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寻找测试样本的最近邻，可以有效的用于用于模式识别，信号处理(This is a small but efficient tool to perform K-nearest neighbor search, which has wide Science and Engineering applications, such as pattern recognition, data mining and signal processing. The code was initially implemented through vectorization. After discussions with John D Errico, I realized that my algorithm will suffer numerical accurancy problem for data with large values. Then, after trying several approaches, I found simple loops with JIT acceleration is the most efficient solution. Now, the performance of the code is comparable with kd-tree even the latter is coded in a mex file. The code is very simple, hence is also suitable for beginner to learn knn search.)

说明：  一组开发基于XILINX FPGA开发DSP算法的应用资料，具有实用性，可操作性。（3）(a group Xilinx FPGA-based DSP algorithm development of the information is useful, operability. (3))

针对信号分选的常见算法，包括sdif（序列差直方图）算法，可以解决类似于固定重频信号，抖动重频信号，滑变重频信号和参差重频信号的分选等(For several common signal sorting algorithms, including pri transform, sdif (sequence difference histogram) algorithm, cdif (cumulative difference histogram) algorithm, can solve similar fixed repetition frequency signals, jitter signal repetition, repetition becomes slippery sorting and mixed signal repetition frequency signals, etc.)

分数阶微积分的matlab实现的一种实现方法（英文），采用Oustaloup滤波器逼近来估算分数阶微积分。(Matlab implementation of the fractional calculus, an implementation method (English), the use of Oustaloup filter approximation to estimate the fractional calculus. )

太阳能电池模型 艾斯黛拉发生了的附件上附件了释迦佛(Solar cell model艾斯黛拉occurred in an annex to the annex of the Sakyamuni Buddha)

直流双闭环调速系统仿真 及参数 研究直流电机的 可以拿图去比较参考(DC double closed loop control system simulation)

基于类间最大距离的阈值处理方法对一幅彩色图像进行图像分割(Between class thresholding method based on a maximum distance of a color image segmentation)

this code very good for TSOM

huffman tree in matlab

只是一个数字水印的小程序，希望能给大家一些帮助(digital watermark)