A new approach to implement the 3dpsk signal modulation and demodulation system based on VHDL is presented.
对3dps K信号调制解调进行了研究，提出了一种用VHDL语言设计实现3dps K调制解调器的方案。
Chapter 2 introduces the principle of the MSK modulation and demodulation system and gives the corresponding structure.
第二章介绍了MSK调制解调原理，给出调制和解调的结构。
It is clearly clarified the conceptions of quadrature modulation, quadrature exciting, quadrature receiving, and quadrature demodulation in the MRI system.
阐明了MRI系统中所使用的正交调制、正交解调、正交激发和正交接收的概念。
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