本文简述了锁相环两点注入的调频原理。为了证实用这种方法能获得平坦的调频特性
设计和构制了一个工作在12.5MHz 的锁相环及两点注入调频的调制网络。结果表明
实验与理论分析很好地一致。
The principle of two-point frequency modulation of phase-locked loop (PLL) is briefly described.A simple PLL
operating at 12.5 MHz
and modulation networks of two- point FM are designed and constructed to demonstrate that flat FM responses can be achie- ved with this method.Experimental results are given which show a good correspondence with the theoretical analysis.
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