公司财务预警建模

说明：  对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采 用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一 致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比(即频域内的信号与信号镜像的幅度比) ,通过镜像抑制比和幅度一致性,可求出接收机的I和Q两路分量之间的相位正交性。(IQ receiver for the two most important parameters, namely I and Q components of two-way consistency between the amplitude and phase orthogonality may be adopted calculated using the following method: to I, Q 2 signals, respectively for FFT, to find a frequency domain signal amplitude, can be considered as two-way component caused by the range of 1 the I, Q 2 signals into one complex signal for FFT, the spectrum demand of the received image rejection ratio (ie, frequency domain signal and magnitude of the signal mirror ratio), through the image rejection ratio and extent of consistency, the receiver can be derived I and Q phase between the two-way component orthogonality.)

说明：  先进PID控制及其MATLAB仿真 一书源程序 北京航空航天大学 刘金琨(advanced PID control and simulation of MATLAB source book a space aviation Beijing University, Hangzhou)

课本所有章节的代码，对应课本每章节每个案例代码均有，可以放心使用(Code for all chapters of the textbook)

说明：  数字通信（digital telecommunications）是用数字信号作为载体来传输消息，或用数字信号对载波进行数字调制后再传输的通信方式。它可传输电报、数字数据等数字信号，也可传输经过数字化处理的语声和图像等模拟信号。本文档是prokais数字通信的matlab例程第四章源码(Digital telecommunications is a communication method that USES digital signals as carriers to transmit messages, or USES digital signals to carry out digital modulation to the carriers and then transmits them. It can transmit digital signals, such as telegrams and digital data, as well as analog signals, such as voice and image, which have been digitized. This document is prokais digital communication matlab routines chapter four source code)

说明：  这个是MATLAB案例分析的扫满版，不用买书。可直接看。里面有多个程序案例。非常实用(This is case analysis of MATLAB version, don't have to buy a book.Can see directly.There are several application cases.Very practical)

此文件包含有限元分析与应用书籍pdf和相应的matlab源码(the book and the matlab code for the book---finite element analysis and application)

this is fuzzy of fan

sar图像去噪的几种新的方法，使用matlab实现智能预测控制算法，利用matlab写成的窄带噪声发生。( Several new methods sar image denoising, Use matlab intelligent predictive control algorithm, Using matlab written narrowband noise occurs.)

说明：  基于运动学模型的轨迹跟踪控制，无人驾驶车辆模型预测控制第二版第四章(Trajectory tracking control based on kinematic model, Chapter 4 of the second edition of model predictive control for driverless vehicles)

包括如下源码：2.3-元胞数组的使用方法、2.4-结构数组的使用方法、2.5-矩阵的使用方法、2.6-字符串的操作方法、2.7-判断函数的使用方法(Including the following source code: the use of the 2.3- cell array, the use of the 2.4- structure array, the use of the 2.5- matrix, the operation method of the 2.6- string, and the use of the 2.7- judgment function)