TWO_STEP

定义surface distance， matlab 代码，可以运行，计算两个曲面 球面之间的距离(surface ellipsoid distance calculation )

All matlab codes for digital communication in matlab simulink for students. MATLAB_Simulink_for_Digital_Communication_program_for_student

matlab入门经典教程--百看不厌，详细讲解matlab入门的基本知识(Introduction to Classical matlab tutorial- never get tired)

本程序主要介绍了基于OFDM的认知无线电系统中最优功率分配的算法，从而确定CU的最大发射功率。(This procedure introduces a OFDM based cognitive radio system with optimal power allocation algorithm, so as to determine the CU maximum transmission power. )

该程序是利用电磁波测得两处之间的距离，程序不错，稍加修改即可测得很多距离值。(It tells us how to calculate the distance between two places ,using the EM )

soumekh的SAR成像源代码，非常翔实经典！(soumekh SAR imaging source code, very informative classic!)

《系统辨识与MATLAB仿真.pdf》 侯媛彬 汪梅 王立琦 本书共分8章，第1、2章为辨识的基本概念、理论基础和古典辨识方法；第3至6章为现代辨识内容，其中第3章是最小二乘参数辨识，第4章是梯度校正参数辨识，第5章是极大似然法的参数辨识方法，第6章是自适应参数辨识；第7、8章为复杂的非线性系统的智能辨识和混沌辨识，其中第7章是非线性系统的神经网络辨识；第8章是Volterra辨识方法、复杂系统的混沌现象及其辨识。从第2至7章，各章均包含开发的相应程序及其程序剖析。 (" System Identification and MATLAB simulation. Pdf" Hou Yuanbin Wang Mei Wang Liqi book is divided into eight chapters, Chapters 1 and 2 for the identification of the basic concepts, theoretical foundation and classical identification methods first 3-6 chapters of modern identification content, Chapter 3 is the least squares parameter identification, Chapter 4 is the gradient correction parameter identification, Chapter 5 is the maximum likelihood parameter identification method, Chapter 6 is an adaptive parameter identification Chapters 7 and 8 for complex Intelligent identification of nonlinear systems and chaos identification, which is in Chapter 7 of the neural network nonlinear system identification Chapter 8 is Volterra identification method, complex systems and chaos identification. From the first 2-7 chapters, each chapter contains procedures for the development of appropriate programs and their analysis.)

层次分析法,解决多属性决策问题,MATLAB源代码.R2019版本测试通过,只需要修改里面的评判矩阵数据即可(Analytic Hierarchy Process (AHP) to solve multi-attribute decision-making problems, the source code of MATLAB. R2019 version passed the test.)

测距仪测距的过程中，由于受到仪器本身的系统误差以及外界环境影响，会造成测距精度的下降。为了提高测距的精度，我们需要对测距的结果进行改正，可以分为三种类型的改正：仪器常数的改正、气象改正和倾斜改正。(Rangefinder ranging process, due to systematic errors in the instrument itself and the external influences, ranging accuracy will result in a decline. In order to improve ranging accuracy, we need to correct the results of the distance, can be divided into three types of corrections: the correction instrument constant, meteorological correction and inclination correction.)

WAVE LET PID FOR aqm