mixfhs

matlab绘制CW信号的时域波形，同时对信号进行频谱分析，并考察采样频率以及信噪比对频谱分析的影响。(matlab draw CW signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum analysis.)

关于turbo码的译码matlab源码，主要有map,MAX_LOG_MAP,LOG_MAP等资料(Decoding of turbo code matlab source code, there are map, MAX_LOG_MAP, LOG_MAP etc.)

对bpsk信号进行调制，还可以对 qpsk ，16qam信号进行调制(For bpsk signal modulation, can also qpsk, 16qam signal modulation)

Wireless communication 4 by 4 mimo linear detection by ZF scheme

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.)

使用SCOP和OMP算法估计AOA，进而得到信道参数，信道得以准确估计(Use SCOP and OMP algorithm to estimate AOA, and then get the channel parameters, to accurately estimate the channel)

古典密码学中的一些实现加密的算法，用Matlab实现的。(Classical Cryptography to achieve some of the encryption algorithm, using Matlab to achieve.)

建立数学模型，求解能量最优条件下的分群数量(现代通信技术)。同构网络、同构网络、N节点随机部署，网络范围A*A；距离sink较远，认为所有点到sink距离相等。(A mathematical model, solving the energy clustering under optimal conditions the number of (modern communication technology). Homogeneous network, homogeneous network, N nodes are randomly deployed network-wide A* A far from the sink, that all points equidistant to the sink.)

MAtlab based simulation program for designing UMTS encoder

Qam base Ofdm system