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- phase frequency distortion 相位频率失真
- A tone control system designed to compensate for frequency distortion in audio systems. 补偿器在音响系统中用来补偿频率扭曲的音调控制系统
- The Continuous Phase Frequency Shift Keying(CPFSK) signaling scheme has been widely used in mobile applications. 连续相位频移键控(CPFSK)信号广泛应用于便携式移动通信系统。
- In this paper, a simple method of plotting logarithmic phase frequency response curve for open-loop systems is advanced. 文章给出了绘制开环系统对数相频特性曲线的简便方法。
- Quantization noise analysis of linear phase frequency sampling FIR filters was discussed, and computation formula for measuring quantization noise was described in this paper. 主要分析了线性相位频率采样FIR滤波器中的量化噪声,并给出计算公式。
- Abstract: This paper describes a clock and data recovery（CDR）circuit for RFID tag, and a new phase frequency detector（PFD） is proposed for this CDR circuit for NRZ data. 文章摘要: 提出了一种适用于射频电子标签的时钟数据恢复电路，在电路中提出了一种适用于NRZ数据的新型鉴频鉴相器电路和自适应控制单元，能动态调节边沿检测器中延迟单元的延迟时间，使此时钟数据恢复电路具有大的锁定范围，且有结构简单易实现的特点。
- A low-cost, highly-accurate GPS carrier phase frequency syntonization system (GPS carrier phase-disciplined oscillator, GPSCDO) based on a single-frequency receiver is presented. 摘要:本论文介绍利用单频接收机及GPS载波相位观测量所组成一低成本且高精度的频率同步系统（GPS载波相位训练振荡器）。
- amplitude versus frequency distortion 振幅对频率的畸变
- intermediate frequency distortion 中频失真
- frequency distortion transmission impairment 频率失真传输减损
- fundamental frequency distortion 基波[频]失真
- This thesis proposes a new digital controlled oscillator (DCO) and a new phase frequency detector (PFD) architecture for the all digital phase-locked loop (ADPLL) with low power design. 本论文提出一个新的数位控制频率振荡器及一个新的相位频率侦测器之架构以设计一个低功率的全数位式锁相迴路。
- group delay frequency distortion 群迟延频率失真
- attenuation frequency distortion 衰减频率失真
- Phase frequency skip of atomic clock is one of an important factor to restrict accuracy and stability of standard time signal, so its analysis and detection is very important in time keeping work. 原子钟相频跳变是制约标准时间信号准确度和稳定度的关键因素之一,它的分析和检测在守时系统自动化监控中非常重要。
- group-delay frequency distortion 群迟延频率失真
- high frequency distortion finder 高频失真仪
- Continuous Phase Frequency Shift Keying HFR 连续相位移频键控
- CPFSK Continuous Phase Frequency Shift Keying 连续相位频移键控
- The child is going through a difficult phase. 那孩子正经历困难的阶段。
