... phase locking锁相 phase locking technique锁相技术 appearance approach locking相位模式同步 ...
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...键词：混频原理；锁相环技术；单片机；CPLD；相关计数 [gap=896]Key words: Frequency mixing theory; Phase locking technique; SCM(single-chip computer); CPLD; Correlative counting method ..
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Sampling phase locking technique combines the advantages of multiplying reference signal from crystal oscillators and digital phase locked loop; therefore, it features simple structure, high-order multiplying and low phase noise.
取样锁相技术结合了高次倍频和数字分频反馈锁相两种技术的优点,具有结构简单、倍频次数高、相位噪声低、重量轻的优点。
参考来源 - X波段低相噪DRO频率源研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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