based on that and the actual request, the thesis focuses on two ways of frequency synthesis : phase-loop locked and phase-loop locked + direct digital synthesis . then it introduces the concepts of group-delay and all-pass network, analyzes the theory of equalizing the group-delay of filter by all-pass network, simulates the design and sums up a perfect designing and debugging precept 中频群延迟的均衡通过全通网络来实现,文中给出了信号传输中群延迟的概念以及全通网络的概念,详细分析了全通网络用作群延迟均衡器的设计原理,并对设计进行了计算机仿真,给出了满足要求的设计方案。
based on that and the actual request, the thesis focuses on two ways of frequency synthesis : phase-loop locked and phase-loop locked + direct digital synthesis . then it introduces the concepts of group-delay and all-pass network, analyzes the theory of equalizing the group-delay of filter by all-pass network, simulates the design and sums up a perfect designing and debugging precept 中频群延迟的均衡通过全通网络来实现,文中给出了信号传输中群延迟的概念以及全通网络的概念,详细分析了全通网络用作群延迟均衡器的设计原理,并对设计进行了计算机仿真,给出了满足要求的设计方案。