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CART
Matlab环境下用于数据挖掘的决策树算法源代码，CART算法(Matlab environment for data mining decision tree algorithm source code, CART algorithm)
- 2013-02-25 20:27:44下载
- 积分：1
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OFDM
首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。(First, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives. And then the characteristics of long training word, the correlation operation for the FFT window starting position of an OFDM symbol estimate. The estimated position of the FFT window, the first small frequency offset in the time domain estimation, the two long training word small frequency offset compensation, the FFT operation, the FFT result of the operation for integer frequency offset estimate. These parameter estimation is completed, the data can be demodulated on. The first portion of the data for a complete frequency offset compensation, and based on the estimated FFT window position of the FFT operation to obtain frequency domain data, demodulated. Then corresponding to the position of the pilot subcarriers are extracted on pilot inform)
- 2020-11-04 23:49:52下载
- 积分：1
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GQG
程序实现ofdm系统中通过用选择性映射（SLM）来改善系统的峰均比（PAR）。减少较大功率峰值出现(Program ofdm system by using selective mapping (SLM) to improve the system of PAR (PAR). Reduce peak power greater)
- 2013-11-23 20:49:26下载
- 积分：1
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Dynamic-simulation-of-Electric-Machinery-using-MA
book which helps on developing matlab files for motors
- 2012-11-25 05:30:03下载
- 积分：1
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power_steppermotor
Stepper Motor Drive
A hybrid stepper motor drive.
- 2011-07-22 20:47:32下载
- 积分：1
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lsh
Algorithm to find the melody of a polyphonic music signals.
- 2014-10-31 15:34:47下载
- 积分：1
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sudden_Pollution
用matlab软件编制的突发水污染事故的解析模型，可计算和绘制污染团浓度场、事故下游各点污染物浓度变化过程、超标时间等。( the regularity of its water change and pollution mass features, as well as the dumping situation at its upper-reach streams. In addition, we have also worked out its substandard pollutant range, on-spot concentration distribution, the process of its water-pollutant concentration change)
- 2014-04-28 10:31:45下载
- 积分：1
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expi
报童模型的负指数分布,以及生成收益与需求量的图形、亏损与需求量的图形(Newsboy model negative exponential distribution, and generate revenue and demand for graphics, loss and demand graph)
- 2013-11-07 21:53:52下载
- 积分：1
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LDA算法
说明： 利用LDA算法，实现数据降维。输入样本数据、原维度数和目标维度数，输出降维后数据(Data Dimension Reduction Using LDA Algorithms)
- 2019-03-01 09:33:50下载
- 积分：1
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crc9
循环冗余校验码仿真程序，非常好，值得学习。(Cyclic redundancy check code simulation program, very good, worth learning.)
- 2010-11-04 15:55:24下载
- 积分：1
