peak frequency 中文意思是什麼
peak frequency
解釋
峰值頻率-
Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。 -
Courier peak of frequency domain dielectric spectroscopy
頻域介電譜中的居里峰 -
The frequency curve of transverse distribution of the wheel track on divided ways reveals that the frazzled damage of highly channelizing expressway cement concrete pavement largely occurs in the peak range of distribution curve of the wheel track
摘要分車道行駛輪跡橫向分佈頻率曲線顯示，渠化程度較高的高速公路水泥混凝土路面磨損破壞主要集中在行車道輪跡峰值范圍。 -
E., the carrier frequency of a gaussian beam deviates from the resonant frequency of a fabry - perot etalon ), variations of the peak intensity, the position of the peak intensity and the dwdm systems, has received considerable attention. in this work, after taking into account the wavelength - depended reflectivity distribution profile of a fiber bragg grating, the oscillation wavelength # _ ( 1 ) of long external cavity fiber bragg grat
與共振情況（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率一致）相比，非共振條件（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率存在偏差）一透射光束的峰值強度、峰值強度所對應的位置、以及光斑的大小隨入射角的變化都發生了顯著的改變。 -
Principal conclusions were drawn as the following : the non compatibility of pressure or velocity of the gas on both sides of the contact surface is the cause of the formation of shock wave ; the heating effect of reflective shock wave to driving gas during charging or exhausting process is the internal mechanism of peak oscillating effect, and all the factors that influence the formation and the running of the shock wave will influence the peak oscillating frequency, cooling effect
主要結論如下：熱分離機內激波形成的原因是射氣瞬間接觸面兩側壓力和速度不相容；峰值振蕩效應的內在機制為反射激波對充氣階段的驅動氣或低溫排氣的加熱，凡是影響激波形成及運動的因素都將對峰值振蕩頻率、冷效應及熱效應產生影響；當充、排氣時間比為0 . 1763時，最佳射流激勵頻率出現在高階峰值振蕩頻率上。 -
Evening peak hour frequency minute
晚上繁忙時間班次（分鐘） -
The research results show that the influence of sampling frequency, sampling error of peak value, strobe - position and strobe - width on fft and ifft is obvious
研究發現，超聲信號的采樣頻率、采樣特徵點、閘門位置及閘門寬度對超聲信號的fft及ifft結果有明顯的影響。 -
The model considers peak value of lightning current, tower grounding resistance, tower style, line surge impedance, power frequency voltage and distance between towers
模型中考慮了雷電流幅值、桿塔沖擊接地電阻、桿塔具體形狀、尺寸、桿塔波阻抗、工頻電壓及檔距等因素的影響。 -
Adjusting digital potentiometer in controlling circuits of sps and capacitor charging and discharging circuit separately with industry control computer ( icc ), the peak value and repeat frequency of output pulse can be adjusted separately. controlling relays to choose different capacitors with icc, the width of output pulse can be adjusted
利用工控機分別調節開關式穩壓電源控制電路和電容充放電控制電路中的數字電位器，就能分別調節輸出陡脈沖的幅值和重復頻率；利用工控機控制繼電器選擇不同的充放電電容，就能調節輸出陡脈沖的脈寬。 -
For each song, wang recorded only the peak and trough of frequency in every 10 - millisecond segment
他將每一首歌切成以10毫秒為單位的區段，只錄下其頻率的波峰和波谷。 -
Work frequency of the source current module is 50khz, and peak - peak value is 1ma
恆流源模塊工作頻率為50khz 、峰峰值電流為1ma 。 -
The products are primarily used in 1. f. t, therefore appropriate t. c types shall be used to match ferromagnetic cores. if not, peak frequency will shift
一、本品主要用於中周配套，因此選用電容器之t . c （溫度補償）類別應與瓷芯相匹配，如不匹配，易造成高低溫諧振飄移。 -
Signalling tone peak frequency deviation
信令音峰值頻偏 -
Wideband data peak frequency deviation
寬帶數據峰值頻偏 -
Peak frequency deviation
頻率最大偏差 -
On the basis of the former research works, we present the detecting method as follows : for the narrow band characteristic of the track signal we use under - sampling instead of nyquist sampling to reduce the sampling rate. as to the carrier frequency, the spectrum of the 18 - information frequency - shift track signal has two peaks, then the carrier frequency is the average of the two peak frequency, to um - 71 jointless track signal, it has only one peak, then the carrier frequency is the peak frequency
針對移頻軌道信號的窄帶特性提出了使用欠采樣技術代替奈奎斯特采樣的方法，以降低信號的采樣頻率;國產18信息移頻軌道信號頻譜具有雙峰，雙峰頻率平均值就是信號的載頻頻率，而um - 71無絕緣軌道信號頻譜單峰，峰值頻率即為信號的載頻頻率。 -
In frequency domain it is different in the amplitude and main peak frequency range
五種害蟲聲信號的峰值頻率和主要頻域范圍也存在差異。 -
The correlation between broad - band spectral index and peak frequency for xbls and fsrqs
和平譜射電類星體間峰值頻率與光譜指數的相關性分析 -
The last chapter presents the result of our studies of how to use the peak frequency of synchrotron emission to classify the bl lac objects and the action of the peak frequency in bl lac objects. we sustain that the peak frequency can become a well classificatory criteria of bl lac objects and conceive that there are some systemic difference between xbls and rbls, and the difference is not only the result of choice
本文最後一章重點介紹了同步峰頻在bllac天體分類中的作用，同時介紹了作者在相關領域作的一些研究工作，我們的工作進一步支持了峰頻作為bllac天體的一個有效的分類標準的觀點，進一步猜想bllac天體的兩個子類xbl和rbl的物理性質可能存在本質差異，而不僅是選擇效應的結果。 -
The method has been used to separate the frequent spectra of incident waves and reflected waves of the composed wave that are simulated by a numerical method. the results shown that the frequent spectra of incident waves and reflected waves being computed are consistent with the target spectrum and the bulk reflection coefficient is too. the frequent spectrum of reflection coefficient is same as the input round the peak frequency
將此方法用模擬合成波波列的分離計算，結果表明，分離的入、反射波頻譜與輸入的靶譜符合良好，且計算的總體反射系數與輸入的總體反射系數一致，計算得到的反射系數頻率譜在峰頻附近與輸入值符合良好，說明該分析方法是可靠的。
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