mlsigmoid

本文主要介绍了数字信号的基带传输原理及其在systemview下的实现方法(In this paper, the digital baseband signal transmission principle and its implementation under way in systemview)

关于GMSK的调制解调用viterbi算法实现。里面有仿真结果的误码率曲线。(GMSK modem calls on the viterbi algorithm. Inside curve of the BER simulation results.)

逆合成孔径雷达的多目标架次分辨，用线性调频信号模拟回波(Inverse synthetic aperture radar multi-target sorties resolution, analog echo signal with linear FM)

matlab在通信原理中的应用，信道编码BCH码仿真，希望大家能用得上！(matlab in Communication Theory in the application of channel coding BCH code simulation, hope that we can useful!)

最新版的网络控制系统NCS仿真程序。 (The latest version of the network control system NCS simulation program.)

image splitting by using k means clustering algorithm

里面包含cdma和ofdm两个方面的程序，非常难得的经典例子(Cdma and OFDM which contains two procedures, a very rare example of a classic)

根据有无固定基础设施，无线局域网又可分为BSS (Basic Service Set)和IBSS (Independent Basic Service Set)。我们要研究的ad hoc网络属于后者。假设在一个ad hoc网络中，移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道，测量接收到的信号功率X，其中X= I + N, I为接收到的干扰，N是噪声。移动节点只有在X＜INThre时，才可以发射。式中，INThre为背景噪声门限。 在仿真中，我们规定每个移动节点的发射功率是常数，PTx = 1W；接收节点接收机的灵敏度Smin = -80 dBm；信号质量 min = 2 dB；系统的背景噪声门限INThre = 1.2e-10。 (According to the availability of fixed infrastructure, wireless local area network can be divided into BSS (Basic Service Set) and IBSS (Independent Basic Service Set). We have to study the ad hoc network belong to the latter. Assuming in an ad hoc network, mobile node s transmission power is always constant PTX. To send data to the mobile node always monitor channel, measuring the received signal power X, which X = I+ N, I was received interference, N is the noise. Mobile node only when X <INThre when it is fired. Where, INThre threshold for background noise. In the simulation, we require that each mobile node s transmission power is constant, PTx = 1W receiver node receiver sensitivity Smin =-80 dBm signal quality )

说明：  加椒盐噪声，二维高斯低通滤波器，计算二维线性滤波(Add salt and pepper noise, Gaussian low-pass filter to calculate two-dimensional linear filtering)

经典的标量JA 模型的代码，非常适合磁滞模型初学者 我给出了两种实现方式的代码 一个用固定点迭代实现，可以容易变成c语言 另一个使用simulink 实现，可以加到控制图中作为一个子函数(the code is programmed following the classical paper of D.Jiles ,fellow of IEEE. The JA model is great and innovative work in magnetic material.)