Digital-Communication-in-Matlab

it is code for matlab..........................

分段平均法功率谱分析，不同数据重叠长度对结果的影响 (Sub-average power spectrum analysis, the results of different data length on the impact of overlapping)

content file describe awgn channel for coperative channel

北京航空航天大学出版的matlab从零进阶的原程序代码第1章案例21.1源代码(Beijing University of Aeronautics and Astronautics published matlab from the original program code zero Advanced Case 21.1)

qpsk调制与解调 用MATLAB系统自带函数 有自己的分析注释(QPSK modulation and demodulation)

最小二乘法（又称最小平方法）是一种数学优化技术。它通过最小化误差的平方和寻找数据的最佳函数匹配。利用最小二乘法可以简便地求得未知的数据，并使得这些求得的数据与实际数据之间误差的平方和为最小。最小二乘法还可用于曲线拟合。其他一些优化问题也可通过最小化能量或最大化熵用最小二乘法来表达。 (Least-squares method (also known as least squares) is a mathematical optimization techniques. It does this by minimizing the square error of the data and find the best match function. The least square method can easily obtain the unknown data, and makes these data and the actual data obtained between the square and the smallest error. Least-squares curve fitting method can also be used. Other optimization problems can be maximized by minimizing the energy or entropy of the least square method to express. )

测量数据处理中闭合导线、支导线、附合导线的计算代码三个，另外两个是牛顿迭代法和GaussSeidel迭代法。(Measurement Data Processing Closed Traverse, Traverse, with a combined computing code three conductors, two other Newton iterative method and GaussSeidel iterative methods.)

PSPICE and MATLAB for Electronics

Implementation of Transposition Cipher in C

以及简易倒立摆,实现一级PID建议算法控制倒立摆不倒的程序，仅做参考(yi ji jian y idao li bai)