73462684DQPSK_Sim

Model of QPSK modulation

奇异值分解降噪技术，对各种信号进行处理，使用先进的MATLAB程序进行分解处理，达到理想的效果(SVD noise reduction on various signal processing, the use of advanced decomposition MATLAB processing procedures to achieve the desired results)

说明：  simulink仿真，是计算机仿真的一个例子(very good)

QAM解映射程序，在接受端，对发送端经过调制的信号解调，恢复出原始的信息。(QAM demapping process at the receiving end, the transmission side demodulates the modulated signal to recover the original information.)

面对大量的交通参数数据,如何快速建立高效的分类预测模型以尽快地对拥堵状态进行判别是一个重要的问题(Face a lot of traffic parameter data, how to quickly establish an efficient classification model to predict the state as soon as possible to discriminate on the congestion is an important issue)

采用非局部均值滤波（NLM filter）对图像进行去噪，能取得很好的效果。(Using non-local means filter (NLM filter) for image de-noising, can achieve good results.)

用于现代信号分析与处理课程，系统辨识、维纳滤波和自适应滤波(Used in modern signal analysis and processing programs, system identification, Wiener filtering and adaptive filtering)

说明：  BASIC MATLAB CODE FOR MATHMATICAL OPERATION

二维光子晶体弯折波导的计算程序，不过只有TM模，但TE模恨容易就能从中重写出来(Two-dimensional photonic crystal waveguide)

全国大学生数学建模2004年B题的程序。用Matlab编程。运行良好(Mathematical Contest in Modeling 2004 B title process. Using Matlab programming. Running well)