Erlang-B

A signal is transmitted using a carrier frequency of 900 MHz. It is transmitted through a multipath channel which can be modelled as Rayleigh fading. Assumingthe Dopper spread as 10Hz and the number of multipaths as 10, generate the Rayleigh faded signal. Compute the outage rate (the probability of the signal falls below certain rate, say ?10 dB) of the signal. Using MATLAB, demonstrate the path loss as a function of loss parameter for distances ranging from 2 km to 40 km. Calculate the power loss in dB

Design of Buck Converter

这里实现的卷积码译码器可实现（n,1,K）的卷积译码，即一个输入码元，n个输出码元，编码器的约束长度为K，采用函数的默认值将实现（2,1,7）的卷积译码。译码方法为维特比硬判决译码，且译码开始状态假定为全零状态。(Here to realize convolutional code decoder can realize (n, 1, K) convolutional decoding, namely an input element, n output element, encoder constraint length is K, takes the default value of function, achieve the convolutional decoding,1,7 (2). Decoding method for decoding victor than hard decisions, and decoding the start state assumed to zero state.)

关于这个校正设计的程序，我原本打算做3个版本的。第一个就是现在传上来的这个。这个版本，提供了设计思路的由来和适当的过程的引导，但一些计算步骤由使用者自己来完成。我做这个版本的目的是希望，使用者能通过这个程序的使用明白校正的设计思路，至少是从我理解的程度上去理解。如果以后的师弟、师妹们能通过使用这个程序，更加轻松的掌握校正的方法。我就觉得我做了一件意义重大的贡献，我会感到自豪。所以也希望李老师能对其中的错误和不足进行指正。第二个版本是第一个版本的简化版，只给过程的引导，不给设计思路，主要是给用过第一个版本的同学一个加深联系的途径。(i don t know)

用matlab实现一个简单的积分求和运算，已成功运行(Using matlab to achieve a simple summation of the integral operator, has successfully run)

this is simple sample of RBF neural network main file: RBF.m

Bidirectional associative memory does heteroassociative processing. Here BAM algorithm is implemented.

用pca 和 lda 实现数据的降维,加快机器的特征提取的速度。(Pca and lda of data with dimension reduction, feature extraction to speed up the speed of the machine.)

剔除偶然误差法滤波，能够有效滤除采集信号中的噪声(eliminating-occasional bias filter)

说明：  Matlab demonstration script for DSB-AM modulation.