CSMA_CA

说明：  将数组a[0]~a[size-1] 中重复的字母删除（仅仅保留第一次出现的字母，后续的重复字母均删除）(The array a [0] ~ a [size-1] Remove duplicate letters (just the first time to retain the letters, follow-up letters were removed duplication))

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

对电磁波三维传播的仿真，包括在自由空间的传播和FDTD算法的有界空间传播(Three-dimensional simulation of electromagnetic wave propagation, including propagation in free space bounded space propagation and FDTD algorithm)

the folder gives information about the image forgery detection. detection is made by examining the sift and ransac features of the image. color processing is done as a preprocessing step.

Miller-Rabin test for simple numbers.

说明：  中国标准数字地面电视中重要仿真代码 可实用化的(The practical matlab simulation code for the chinese standard DTV )

SEP是一个稳定的选择协议，基于分簇的无线传感器网路。(SEP is a stable option agreement, cluster-based wireless sensor network.)

该文件是产生两组随即的高斯分布系列，均值为0，均方差为N/2(The document was then produced two series of Gaussian distribution, the mean of 0 and standard deviation of the N/2)

对Scout概率统计定位算法进行matlab仿真，完全可以实现。(Probability and Statistics for Scout positioning algorithm matlab simulation, can achieve.)

VTC file is the file format of the Brainvoyager. The FMRI matchine scan human s brain and get the vtc data. This toolbox can help you to read the vtc file into matlab.