supermarket

包括0均值和给定方差的高斯白噪声生成函数，以及复高斯白噪声生成函数(Including the 0 mean and given variance Gaussian white noise generating function, as well as complex Gaussian white noise generating function)

oqpsk in awgn channel

一个matlab识现人脸表情识别的方法的代码，对于初学入门者matlab和研究人脸表情识别有很大的帮助。(Knowledge is a matlab method of facial expression recognition code matlab for beginners beginners and facial expression recognition research is very helpful.)

FIR滤波器的各种窗函数的幅频响应和频率响应的对比图。(Various pieces of window functions FIR filter frequency response and frequency response comparison chart.)

利用二维时域有限差分法纵向TE波模拟钻井(Using two-dimensional finite difference time domain simulation of drilling TE wave)

本函数用于估计随机效应面板空间误差模型（panel SEM)( computes spatial error model estimates for spatial panels )

说明：  ：该文首先研究了单认知用户能量检测算法的检测性能和检测灵敏度与检测时长和噪声短时间内平均功率波 动性之间的关系，得出检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降的结论，在低信噪 比时尤为明显；针对检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降，提出了基于多用户 协同能量检测算法。仿真表明，在低信噪比环境下，即使噪声短时间内的平均功率存在较大的波动性，只要适当地 增加协同检测的用户数，仍可获得较为准确的检测性能。(In this paper, detection performance and detection sensitivity with detection duration and noise average power fluctuation in short time is investigated firstly. Performance accuracy and detection sensitivity drop quickly with noise average power fluctuation increasing and it is worse when signal-to-noise ratio lower. Considering the characteristic, a novel new energy detection algorithm based on cooperative is presented. Simulations show that the proposed scheme improves antagonism of noise average power fluctuation in short time and gets a good detection performance as long as increasing the number of cooperative detection users.)

说明：  matlab code for finger print detection

协作通信中的AF，DF转发的matlab代码，其中还有一些是编码的代码。(Collaborative communication of AF, DF forwarding of matlab code, and some of them are encoded code. )

This is a file of matlab code.