0479-8023(2012)02-0200-09

这是我一自己编写的 通信系统的 QPSK的基本调制 有需要的朋友看看吧(This is what I have written a communication system for QPSK modulation of the basic right to see a friend in need)

电力系统的MATLAB-SIMULINK仿真与应用，包含主要原件模型、电力电子电路仿真、电力系统稳态暂态仿真等。(MATLAB-SIMULINK power system simulation and applications, including the main original model, the power electronic circuit simulation, steady state power system transient simulation Really so.)

多重判别分析，根据输入样本和标签自动生成判别空间(Multiple discriminant analysis, and labeling of the input sample space automatically generated discriminant)

基于块状导频的信道估计仿真，有LS,LMMSE信道估计算法(Based on the pilot block channel estimation simulation, has LS, LMMSE channel estimation algorithm)

在同温度和和照度下，n改变时，光生电流不变。(when the temperature and irradiation are the same the output photocurrent Iph of the same piece of solar cell remains constant although the diode quality factors and reverse saturation currents are different.)

基于三维TDOA的基站定位，采用了三维chan算法(Based on 3 d TDOA of base station positioning, three-dimensional chan algorithm is adopted)

基于Mcrochip的PMSM滑模观测器FOC控制(FOC PMSM control sliding mode observer)

这是一个标准的基本粒子群算法，可以在此基础上加入fun函数完成解。(This is a standard basic particle swarm algorithm, which can be added fun function to complete the solution.)

As we know, the energy needed for sensors should be electrical. So the rst step before start to work is to convert environmental energy to electrical one. Inside the node there are dierent components for sensing the area, collecting data and processing the data. So the main dierent part of this kind of nodes, in compare of WSN nodes, is the power part. Once the stored energy reach to a certain amount, the power supply for micro controller and transceiver will start to work. They will continue to work until they have energy, as soon as the energy nish, they stops and energy storage device start to work to save energy again. The other fact should be consider about EH-WSN node is that the available energy can change in dierent nodes. So every node has its own harvesting rate.

A source code to convert cartesian coordinates to Log-Polar coordinates for an image.