hermite_pulses

学校电子设计竞赛时做的一个小DDS系统,功能较全,基于DSPBuilder,在MatLab R2009b中仿真通过(Electronic Design Competition when schools do a small DDS system function than the whole, based on DSPBuilder, in the simulation in MatLab R2009b by)

说明：  读、写surfer文本的GRD格式的matlab程序，适合不需要插值的数据读写，比surfer自带的数据网格化功能处理的速度要快几十倍、甚至上百倍，可以处理大容量数据。(Reading and writing text surfer GRD format matlab program for reading and writing data without interpolation, the grid than the surfer' s own data processing capabilities several times faster, or even a hundred times, can handle large amounts of data.)

TSP simulated annealing matlab code

Simulation of ESPRIT

WIMAX_WZ_withencoding:信道估计，相位噪声补偿，频偏估计，编解码都有 WIMAX_WZ_withoutencoding：在上面的工程基础上，去掉编解码部分 WIMAX_WZ_withoutprocessing：在上面的工程基础上，再去掉相位噪声补偿，频偏估计 WIMAX_WZ_withoutprocessing2：在上面的工程基础上，改用新的前导和导频联合信道估计方案,参考文档《基于802_16d标准的OFDM信道估计技术的研究与实现.kdh》 因为白噪声信道仿真只能体现QPSK调制和RS-CC编码的性能，需要仿真SNR可控的SUI信道，来估计信道均衡的性能。 在多普勒频偏fd>100Hz时，联合信道估计性能才比前导估计强，否则前导估计性能更优。对于600MHz中心频率，要求收发机相对运动速度大于180km/h，这种情况出现的概率不大(WIMAX_WZ_withencoding: channel estimation, phase noise compensation, frequency estimation, the codec has WIMAX_WZ_withoutencoding: the project on the basis of the above, remove the codec section WIMAX_WZ_withoutprocessing: the project on the basis of the above, then remove the phase noise compensation, offset estimation WIMAX_WZ_withoutprocessing2: In the project on the basis of the above, use the new leader and pilot joint channel estimation scheme, the document " Standards-based 802_16d OFDM channel estimation and implementation of technology .kdh" because white noise channel simulation only reflects the QPSK modulation and RS-CC coding performance requires simulation SNR controllable SUI channel, to estimate the performance of channel equalization. When Doppler shift fd> 100Hz, joint channel estimation performance was stronger than the leading estimate, otherwise better estimation performance leader. For 600MHz center frequency transceiver requirements relative velocity )

计算机随机模拟日期才用泊松分布，利用指数分布求出时间(Before the date of the computer random simulation with Poisson distribution, calculated using exponential distribution of time)

这里是课程设计时做的一个MATLAB-SIMULINK环境下OFDM的仿真源程序，采用16QAM的子载波调制系统，高斯模拟信道，有误码率分析以及星座图，希望对大家有所帮助(Here is a program designed to do a MATLAB-SIMULINK environment, OFDM simulation source code, using 16QAM subcarrier modulation system, Gaussian analog channel, with bit error rate analysis and the constellation, we want to help)

matlabcontourlet变换结合了不可分离的方向滤波组,具备小波所不能表达的多方向特性,能有效捕获自然图像的边缘轮廓信息。本文分析了图像ontourlet系数的统计特征,并利用广义高斯函数对各子带系数层进行建模。将此模型应用于基于VisTex的自建纹理图像库,采用矩匹配估计法,提取模型参数集,运用K2L (matlab)

Smith Nguyen Studio. Smith Nguyen Studio. Smith Nguyen Studio. Smith Nguyen Studio. Smith Nguyen Studio.

改进的快速模糊C- 均值聚类算法。基于FFCM算法，提出了新的改进，效果很好。(The rapid improvement c-means clustering algorithm.Based on FFCM algorithm, and puts forward a new improved, the effect is very good. )