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射频方面的技术文档:天线测试手机射频特性测量解决方案及应用(RF technical documents: RF characteristics of mobile phone antenna test measurement solution and application)

目前心率变异性分析已成为当今生物医学工程研究的一个热点，再次我把我分享的心电信号的HRV分析工具上传，更好的服务正在研究这个方向的同行。(heart rate variability analysis tools)

Review chapter about robotics

说明：  该软件和代码实现的功能是对图象的加密和解密,运行环境是Xp+matlab,代码中有说明,很容易看明白.(the software code and the functions of the image of encryption and decryption, the environment is Xp Matlab, the code is described, it is easy to see to understand.)

algorithm for determining glottal closure instances

粒子群算法解决经典的TSP问题，自己做的，测试不错，可以用(Particle swarm algorithm to solve the classic TSP, do it yourself, test good, you can use)

从初值出发，先计算y对时间t的导数，得到y的变化速度；求出x对t的导数，得到x随时间的变化速度。然后时间前进一小步h=0.002，同时x和y也都发生一个小的变化，即在原来数值基础上加上时间步长h和变化速度的乘积。如果x到达1或者-1，强制让y发生变化。这个过程不断迭代，得到结果。 (completed chart)

Monte-Carlo Integral

Using TF-IDF to Determine Word Relevance in Document Queries : In this paper, we examine the results of applying Term Frequency Inverse Document Frequency (TF-IDF) to determine what words in a corpus of documents might be more favorable to use in a query. As the term implies, TF-IDF calculates values for each word in a document through an inverse proportion of the frequency of the word in a particular document to the percentage of documents the word appears in. Words with high TF-IDF numbers imply a strong relationship with the document they appear in, suggesting that if that word were to appear in a query, the document could be of interest to the user. We provide evidence that this simple algorithm efficiently categorizes relevant words that can enhance query retri

包含一些通信系统的仿真程序 包括时间分集，频率分集，二时二频分集(Communication system contains some simulation program including time diversity, frequency diversity, frequency diversity two two)