ncm

找到的编写的CDMA通信系统的仿真程序，发上来分享一下，同时附带具体的程序说明文档。(Found in the preparation of the CDMA communication system simulation program, a table to share, at the same time attached to the specific procedure documentation.)

说明：  基于MATLAB的viterbi编码、译码仿真程序(MATLAB based on the viterbi encoding, decoding simulation program)

这是升余弦滚降系统，包括时域波形，付氏变换，功率普分析，以及眼图，很有用的(Raised Cosine system, including time-domain waveform, Fourier transform, power & P analysis, and eye diagram, a very useful)

四旋翼飞控系统，包含定点，定高，自动按航迹点飞行，自动起飞，降落功能(Four-rotor flight control system)

主动降噪算法集合,active noise reduction(active noise reduction)

基于Matlab的地震数据处理显示和测井数据显示于处理的小程序(Matlab-based seismic data processing display and logging data show that in the treatment of small programs)

DTW（Dynamic Time Warping，动态时间归整）算法，该算法基于动态规划（DP）的思想，解决了发音长短不一的模板匹配问题，是语音识别中出现较早、较为经典的一种算法。用于孤立词识别，DTW算法与HMM算法在训练阶段需要提供大量的语音数据，通过反复计算才能得到模型参数，而DTW算法的训练中几乎不需要额外的计算。所以在孤立词语音识别中，DTW算法仍然得到广泛的应用。 (DTW (Dynamic Time Warping, dynamic time warping) algorithm based on dynamic programming (DP) ideas, sounds of varying lengths to solve the template matching problem, is speech recognition appeared earlier, more classic kind of algorithm. For isolated word recognition, DTW algorithm and HMM algorithm in the training phase need to provide a large number of voice data, obtained by repeated calculations to model parameters, while the DTW algorithm is almost no additional training calculations. Therefore, in isolated word speech recognition, DTW algorithm is still widely used.)

对一幅图像加入高斯噪声和椒盐噪声后，分别进行均值滤波和中值滤波，比较两种滤波方法的优缺点(Of an image by adding Gaussian noise and salt and pepper noise, the mean filter, respectively, and median filtering, comparing the advantages and disadvantages of the two filtering methods)

Travelling salesman problem description to code in matlab is provided in this document

space Time Block code