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Description: 考虑L的三个不同值：L＝256（3个数据段），L＝128(7个数据段)和L=64（15个数据段）。各自的谱估计图如上图所示。可以明显的看到，加窗明显的减小了频谱上的假谱峰，但也更加进一步平滑了谱峰。所以，对于L＝64的情况，在ω＝0.8π的谱线可以很确定的辨认，但是那两个靠近的谱峰不容易区分。对于L＝128的情况，这种情况提供了在分离和检测间最好的均衡。当然，对于在L＝256时的情况，效果是更好的，能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外，还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等，在功率谱估计上也能取得较好的结果。-consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power
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Size: 1826 |
Author: 吴胜 |
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Description: Gui设计产生mesh,surf,peaks-Gui have mesh design, surf, peaks
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Size: 1996 |
Author: 欧阳西 |
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Description: 提取振动曲线的波峰和波谷值，返回对应的坐标值和峰值。-extract vibration curve peaks and trough values corresponding to the coordinates of the peak value.
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Size: 1146 |
Author: wyl |
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Description: 这是 针对 图象分割的图象生长算法,用来分割有多个峰的灰度图像,在Vc环境下-this is a picture of the image segmentation algorithm growth, for a number of peaks divided the gray image in Vc environment
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Size: 4491 |
Author: zzyy |
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Description: 波峰因数消减在无线通信系统的设计研究，包括wcdma,Td-scdma以及wimax等系统-peaks abatement factor in the wireless communications system design, including wcdma. Td - scdma systems and wimax
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Size: 2081070 |
Author: 聂华 |
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Description: A fast customizable function for locating and measuring the peaks in noisy time-series signals.-A fast customizable function for locating and measuring the peaks in noisy time-series si gnals.
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Size: 5716 |
Author: 左贤君 |
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Description: 提取振动曲线的波峰和波谷值，返回对应的坐标值和峰值。-extract vibration curve peaks and trough values corresponding to the coordinates of the peak value.
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Size: 1024 |
Author: wyl |
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Description: Find peaks in all waveforms. used in matlab. The peaks can be maximum and minimum.
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Size: 1024 |
Author: Jack |
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Description: 双峰法是一种简单的阈值分割方法，即如果灰度级直方图呈现明显的双峰状，则选双峰之间的谷底所对应的灰度级作为阈值分割。-Two peaks is a simple threshold segmentation method, that is, if the gray level histogram showed a clear bimodal shape, then choose between the two peaks corresponding to the bottom of the gray level as threshold segmentation.
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Size: 2048 |
Author: 刘波 |
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Description: 灰度门限化许多情况，图象是由具有不同灰度级的两类区域组成。如文字与纸张、地物与云层（航空照片）。其特点:直方图具有两个峰，分别与两个灰度级范围相对应 。故可选择一个门限，将两个峰分开。-Gray threshold of many cases, the image is gray level of two different regional groupings. If words and paper, surface features and cloud cover (aerial photograph). Its features: histogram has two peak, respectively, with the two gray-scale range corresponding to. So choose a threshold, separating the two peaks.
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Size: 69632 |
Author: lscvenus |
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Description: ecg Peaks R detection
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Size: 1024 |
Author: Flavio |
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Description: code in matlab for counting number of peaks in a histogram
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Size: 26624 |
Author: zakabota |
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Description: Digital signal processing, Find peaks on ECG using threshold
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Size: 47104 |
Author: Lazar |
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Description: Peaks计算二维光子晶体带隙程序较长用起来还可以-Peaks calculate two-dimensional photonic bandgap program longer can also use them
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Size: 34816 |
Author: liming |
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Description: 基于离散余弦变换的最小二乘法相位解包裹(DCT),peaks生成包裹相位图，用LS-DCT解包裹得到去包裹的真实相位图-Based on Discrete Cosine Transform method of least squares phase unwrapping (DCT), peaks generated wrapped phase diagram obtained by LS-DCT unwrapping unwrapping the true phase diagram
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Size: 1024 |
Author: 刘稳 |
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Description: labview 计算峰数的源码-labview Calculation of the number of peaks
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Size: 26624 |
Author: 王若凡 |
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Description: emprical mode decomposition( emd, find peaks)
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Size: 1024 |
Author: fedf |
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Description: it is an implementation of the algorhytm for the identification R peaks based on Pan-Tompkin
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Size: 2048 |
Author: peacelove69 |
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Description: pso算法的matlab代码，使用peaks函数作为评价函数，进行模拟仿真-pso algorithm matlab code that uses the peaks function as an uation function, conduct simulation
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Size: 1024 |
Author: zy |
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Description: 利用surf1函数绘制函数图形的三维光照图形，其中图形函数表达式为peaks(Use surf1 function to draw three-dimensional graphics of functional graphics, in which the graphical function expression is peaks)
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Size: 1024 |
Author: 缪西北
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