PassiveSignal

In Modulation schemes such as OFDM transmitter time domain signal will have higher PAPR, which leads to various distortions in the transmitter chain and degradation of system performance i.e. BER/PER. Also requires highly linear power amplifier which increases cost of the system. PAPR is ratio of peak power to average power of time domain complex baseband signal which is to be transmitted. We will discuss PAPR reduction techniques below.

快速自适应非局部sar降斑，bm3d处理图像效果非常不错，但复杂度太高，本文针对bm3d复杂度太高这一缺点，对算法计算方面作出改善；通过源程序文件可以很清楚了解作者思想(Fast Adaptive nonlocal sar Despeckling, bm3d image processing effect is very good, but the complexity is too high, the paper is too high for this shortcoming bm3d complexity of computing algorithm to make improvements can clearly understand what the author thought through the source files)

神经网络在手势识别中的应用及其相关的一些例子.(Neural network in gesture recognition application and its related some examples.)

说明：  由有经验的工程师编写,gps躁声信号的生成,很好的.(by experienced engineers prepared a GPS signal to the impatient generation, very good.)

说明：  这段代码的功能是生成高斯滤波器的，用matlab来实现的。(The code s function is to generate Gaussian filter with matlab achieved.)

this code generates notch signal

Matlab中用到的部分函数列表，按功能分类(Part of the list of functions used in Matlab, classified by function)

说明：  运用多松弛时间，相对于单松弛，具有更好的稳定性，且数值结果更精确(Compared with single relaxation, multi-relaxation time is more stable and the numerical results are more accurate.)

maltlab实现通信原理中的调制解调程序。已经过测试，效果很好。请用吧(maltlab realize the communication theory of modulation and demodulation process. Has been tested with good results. Please use it)

Space-time trellis encoder/decoder for QPSK modulation 2 bits per second per Hertz