A new frequency correction method was obtained,suitable for the situation of high-order harmonic generation,and this method was proved by two simulation experiments.
采用相位差法對工頻頻率測量進(jìn)行了研究,推出了頻率校正的計(jì)算公式;研究了窗函數(shù)和窗長度的選擇對校正精度和響應(yīng)時(shí)間的影響,在窗長度足夠長的情況下,采用布萊克曼窗、凱澤窗有很高的校正精度;為提高響應(yīng)速度,推導(dǎo)出了窗長為一個(gè)工頻周期的傅立葉系數(shù)的計(jì)算公式,得出只含單頻成分時(shí),仍能夠采用相位差法對頻率進(jìn)行校正,而當(dāng)含有高次諧波時(shí)不宜直接采用相位差法的結(jié)論;還得到一種新的頻率校正方法,該方法適合含有高次諧波的情況;通過給出的兩種模型進(jìn)行仿真實(shí)驗(yàn),驗(yàn)證了理論結(jié)果的正確性。
Study on Fast Main Frequency-Correction Parameters Based on Phase Difference Method
基于相位差法的快速工頻頻率校正的研究
Study on the frequency offset correction of TDD-LTE synchronization signal based on ZC sequence
基于ZC序列的TDD-LTE同步信號頻率校正研究
Slip Frequency Correction Method Base on Rotor Flux q Axis Component for Induction Machine Indirect Vector Control System
基于轉(zhuǎn)子磁鏈q軸分量的異步電機(jī)間接矢量控制轉(zhuǎn)差頻率校正
video frequency/IF/RF pre-correction
視頻、中頻、射頻預(yù)校正
APFC Control Circuit Design of Inverter Air-Conditioner
變頻空調(diào)中功率因數(shù)校正的控制電路設(shè)計(jì)
A Low Cost APFC of AC-DC-AC Converter
低成本變頻調(diào)速器功率因數(shù)校正的改進(jìn)
Array Calibrating Methords using the of Frequency Response
LTI系統(tǒng)的頻率響應(yīng)在陣列校正中的應(yīng)用
Power Factor Correction of the DC-inverter Compressor Driver
直流變頻壓縮機(jī)驅(qū)動器的功率因數(shù)校正
Application of Windowing Phase Difference Correcting Algorithm in Frequency Measurements of Electric Network Measurements
加窗相位差校正算法在電網(wǎng)頻率測量中的應(yīng)用
Wave equation datum correction in frequency-wavenumber (f-k) domain.
在頻率—波數(shù)域?qū)崿F(xiàn)波動方程基準(zhǔn)面校正
Cascaded Approach for Correcting Ionospheric Frequency Modulation in HF Sky-Wave Radars
校正高頻天波雷達(dá)電離層頻率調(diào)制的級聯(lián)方法(英文)
lognormal cumulative frequency
對數(shù)正態(tài)累積頻率圖
Design of High Frequency Switch Power with APFC and Soft Switch;
具有功率因數(shù)校正和軟開關(guān)的高頻開關(guān)電源的設(shè)計(jì)
Analysis of medium-frequency oscillation in the Boost power factor correction converter with average current mode control
平均電流控制型Boost功率因數(shù)校正變換器中的中頻振蕩現(xiàn)象分析
Occurring with normal or healthy frequency.
正常頻率的按正?；蚪】档念l率發(fā)生的
quartz crystal calibration equipment
石英晶體頻率校準(zhǔn)儀
field tilt correctio
場頻鋸齒形波校正信號
The voltages set up are of normal operating frequency.
由此引起的過電壓頻率通常為正常的工作頻率。
