摘要
实现了直接中频采样、数字下变频的8PSK全数字解调,分析了数字下变频、时钟恢复、载波恢复等模块的实现原理及方法。在Altera公司的QuartusⅡ环境下,用VHDL语言实现了8PSK全数字解调系统设计。最后在PCB板上利用Stratix Ⅱ芯片实现,并结合8PSK调制器进行功能验证,得到满意的结果。
In this paper, 8PSK demodulation on intermediate frequency is performed. Digital Down Conversion （DDC）, timing recovery, carrier recovery and other modules are analyzed. The relative VHDL codes are developed in QuartusⅡ of Ahera. Finally, the 8PSK demodulator is implemented in Stratix Ⅱ, it is connected with the 8PSK demodulator to verify the function and the result is satisfied.
出处
《电视技术》
北大核心
2010年第2期4-6,共3页
Video Engineering
