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 中頻群延遲的均衡通過全通網(wǎng)絡(luò)來實現(xiàn),文中給出了信號傳輸中群延遲的概念以及全通網(wǎng)絡(luò)的概念,詳細(xì)分析了全通網(wǎng)絡(luò)用作群延遲均衡器的設(shè)計原理,并對設(shè)計進(jìn)行了計算機(jī)仿真,給出了滿足要求的設(shè)計方案。
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 中頻群延遲的均衡通過全通網(wǎng)絡(luò)來實現(xiàn),文中給出了信號傳輸中群延遲的概念以及全通網(wǎng)絡(luò)的概念,詳細(xì)分析了全通網(wǎng)絡(luò)用作群延遲均衡器的設(shè)計原理,并對設(shè)計進(jìn)行了計算機(jī)仿真,給出了滿足要求的設(shè)計方案。