DQPSK

用专门的例子介绍matlab中的各个绘图指令的用法。简单易懂(With special introduction matlab example of the usage of the various graphics commands. Easy-to-read)

基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析(Disturbance detection method based on the results of short-term power quality S transform from S Mode S transform matrix and complex matrix S to extract the required data and use it to various disturbances in case of voltage dips in amplitude, phase jump variable, duration and content of harmonic analysis)

说明：  数学建模中的图论知识来研究最短路径的问题，利用Dijkstra算法matlab实现(Graph theory knowledge in mathematical modeling is used to study the shortest path problem, which is realized by using Dijkstra algorithm matlab.)

it is a file to watermark the image file in matlab

说明：  数据经过多进制QAM调制下，通过高斯信道的误码率比较(the rand data are modulated by MQAM ，then pass the gausschannel ，get the compared result of ber.)

SPIHT-set partitioning in hierarchical tree algorithm. it is also used for compression. here list of insignificant pixels, list of significant pixels, list of significant sets

matlab版本的OLELM算法（在线极速序列机器学习算法），能进行模型训练和函数拟合。(matlab version OLELM algorithm (line speed serial machine learning algorithms), capable of model training and function fitting.)

基于前推回代发的潮流计算 可计算网损和节点电压，节点有功无功(Calculate calculate net loss and node voltage, active and reactive nodes based on forward and backward substitution hair trend)

说明：  一个很好的粒子滤波源程序。对初学者有一定的帮助。(A good source particle filter. Be helpful for beginners.)

居于matlab的数字滤波器的设计,基于Matlab的简单语音处理系统设计(lvboqisheji)