chengxu

说明：  包括了，阿丹姆斯法，龙格库塔法，灰色预测和改进灰色预测。(Including, Adam Williams method, Runge-Kutta method, gray forecasting and improved gray prediction.)

matlab 开发所需的constr。m源文件(constr.m fold)

《通信天线建模与matlab仿真分析》教材实例源代码，这个教材是国外的，国内买到的这本书都是没有源程序代码的。(" Communication antenna modeling and simulation matlab" materials source code examples, this material is foreign, domestic buy this book is no source code.)

测试陀螺仪随温度变化的特性，这是一个温箱测试的matlab处理程序！(Test gyroscope characteristics change with temperature, which is a warm-box testing matlab handler!)

本程序为多个不同脉冲程序。用于刺激或脉冲发生器的研究(This program is different pulse program. Or pulse generator for stimulating research)

风力发电最大功率点跟踪，采用爬山法，matlAB自带永磁同步电机，buck电路降压(Wind power maximum power point tracking, using climbing method, matlAB own permanent magnet synchronous motor, buck buck circuit)

最小均方误差变步长算法，用于系统参数辨识程序中是二阶系统参数辨识(this program is a LMS with vary steps and it was used in system identification.)

注水算法是根据某种准则，并根据信道状况对发送功率进行自适应分配，通常是信道状况好的时刻，多分配功率，信道差的时候，少分配功率，从而最大化传输速率。本文运用matlab通过对注水算法在mino系统中的三种不同的情况下进行了仿真，比较出在小信噪比时，相同信噪比下利用CSI的功率注水算法获得容量优于未知CSI的平均功率分配算法；相同容量下已知CSI信噪比比未知CSI时的信噪比小3dB.当信噪比增大到一定程度时，功率注水算法所获得的信道容量将收敛到平均功率分配的信道容量。(Water flooding algorithm is based on certain standards, and according to the channel condition to adaptive allocation of sending power, usually is a good moment, channel situation more distribution power, channel is poor, less power distribution, so as to maximize the transmission rate. This paper USES matlab based on water flooding algorithm in Austin system of three different cases are simulated and compared in small SNR, under the same SNR use CSI power allocation algorithm for capacity is superior to the average power allocation algorithm of unknown CSI Same capacity known CSI signal-to-noise ratio than the unknown CSI small signal-to-noise ratio of 3 db. When the signal-to-noise ratio increases to a certain degree, the power allocation algorithm for channel capacity will converge to the average power distribution channel capacity. )

通过给出的随机过程，该随机过程是由3个实正弦信号组成，归一化频率分别为0.1,0.25,0.27，其中相位是相互独立在【0,2*pi】上分布的随机相位；噪声是均值为0、方差为1的实高斯白噪声，信噪比为30db,30db,27db,观测样本数为N，通过bartlett法，Welch法，周期图法计算随机过程的概率谱(Given by stochastic process, the stochastic process is composed of three real sine signal, the normalized frequency were 0.1, 0.25, 0.27, including phase is independent in [0, 2* PI] on the distribution of random phase Noise variance is the mean to 0, 1 real gaussian white noise, signal to noise ratio of 30 db, 30 db, db, and the observation sample for N, by bartlett, Welch, periodogram spectrum method to calculate the probability of the random process)

对如下可靠性问题进行仿真 现在有两种方案：方案一是损坏一个更换一个；方案二是一旦有轴承损坏就全部更换．试通过计算机仿真对这两种方案做出评价．(The following issues on the reliability of simulation now there are two programs: a program to replace a damaged one program Second, once all the replacement of damaged bearings. Examination by computer simulation to assess the two programs.)