tutorial-MATLAB-matrix-notation

两个重要文件： 1、Rayleigh_Doppler_singlePath.m 产生单径Rayleigh衰落，采用了6种方法并进行了比较，推荐使用第6种方法； 2、Rayleigh_Doppler_multiPath.m 根据多条径的延时和强度，产生频率选择性衰落； 在单径和多径两个程序中，均提供了其功率谱的输出代码； (Two important documents: 1, Rayleigh_Doppler_singlePath.m to generate a single path Rayleigh fading, using six kinds of ways and compared, 6 recommended methods 2, Rayleigh_Doppler_multiPath.m under a number of path delay and intensity, resulting in frequency selective fading in both single path and multi-path process, provide the output of its power spectrum code )

说明：  viterbi译码源代码,可以直接调用 The Viterbi decoder for convolutional codes(viterbi decoder source code, can be directly called The Viterbi decoder for convolutional codes)

解PDE的经典隐式格式 很好用 微分方程数值解的实验程序(佛如 pde‘s)

用guide编写代码实现简易画板的功能，是初学者实践guide的良好练习(Easy to write code using the guide Sketchpad features, a good practice guide for beginners to practice the)

有源电力滤波器建模，能很好的滤除谐波，输出正弦电压(Active Power Filter modeling can be a good harmonic filter, the output sinusoidal voltage)

matlab实现了五类灰色关联度模型的计算,包含CV、CA、Single、当前、恒转弯速率、转弯模型，包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度。( matlab implements five gray correlation degree computing model, It contains CV, CA, Single, current, constant turn rate, turning model, Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation.)

this book has description of introduction to algorithms.

Stop-and-wait ARQ is a method used in telecommunications to send information between two connected devices. It ensures that information is not lost due to dropped packets and that packets are received in the correct order. It is the simplest kind of automatic repeat-request (ARQ) method. A stop-and-wait ARQ sender sends one frame at a time it is a special case of the general sliding window protocol with both transmit and receive window sizes equal to 1. After sending each frame, the sender doesn t send any further frames until it receives an acknowledgement (ACK) signal. After receiving a good frame, the receiver sends an ACK. If the ACK does not reach the sender before a certain time, known as the timeout, the sender sends the same frame again.

CDMA Simulation Using MATLAB This program models a simple implementation of CDMA technology. It considers multiple bit data streams sent by any number of senders across a common channel. Each sender uses a unique code word, given by the Walsh set, to encode its data, send it across the channel, and then perfectly reconstruct the data at the receiver. The simulation utilizes these simplifications: 1. The individual data streams share the same bit length. 2. The code words are determined using the Walsh set to create orthogonal code words. 3. The spreading factor M of each code word is identical. 4. All users (data streams and codes) are synchronized in time. 5. Set-up and hold times of real-world systems are ignored. 6. The channel through which the data passes is ideal.

随机共振模型是检测微弱信号，近期流行的算法，效果不错，从事微弱信号检测和提取的可看下(Stochastic resonance model is to detect weak signals, the recent popular algorithms, good effect, engage in weak signal detection and extraction can look)