task2

关于水印技术的MATLAB源代码，具有很强的参考价值(On the MATLAB source code watermarking technology, has a strong reference value)

较详细的jabberd2源码，用于了解jabber的实现原理之用，适用于初学者(More detailed jabberd2 source for understanding jabber realization of the principle purposes for beginners)

This simulation file is in matlab software and is about the pwm closed loop chopper.

信号模拟，分析以及应用可以分析波形的变换，频率周期的转换等。(Ocean Wave Theory of Physical Oceanography hydrodynamic theories programming model)

数字信号的传输方式分为基带传输和带通传输，在实际应用中，大多数信道具有带通特性而不能直接传输基带信号。为了使数字信号在带通信道中传输，必须使用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。这种用数字基带信号控制载波，把数字基带信号变换为数字带通信号的过程称为数字调制。通常使用键控法来实现数字调制，比如对载波的振幅、频率和相位进行键控。(Transmission of digital signals into base band transmission and band-pass transmission, in practice, most of the channel with band-pass characteristics can not directly transmit base-band signal. In order to make the digital signal is transmitted with a communication channel, you must use the digital baseband signal to modulate the carrier to make the signal to match the characteristics of the channel. The digital baseband signal control with a carrier, the digital baseband signal conversion to digital bandpass signal is called digital modulation. Keying method is commonly used digital modulation, such as on the carrier' s amplitude, frequency and phase shift keying.)

一本内容比较全面的matlab教程，非常适合初学者以及查阅使用(The content of a more comprehensive tutorial matlab, very suitable for beginners as well as access to the use of)

说明：  4PSK的源程序 matlab程序示例(4PSK source of the examples Matlab)

homework 4 given to me by my lecturer enjoy

matlab simulink c++,java等一些程序语言。(matlab simulink c++, java programming language some.)

matlab从入门到精通，很经典很好的教材(matlab entry to the master, it is a classic good teaching)