phase lock frequency synthesizer 锁相频率综合器 ; 锁相式频率合成器 phase and frequency characteristics 相频特性 phase/frequency detector 鉴频鉴相器 ..
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The auto power spectrum of phase function commonly has two extreme frequencies, and the corresponding frequency components decide the peak characteristics of phase function.
相函数的自功率谱一般具有两个峰值频率，其相应的频率分量决定相函数的波峰特征。
Other characteristics, such as frequency, wave shape, and phase balance are seldom recognized by the consumers but are given constant attention by the electric power utility engineers.
而其它方面的特性，如频率、电压波形、各相平衡则很少被用户认识到，但这恰恰受到电力部门工程师们的时刻关注。
The quantitative relationship between filtering parameters and amplitude-frequency and phase shift characteristics is analysed theoretically in this paper.
本文从理论上分析了滤波参数与幅频特性和相移特性的定量关系。
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