论文部分内容阅读
一引言相位锁定环路(PLL)在无线电遥测、信号处理和数字系统中的应用已越来越广泛。时间同步、FM解调、FSK解调、语言译码、频率复用、信号调节和频率合成及变换是PLL许多应用的几个方面。根据我单位科研任务的需要和系统总体指标的要求,我们开
I. INTRODUCTION Phase locked loops (PLLs) have become more widely used in radio telemetry, signal processing and digital systems. Time synchronization, FM demodulation, FSK demodulation, speech decoding, frequency multiplexing, signal conditioning and frequency synthesis and transform are several aspects of PLL applications. According to the needs of our unit scientific research tasks and the requirements of the overall system indicators, we open