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PAPR-Reduction2
This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated.
The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.
- 2011-05-19 20:47:15下载
- 积分：1
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RS(255-223)
用matlab实现RS（255,223）的编码，叫噪声，译码，并求出纠错个数，可以正确运行。(RS (255,223) coding using matlab, called noise, decoding, and calculated the number of error corrections, you can run correctly.)
- 2012-11-07 00:04:26下载
- 积分：1
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it
说明： Mathematics Special book problem and solutions
- 2015-03-28 18:00:53下载
- 积分：1
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exp1
捷联惯导系统放置在室内测试台上做静态测试，测试时间4500s。
1）取前180数据做粗对准（解析对准法）；
2）取第181s~900s数据做精对准（Kalman滤波法）；
3）从第901s开始做纯惯导解算；
4）用国军标的导航系统位置精度评价方法评估系统定位精度（分别计算CEP50 和 CEP95 下的定位精度）。(The strapdown inertial navigation system was placed on the indoor test bench for static test with a test time of 4500s.
1) take the first 180 data for rough alignment (analytical alignment method);
2) accurate alignment of 181s-900s data (Kalman filtering method);
3) pure inertial navigation solution is performed from 901s;
4) the positioning accuracy of the navigation system is evaluated by the method of position accuracy evaluation of the national military standard (the positioning accuracy under CEP50 and CEP95 are calculated respectively).)
- 2021-03-28 16:39:11下载
- 积分：1
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diagnose1
使用各种小波对故障信号进行小波变换，是一种先行高级数字信号处理思想(use of fault signal wavelet transform, is a first advanced digital signal processing Thought)
- 2006-08-01 09:43:49下载
- 积分：1
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ACO_jieshu
计算CN，即共同邻居的代码，用于链路预测，属于根据网络的局部特征进行预测(Calculating CN, i.e. common neighbors code for link prediction, according to the local characteristics of the network belonging to predict)
- 2014-01-24 18:34:19下载
- 积分：1
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AM
说明： 实现了AM的双边带调制解调功能！！！其中函数为自编(Achieved with bilateral AM modulation and demodulation functions! ! ! Which function as self-)
- 2008-06-11 22:27:08下载
- 积分：1
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extension
This generally used to find the range between the transmitter and the receiver.
- 2014-09-19 20:51:11下载
- 积分：1
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MAAB_Style_Guideline_Version2-1_pdf
matlab/simulink/stateflow 建模规范(guidelines for matlab/simulink/stateflow)
- 2010-12-15 12:07:32下载
- 积分：1
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adaptive
a set of m files for fufilling the adaptive filtering.
- 2012-05-01 19:33:48下载
- 积分：1
