4wirelesscomm

直接序列扩频的系统仿真，适合理解原理，很实用(Simulation of direct sequence spread spectrum system for understanding the principle, it is practical)

一个计算单极子天线表面电流的小程序，需要调试！(a calculated monopole antenna surface currents in small procedures, require debugging!)

-LTE_link_levek simulation

gravity turn for a moon landing program this source code simulate the landing of a moon tracker

说明：  含风电机组的配电网可靠性评估算法，用ARMA模型预测风速并确定风速分布(An algorithm for reliability evaluation of distribution network with wind turbines, ARMA model is used to predict wind speed and determine wind speed distribution)

OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。本程序实现OFDM与QPSK技术的比较(This program realization technology and the OFDM QPSK technology)

这是一个彩色图片转换为弧度图片转换的程序。可将灰度图片进行任意部分的存储，并存储在给定位置。(This is a process of changing color image into gray image. In the sanmetime ,it can srore any part of the gray image into the given place.)

Recursive Least Squared method is implemented this time by adding noise to input. This program objective is to identified parameters of third order transfer function.

Mablab工具包 机械系统建模仿真(Mablab Kit mechanical system modeling and simulation)

tutorial matlab berbahasa indonesia