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来源：百度知道 编辑：UC知道 时间：2024/06/24 10:52:09
本论文用锁相环路合成法设计频率合成器，利用AT89S51单片机设计产生M序列，基于MC145151芯片设计频率合成器。分析了锁相环频率合成器的工作原理和线性化模型。环路滤波器是频率合成器能稳定上作的输出低相位噪声、低杂散信号的关键部件，环路滤波器的具体计算方法，并从理论上推导了满足系统指标要求的环路滤波器参数。然后，用仿真软件matlab建立了锁相环频率合成器的稳定性模型、并进行了具体仿真，根据理论和仿真计算得到了相应的元件参数。最后，设计了具体的验证方案并完成了验证实验;实验结果实现了主要性能指标。

This paper used PLL synthesis Design Synthesis, AT89S51 use of a microcontroller design M series, based on the MC145151 chip design Synthesis. Analysis of the PLL Synthesis of the working principle and linear model. Loop filter is Synthesis can make steady output phase noise, low spurious signal of the key components, loop filter specific calculation method, and theoretically the system to meet requirements of the loop filter indicators Parameters. Then, using simulation software matlab a PLL Synthesis model of stability, and the specific simulation, based on theory and simulation of the corresponding components parameters. Finally, the design of a specific certification programme and completed verification experiment; experimental results achieved a major performance indicators.
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