WHIWKAWY

图像处理的matlab代码，图像预处理的基本程序，matlab语言基础(Image processing matlab code, image pre-processing of the basic procedures, matlab Language Infrastructure)

说明：  implementation of simple Evolutionary Programming to find minimum value from given function.

本程序在matlab环境下，基于量子遗传算法对pid控制器进行优化控制,从而完成性能更优(The program in matlab environment, based on quantum genetic algorithm to optimize control of pid controller, thus completing the better performance)

《MATLAB程序设计教程》电子教案-266，希望对大家有用("MATLAB Programming Guide" electronic templates-266, a member of the useful! !)

Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I signal, and the other is called the Q signal. Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase shift, each can be modulated independently, transmitted over the same frequency band, and separated by demodulation at the receiver. For a given available bandwidth, QAM enables data transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation in the bit error ratio (BER).

一个典型闭环控制系统的组成是很复杂的。通常都由给定系统输入量的给定元件、产生偏差信号的比较元件、对偏差信号进行放大的放大元件、直接对被控对象起作用的执行元件、对系统进行补偿的校正元件及检测被控对象的测量元件等典型环节组成。而控制系统设计则是根据生产工艺的要求确定完成工作的必要的组成控制系统的环节，确定环节的参数、确定控制方式、对所设计的系统进行仿真、校正使其符合设计要求。同时根据生产工艺对系统的稳、快、准等具体指标选择合适的控制元件。自动控制原理的时域分析法，根轨迹法，频域分析法，以及各种补偿（校正）装置的作用及用法，能够利用不同的分析法对给定系统进行性能分析，能根据不同的系统性能指标要求进行合理的系统设计，并调试满足系统的指标。(A composition of the typical closed-loop control system is very complicated. Usually produced by a given component to given system input, resulting in a comparison of the deviation signal component, and the amplified error signal amplification components directly to the controlled object to the implementation of the role of components of the system correction components and testing of the compensation typical aspects of the composition of the measuring element of the control object. Control system design is part of necessary component for completing the work according to the requirements of the production process control system, to determine the link parameters to determine the control method, simulation of system design, calibration to meet the design requirements. Production process on the system stable, fast, accurate and specific indicators to select the appropriate control elements. Automatic control theory of time-domain analysis, root locus method, frequency domain analysis, as )

单边带调制信号产生和解调的仿真，实现单边带调制解决调制中遇到的问题(Single sideband modulation signal generation and demodulation simulation, to achieve single sideband modulation problem encountered in the modulator)

经验正交函数分析方法，是一种分析矩阵数据中的结构特征，提取主要数据特征量的一种方 法。常用于海洋、气象专业。(Empirical orthogonal function analysis method is an analysis of the data structure of the matrix, a method of extracting the main characteristics of the data volume. Commonly used in the marine, meteorology profession.)

1. Linear Model Estimation: using time and frequency domain data 2. Nonlinear Black Box Model Estimation 3. Nonlinear Grey Box Model Estimation

this file contains psk and qpsk modulation and de modulation part