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DBA
移动无线通信小区功率控制中的DBA算法,用于下行功率控制(DBA algorithm used for power control for downlinks in cells for wireless mobile communication)
- 2009-12-25 15:45:27下载
- 积分：1
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Digital-filtering-experiment
由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)
- 2014-12-24 09:34:43下载
- 积分：1
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Optimization
matlab遗传算法的一个例子,希望对大家能有所帮助，结构力学方面的。(An example of GA algorithm using matlab.)
- 2010-11-19 15:05:58下载
- 积分：1
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EnergyDetection
实现能量检测仿真，由main函数进行能量检测，psk_2实现BPSK调制，pdsnr计算出理论值，最后由main给出理论与仿真之间的画图比较。(Achieve energy detection simulation, the main function of the energy detection, psk_2 achieve modulation BPSK, pdsnr calculate the theoretical value, and finally given by the main draw between theory and simulation comparison.)
- 2011-01-18 16:18:18下载
- 积分：1
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cor_ls
把辨识分成两步进行：第一步：利用相关分析法获得对象的非参数模型（脉冲响应或相关函数）；第二步：利用最小二乘法、辅助变量法或增广最小二乘法等，进一步求的对象的参数模型。如果模型噪声与输入无关，则Cor-ls相关最小二乘法（二步法）可以得到较好的辨识结果。Cor-ls相关最小二乘法（二步法）实质上是先对数据进行一次相关分析，滤除了有色噪声的影响，再利用最小二乘法必然就会改善辨识结果。能适应较宽广的噪声范围，计算量不大，初始值对辨识结果影响较小。但要求输入信号与噪声不相关(The identification is divided into two steps: the first step: using the correlation analysis method for object nonparametric model (impulse response or related function) The second step: using the least squares method, auxiliary variable method or augmented least squares method and so on, further for the parameters of the object model. If the model input noise and independent, the Cor- ls related least squares (two footwork) can get good recognition results. Cor- ls related least squares (two footwork) is essentially the data to a correlation analysis, filter in addition to the influence of colored noise, using least squares inevitable will improve the identification result. To adapt to a wide range of noise and calculation is not big, the initial value to identification results less effect. But for the input signal and noise are not related)
- 2012-12-28 16:13:22下载
- 积分：1
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xldq
星历数据读取文件，用来读取GPS获得的星历数据，以便计算。(Star calendar data reading files, to read the GPS get star calendar data, for the calculation.)
- 2011-09-26 16:45:15下载
- 积分：1
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ask
利用matlab软件设计并仿真下面的无线通信系统。模拟信源为单音频信号。模拟调制方式为ASK。信道为多径信道（仿真中2径），信道中噪声为加性高斯白噪声。采用相干解调接收。画出了解调器输出端性能曲线与点信噪比SNR的关系。(Software design and simulation using matlab the following wireless communication systems. A single analog audio signal source. Analog modulation is ASK. Channel multi-path channel (simulation 2 diameter), channel noise is additive white Gaussian noise. The use of coherent demodulation receiver. Draw the output of the demodulation performance curve and the point of the relationship between signal to noise ratio SNR.)
- 2011-11-11 10:16:20下载
- 积分：1
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a
说明： 肌电信号多维特征提取 +均方根值+中值频率+平均功率频率(Multidimensional Feature Extraction of EMG Signal)
- 2019-06-30 16:00:50下载
- 积分：1
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panahi
a good algorithm for classification performance improvement (use PCA and LDA respectively and then implement the resulted data set into your classifier)
- 2011-08-05 02:58:03下载
- 积分：1
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imageprocess
数学形态学对信号进行去噪，效果较好，信号扰动特征得到很好保留(Morphology of the signal de-noising effect is good, the signal disturbance characteristics are well retained)
- 2010-08-03 14:06:40下载
- 积分：1
