1·It solves the problem of modulate and demodulation of differential signal and achieve data and power signal communication in coaxial-cable.
该模块解决了对差分信号“调制”、“解调”问题，实现了数据和电源在同轴电缆上的同步传输。
2·After a bandpass filter, QDPSK signal's symbol can be divided into steady section and transition section, so the demodulation and synchronization for the signal can be realized with DFT.
经过限带滤波后的QDPS K信号的码元波形可分为稳定区与过渡区，根据这一特点可以利用DFT方法来实现信号的解调和位同步。
3·Corresponding, may regard as the watermark examination process is a watermark signal demodulation process, is withdraws the watermark signal from the host carrier data.
相应地，可以把水印的检测过程看成是一个水印信号的解调过程，就是从宿主载体数据中提取水印信号。
4·DEMODULATOR, a device or circuit which performs the process of demodulation.
解调器，完成解调过程的装置或电路。
5·An automatic gain control circuit, its method, and demodulation apparatus capable of high-speed accurate level capture and preventing generation of an error and system destruction.
一种自动增益控制电路、其方法以及解调装置，能够高速精确地获取电平，防止产生误差和系统破坏。