exam4

说明：  这是个基于matlab环境下，提取mfcc参数的小程序，希望能对大家有帮助。(This is a matlab-based environment, the applet parameter extraction mfcc, hoping to be helpful.)

传算法（Genetic Algorithm）是一类借鉴生物界的进化规律（适者生存，优胜劣汰遗传机制）演化而来的随机化搜索方法。它是由美国的J.Holland教授1975年首先提出，其主要特点是直接对结构对象进行操作，不存在求导和函数连续性的限定；具有内在的隐并行性和更好的全局寻优能力；采用概率化的寻优方法，能自动获取和指导优化的搜索空间，自适应地调整搜索方向，不需要确定的规则。遗传算法的这些性质，已被人们广泛地应用于组合优化、机器学习、信号处理、自适应控制和人工生命等领域。它是现代有关智能计算中的关键技术(Propagation algorithm (Genetic Algorithm) is a law of evolution in biology class reference (survival of the fittest, survival of the fittest genetic mechanisms) randomized search method evolved. It was first proposed by the United States J.Holland professor in 1975, and its main feature is to operate directly on the structure of the object, the continuity of the derivative and the function limitation does not exist with global implicit parallelism inherent and better optimization capability the use of probabilistic optimization method that can automatically obtain and guidance to optimize the search space adaptively adjust the search direction, the rule does not require determined. The nature of the genetic algorithm, has been widely used in combinatorial optimization, machine learning, signal processing fields, such as adaptive control and artificial life. It is about smart modern computing key technologies)

说明：  ofdm降低分均比的仿真，不吝指教，可能程序有疏漏之处，见谅

地震波转换与ANSYS应用工具及示例。 采用美国加州大学的地震波数据库，然后进行数据库数据的分析，最终得到可以应用到ANSYS中的地震分析输入数据(Conversion of seismic waves with the the ANSYS application of tools and examples. University of California seismic waves database, and then proceed to the analysis of the data from the database, the final seismic analysis of input data can be applied to ANSYS)

k-d树的matlab程序，包含了KDTREE, KDTREEIDX and KDRANGEQUERY functions。提供了两个Demo scripts(kdtree_demo.m & kdrange_demo.m),很实用( This distribution contains the KDTREE, KDTREEIDX and KDRANGEQUERY functions. Included are the source code files in kdtree/src, as well as precompiled mex files for the following systems: - Mac OS X (Matlab 6.5) - Redhat Linux (Matlab 6.5) - Windows (Matlab 6.1) Two demo scripts are provided (kdtree_demo.m & kdrange_demo.m). The new features added June 2004: + You can now use N dimensional data points, where N>3. + Use KDTREEIND to return the index value to the closest point, instead of the closest point values. + KDRANGEQUERY can now return these index values as well. Written by/send comments or suggestions to : Guy Shechter guy at jhu dot edu June 2004 )

本程序实现对随机信号的8PSK调制，程序里面有详细注释，很容易换成想要信号的8PSK调制，欢迎下载。(This program implements the random signal 8PSK modulation, which has detailed program notes, easily replaced want 8PSK modulation signal, welcome to download.)

matlab有限元教程，交会你matlab的秘密，此乃神书，神书(matlab study，good)

说明：  模拟退火算法解决旅行商问题，main.m为主程序(Simulated annealing algorithm for traveling salesman problem)

MATLAB中插值与拟和小函数，便于大家节省敲打键盘的时间 你们只要能够看懂它 并能够在合适的地方调用这些思想 并且有能力进行适当的变化 就已经到家了(MATLAB with the proposed interpolation and small function, This can help people save time and beating the keyboard You will be able to read it and to the appropriate local calls and have these ideas the capability to conduct appropriate changes already extraordinary)

matlab中有语音处理所需的分帧函数和重叠相加函数，调用起来很简单。(matlab in the sub-frame required for voice processing functions and overlap-add function, call it so easy.)