tuxiangdesuofang

IT家园论坛通信仿真精华资料汇总，提供如MIMO信道的建模，误码率比较等的实际访深例子。(IT Forum home the essence of communication simulation data aggregation to provide, such as MIMO channel modeling, error rate comparison of the actual visit to the deep examples.)

天在维普下载了一篇SPIHT算法改进的论文，（耿兴云，《基于改进SPIHT的静态图像编码》，电脑知识与技术：学术交流-2007年5期），我根据该文提出的改进算法，用Matlab来实现，却发现改进算法的程序运行速度比原算法还要慢，希望有兴趣的朋友进来看看，评论一下原因。(Days in the VIP downloaded a SPIHT algorithm to improve the paper, (Gengxing Yun, " based on improved SPIHT still image coding," Computer Knowledge and Technology: 5-year academic exchange-2 007), in accordance with this paper the improved algorithm Matlab to achieve, but found that the improved algorithm runs faster than the original algorithm is also slow, hope to have interested friends come to see, comment on why.)

说明：  matlab写的用于时间序列预测的AR模型的程序，对于线性的时间序列效果还是可以的。(Matlab written procedures for time series forecasting AR model, the linear effect of time-series.)

运用前推回推法进行配电网潮流计算。附有33母线系统数据，以供检验。程序没有考虑电容器、分布式电源，以及弱环网的影响。(Before using push back push power flow calculation method. With 33 bus system data for testing. The program does not consider the capacitor, distributed power, and the impact of the weak ring network.)

RGB-HSI相互转换的matlab函数，程序实现比较简单，直接可以运行(failed to translate)

通信系统中调制解调串并转换，符号映射，载波调制，相干解调等模块的matlab仿真文件，适合通信工程中的调制技术的仿真工作(Communication system and installed for the modem string, symbol mapping, modulation, coherent demodulation module matlab simulation files, suitable for simulation of communication engineering work modulation techniques)

随机多址接入协议的matlab仿真及其结果，包括ALOHA，时隙ALOHA，非连续性CSMA和时隙非连续性ISMA协议。(The matlab simulation and results of random multiple access protocol,including ALOHA, slotted ALOHA, CSMA and snpisma protocols.)

matlab程序代码，实现两个矩阵按照自定义的顺序拼接形成新矩阵(matrice splicing)

堆叠自动编码器-三层网络，bp做全连接层 可以回归可以分类(stacked autoencoder . bp for fully-connected layer . The code is not only for regression but also for classification)

用于处理地震数据的一系列操作代码，包含对地震书籍的处理和对井资料的处理，非常适合勘探地震学初学者学习。里面附有英文使用说明(Code for seismic data processing a series of operations, including handling and processing of seismic well data books, is very suitable for beginners to learn exploration seismology.)