changedU

QPSK系统的误码率仿真，运用MATLAB编程(QPSK BER simulation, using MATLAB programming)

exploring graph layout

说明：  此程序是关于小波变换用于故障信号分析和处理的程序。(this procedure is used on the wavelet transform fault signal analysis and processing procedures.)

仿真效果非常好，模拟数据分析处理的过程，旋转机械二维全息谱计算的实用例程。( Simulation of the effect is very good, Analog data analysis processing, Rotating Machinery dimensional hologram of practical spectrum calculation routines.)

摘要 随着火电机组向大容量、高参数和高效率方向发展，对机组热工自动控制系统控制品质的要求也随之提高。在热工过程中，大多数热工对象具有较大的惯性和迟延，且是非线性和慢时变的，部分对象还是多变量的，因而具有很大的不确定性和强耦合性。这就难以建立精确的数学模型，使采用固定参数的PID控制器不能与生产上越来越高的控制要求相适应。 本文主要是研究动态矩阵控制算法在主汽温控制方面的应用。首先，分析了当前火电厂主汽温的控制方式和常规的控制方法，以及影响主汽温变化的各种扰动因素；然后，介绍了动态矩阵控制算法的原理，并基于此原理设计了DMC主汽温控制系统；并且与传统的串级PID控制系统进行了比较，仿真结果表明动态矩阵控制算法的响应速度快，且没有超调，鲁棒性好，控制品质明显优于常规PID控制。 关键词：主汽温；动态矩阵控制；DMC；matlab仿真 (Abstract Developing with the tendency to large capacity, high parameters and high efficiency of fossil-fired unit, the control trait request for thermodynamic automatic control systems is heightened .In thermodynamic process, most thermodynamic objects have large inertia and delay, and are nonlinear and time-variable furthermore, some of them are multi-variable, and also has large uncertainty and strong coupling. This makes it difficult to construct accurate mathematic models, and makes PID controllers with fixed parameters hardly adapted to higher and higher control request in production This article is mainly the research of the application of dynamic matrix control in the main temperature control system. First, it analyzed the conventional control method in the current thermoelectric power station steam system, and the affects of every kind of perturbation factor in the main temperature control system. Then it introduced the principle of dynamic matrix control algorithm, and desi)

Roy Osherove - The Art of Unit Testing - 2014 in pdf format. Great book for learnin Unit test for beginners.

simulation on matlab a DCE-MRI like experiment.

说明：  matlab实现的bpsk调制解调，并给出图形，能够形象理解BPSK调制解调的波形，加深对通信原理中BPSK的理解(matlab implementation bpsk modem, and gives graphic, image understanding that BPSK modulation and demodulation of the waveform, to deepen the understanding of communication theory in the BPSK)

mo phogn trong matlab

基于客观测试方法针对普通话的AMR 话音激活检测算法性能分析(Mandarin based on objective testing methods for the AMR voice activity detection algorithm performance analysis)