1024 |
Author:nafiseh |
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Description: this an peak detection alguritm,in this matlab code u can clean base line noise to have clear ECG signal-this is an peak detection alguritm,in this matlab code u can clean base line noise to have clear ECG signal Platform: |
Size: 1024 |
Author:nafiseh |
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Description: this an peak detection alguritm,in this matlab code u can clean base line noise to have clear ECG signal-this is an peak detection alguritm,in this matlab code u can clean base line noise to have clear ECG signal Platform: |
Size: 1024 |
Author:nafiseh |
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Description: Hough变换利用图像空间和Hough参数空间的点－线对偶性，把图像空间中的检测问题转换到参数空间。通过在参数空间里进行简单的累加统计，然后在Hough参数空间寻找累加器峰值的方法检测直线。例如，图1(a)中的九条线段对应于如图1(b)所示的其Hough参数空间的九个累加器峰值。图1(b)中，Hough参数空间的横纵坐标分别为直线极坐标方程:ρ＝x×cos(θ) + y×sin(θ) 的两个参数ρ和θ。九个峰值的ρ和θ值唯一的确定其对应线段所在直线的两个参数。并且线段的长度决定坐标(ρ,θ)处的累加值的大小。,Hough transform using the image space and Hough parameter space point- line duality, the detection problem in the image space conversion to the parameter space. Through simple accumulation statistics, and then in the Hough parameter space in the parameter space Find accumulator peak detect linear. For example, in Figure 1 (a), corresponding to the nine segments in Figure 1 (b) shown in the Hough parameter space of nine accumulator peak. Figure 1 (b), the horizontal and vertical coordinates of the on Hough parameter space respectively linear polar coordinate equation: ρ = xcos (θ) PPLS ysin (θ) of the two parameters ρ and θ. Nine peak of ρ and θ values uniquely determine the two parameters of the corresponding segments where the straight line. And the length of the line segment to decide the size of the accumulated value of the coordinates (ρ, θ) at. Platform: |
Size: 1024 |
Author:peter |
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Description: peak-sig detection is a matlab file that can be used in different energy detection in cognitive radio.-peak-sig detection is a matlab file that can be used in different energy detection in cognitive radio. Platform: |
Size: 1024 |
Author:Rumi |
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Description: Peak detection algorithm in matlab for Heart rate measurment using camera of smart phone-Peak detection algorithm in matlab for Heart rate measurment using camera of smart phone Platform: |
Size: 1024 |
Author:quan |
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