Matlab_ex3

二维码编码，QR码实现，Two-dimensional coding, QR code to achieve, Two-dimensional coding(Two-dimensional coding, QR code to achieve, Two-dimensional coding)

说明：  该代码利用Romberg算法，实现了给定函数在特定精度的数值积分。(The code using Romberg algorithm to achieve a given function in a specific numerical integration accuracy.)

牛顿迭代法求无约束一维极值问题的速度相当快，而且还有一个好处就是能高度逼近最优值。(Newton iteration method for one-dimensional unconstrained extremum problem very fast, but there is a benefit that can be highly close to the optimal value.)

program that will calculate how many odd integers in a given interval from 1 to N, where N is entered through the keyboard. The program will print out the total number of odd numbers in a given interval as the product of all odd numbers in that interval. As a result, the program should print "at intervals of 1 to N has <x> odd numbers and their product is <proizvod>.".

不完全微分PID算法Matlab仿真程序。适用于控制理论领域。(Incomplete differential PID algorithm Matlab simulation program. Applicable to the field of control theory.)

Program for ofdm modulation using awgn channel

龙格库塔法的求解，将精确解（1）和龙格库塔法的图像放在子图一中，将精确解（2）和龙格库塔法的图像放在子图一中。(Runge-Kutta)

DV-HOP定位算法的MATLAB仿真 (DV-HOP positioning algorithm MATLAB simulation)

matlab实现8PSK TCM网格编码调制，包含维特比译码和与未编码的QPSK误码性能比较(matlab implementation of TCM trellis coded modulation 8PSK, including Viterbi decoding and uncoded QPSK BER performance)

The QSystemSemaphore class provides a general counting system semaphore for Linux.