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- phase frequency curve 相頻曲線
- In this paper, a simple method of plotting logarithmic phase frequency response curve for open-loop systems is advanced. 文章給出了繪製開環系統對數相頻特性曲線的簡便方法。
- The general form or a quantity indicative of the general form of a statistical frequency curve near the mean of the distribution. 峰度一種統計頻率曲線接近分佈中心時的大致狀態或指示這種狀態的數量
- The Continuous Phase Frequency Shift Keying(CPFSK) signaling scheme has been widely used in mobile applications. 連續相位頻移鍵控(CPFSK)信號廣泛應用於攜帶型移動通信系統。
- Quantization noise analysis of linear phase frequency sampling FIR filters was discussed, and computation formula for measuring quantization noise was described in this paper. 主要分析了線性相位頻率採樣FIR濾波器中的量化雜訊,並給出計算公式。
- 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: 提出了一種適用於射頻電子標籤的時鐘數據恢複電路，在電路中提出了一種適用於NRZ數據的新型鑒頻鑒相器電路和自適應控制單元，能動態調節邊沿檢測器中延遲單元的延遲時間，使此時鐘數據恢複電路具有大的鎖定範圍，且有結構簡單易實現的特點。
- 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:本論文介紹利用單頻接收機及GPS載波相位觀測量所組成一低成本且高精度的頻率同步系統（GPS載波相位訓練振蕩器）。
- The distribution of zero and pole is analyzed to obtain several features of carotid sclerosis such as rp.These features differ from those based on the maximum frequency curve and are also efficient. 接著，本文從多普勒音頻信號的建模出發，建立頸動脈血管的零極點模型，分析極點的分佈情況，提取一定的特徵參數作為血管硬化的判據（如rP等），從而為臨床診斷服務。
- 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. 本論文提出一個新的數位控制頻率振蕩器及一個新的相位頻率偵測器之架構以設計一個低功率的全數位式鎖相迴路。
- 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. 原子鐘相頻跳變是制約標準時間信號準確度和穩定度的關鍵因素之一,它的分析和檢測在守時系統自動化監控中非常重要。
- Distribution curve cumulative frequency curve 分佈曲線;分配銷售曲線重複計算
- The method quantifies the system robustness based on cumulative frequency curves. 該方法能以累積頻率曲線的形式直觀地對任意性能水平下不同控制系統的魯棒性能進行比較；
- Discussion on Establishing Sediment Frequency Curve 關於建立泥沙頻率曲線問題的探討
- relative cumulative frequency curve 相對累積頻率曲線
- amplitude versus frequency curve 振幅頻率特性曲線
- ogive cumulative frequency curve 累積頻數曲線
- The Researching of plotting Logarithmic Phase Frequency Response Curve 關於繪製相頻圖的研究
- differential size frequency curve 微分粒度頻率曲線
- Continuous Phase Frequency Shift Keying HFR 連續相位移頻鍵控
- The child is going through a difficult phase. 那孩子正經歷困難的階段。
