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chap01_4
先进pid matlab 仿真 刘金琨 第版 第一章程序 pid matlab simulink liujinkunc hap01_4.rar (Liu Jinkun advanced first pid matlab simulation program version of the first chapter pid matlab simulink liujinkunc hap01_4.rar)
- 2009-07-17 21:23:08下载
- 积分：1
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mypsnr
计算两幅图像的峰值信噪比。图像是表示地个像素点所用的二进制位数，即位深。计算PSNR(Calculate PSNR of two images. Image pixel is expressed in a number of bits used, ascended the throne deep. Calculation of PSNR)
- 2011-05-10 16:56:04下载
- 积分：1
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84
说明： 滚动轴承故障诊断是机械故障检测中一个重要方面。使用小波包分析和包络分析相结合的方法提取轴承微弱振动信号, 克服了传统包络分析方法易丢失信号有效成分的缺点。包络信号的细化谱较好体现了轴承故障信息。(Bearing Fault Diagnosis of mechanical fault detection in an important aspect. The use of wavelet packet analysis and envelope analysis method of combining extracts bearing vibration signal weak to overcome the traditional envelope analysis method easy to lose the signal disadvantage of the active ingredient. Refinement of the envelope signal spectrum better reflects the bearing fault information.)
- 2013-08-15 20:01:14下载
- 积分：1
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matlab
在采样点之间的频率响应是由各采样点的加权内插函数叠加而形成的，因而有一定的逼近误差。该误差大小取决于理想频率响应的形状，理想频响特性变化越平缓，内插值越接近理想值，逼近误差越小；反之，如果采样点之间的理想频响特性变化越陡，则内插值与理想值之间的误差越大，因而在理想滤波器不连续点的两边，就会产生尖峰，而在通带和阻带就会产生波纹。用频率采样法设计的实际滤波器频率响应如图1所示。由图1可知，实际滤波器的阻带衰减取决于内插函数第一旁瓣幅度值的大小，其大小决定了所设计的滤波器的阻带性能。(Interpolation function superimposed between sampling points of the frequency response is weighted within each sampling point and the formation of, and thus have a certain degree of approximation error. The size of this error depends on the shape of the ideal frequency response and the ideal frequency response characteristic change is more gentle, interpolated and more close to the ideal value, the smaller the approximation errors Conversely, if the sampling point between the ideal frequency response characteristics of the steeper the change, and then the interpolated the larger the error between the ideal value, and thus in the ideal filter both sides of the discontinuity point, will produce spikes occurs ripple in the passband and stopband. Actual design frequency sampling filter frequency response is shown in Figure 1. Figure 1 shows, the actual filter stopband attenuation depending on the interpolation value of the size of the first side-lobe amplitude of the function that determin)
- 2013-03-12 13:47:15下载
- 积分：1
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F-K
地球物理地震学——基于FK域的波场分离，也可应用于滤波(FK domain wave field separation, can also be applied to filter)
- 2021-04-17 14:18:53下载
- 积分：1
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ecg
this is the code for detection of heart rate
- 2015-02-27 01:19:04下载
- 积分：1
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xindao-
衰落是由于发射机与接收机之间空间位置的微小变化引起的，描述小范围内接收信号场强中瞬时值的快速变化特性，是由多径传播和多普勒频移两者共同作用的结果，包括由多径效应引起的衰落和信道时变性引起的衰落，具有信号的多径时延扩展特性和信道的时变特性(Fading is caused due to a slight change of the position of the space between the transmitter and the receiver, the characteristics of the receiving signal field strength, the instantaneous value of the rapid changes in the description within, by multipath propagation and Doppler frequency shift of the joint action of botha result, time-varying fading caused by multipath effects and channel fading due to multipath delay spread characteristics and channel time-varying characteristics of the signal)
- 2013-05-03 13:38:19下载
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matlabhanshu
matlab编程时需要用到的常见函数的用法及作用(usage and the role of the common functions needed in the Matlab programming)
- 2012-04-10 17:24:24下载
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Something-of-Matlab
matlab入门到精通，对初学者和高手都非常有用。(Entry to the proficient in matlab, is very useful for beginners and master.)
- 2013-09-25 11:24:40下载
- 积分：1
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puLSEcom
雷达信号处理的一个重要过程，脉冲压缩,可以利用匹配滤波的原理对目标进行定位(An important process for radar signal processing, pulse compression, you can use the principle of matched filtering on the target location)
- 2015-03-26 09:18:01下载
- 积分：1
