頻率解析度 的英文怎麼說

中文拼音 [bīnlǜjiěxīdù]
頻率解析度 英文
frequency resolution
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 解 : 解動詞（解送） send under guard
  • 析 : Ⅰ動詞1. （分開; 散開） divide; separate 2. （分析） analyse; dissect; resolve Ⅱ名詞（姓氏） a surname
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 頻率 : frequency; rate
  • 解析度 : degree of resolution
  • 解析 : analysis; resolution; analyzing; resolving解析幾何 [數學] analytic geometry; cartesian geometry; ...
  1. The amplitudes of the two ffts are the same, but their phases, < px and < p2, changes with the range differently

    Rao下限，在信噪比為6db ， fft長度為1024的情況下，頻率估計均方根誤差小於fft頻率解析度的1 。
  2. In order to avoid spectrum error due to energy leakage, the thesis research on identification of parameters of two close frequency components in discrete spectrum analysis, and simulation result shows the validity of the method

    針對由於能量泄漏造成的頻譜誤差，深入研究了密集頻譜的頻域參數識別法，從理論上加以推導，並通過模擬證明了該方法的有效性，可以識別1個頻率解析度以內的兩臨近頻率分量。
  3. The merits of dds such as super fine frequency resdutlon 、 high frequency accuracy 、 easy programmed can be in combination with the excellent character of narrow - band tracing filter merits of pll

    它可以將dds的超高頻率解析度、高頻率精確度、容易實現程式控制等優點與鎖相環良好的窄帶跟蹤濾波特性相結合。
  4. By making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution 、 high frequency accuracy 、 very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step. while the electronically tuned filter abates the image interference and notably improves the selectivity. the theorem of frequency synthesizer and center - frequency - fixed filter is simply but adequately introduced first in this paper

    課題中所採用的pll或dds pll鎖相頻率合成方法充分發揮鎖相環良好的窄帶跟蹤濾波特性，並結合dds的高頻率解析度、高頻率精確度和高速頻率捷變等優點，分別實現了系統所要求的高質量寬帶本振源和小步長頻率捷變；採用電調諧選頻技術，則大大改善了接收機的選擇性和抗干擾能力。
  5. In this system two oscillator are used for mixing. pll for high local oscillator and dds + pll for low local oscillator. by making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution, high frequency accuracy, very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step

    系統採用兩次混頻，其中高本振的設計採用pll鎖相環頻率合成來實現，充分發揮了鎖相環頻率合成器的優良特性，實現了系統所要求的高質量寬頻帶本振源；低本振採用pll + dds頻率合成來實現，結合pll優良的鎖相特性與dds的高頻率解析度、高頻率精確度等優點，實現了頻率的小步進高精度合成。
  6. In receiver system development, there are some innovations in the design of high linearity and high dynamic range, also in the circuitry realization

    接收機採用兩次變頻超外差式結構設計，第一中頻為高中頻。接收機頻率合成器採用dds來實現1hz的頻率解析度。
  7. Based on the dds technology, the waveform generator first stored data in high speed ram, then used dac to synthesize waveform by the data. many waveforms could then be generated easily. besides, the wave generator could get high performance on frequence resolution and stability, phase continuum, relative bandwidth etc. the dds technology was widely used in frequence synthesis field

    基於dds技術的波形發生器以高速存儲器作為波形數據查找表、通過高速d / a轉換器對存儲器的波形進行合成，可以靈活產生多種波形，同時具有頻率解析度高、頻率穩定性好、頻率轉換快、相位連續性好以及相對帶寬較寬等特點。
  8. It has wide frequency width and high frequency relution. the maximum output frequency can get to 80m and the highest frequency relution can get to 1 u hz, the waveform memory is 64k. it has the important reference value for three classical structures - pc bus card, stand alone, vxi module

    該任意波形發生器不僅能產生正弦波，方波，三角波等常用的標準信號，還可根據用戶的需要生成任意波形，具有寬頻帶，高的頻率解析度等特點，其波形最高輸出頻率可達80m ，頻率解析度可達1 hz ，波形最大存儲深度為64k ，對于目前三種典型的任意波形發生器的結構? pc總線插卡式，獨立儀器， vxi模塊都有重要的參考價值。
  9. The thesis concludes that spectrum scan speed can reach 680mhz / s at 1khz frequency resolution when it has 8192 points complex data

    本文研究指出，譜分析數據量為8192點復數據時， 1khz頻率解析度要求下的掃描速度可達680mhz s以上。
  10. Conversely, the coefficients in high frequency have higher resolution to time and lower resolution to frequency than the ones in low frequency

    即在低頻部分具有較高的頻率解析度和較低的時間解析度，在高頻部分具有較高的時間解析度和較低的頻率分辨串。
  11. Digital waveform generator which use dds ( direct digital synthesize ) technology has many merits like high frequency resolution, good stability and easy to generate signal

    基於dds技術的數字波形發生器具有頻率解析度高、穩定性好、可靈活產生多種信號的優點。
  12. Uncertainty principle points out that, which means that high time resolution and high frequency resolution can not be obtained both at the same time in spectrum analysis

    測不準原理表明： t ? f 1 / 4 ，即在一次譜分析中，時間解析度和頻率解析度不能同時達到高解析度
  13. It has the advantage of high frequency resolution and low phase noise when compared with traditional integer - n phase locked loop ( npll ) frequency synthesis

    分數分頻（ fnpll ）頻率合成器則是近年來出現的一種新技術，它與傳統的整數分頻頻率合成器相比具有頻率解析度高、相位噪聲低等優點。
  14. Direct digital frequency synthesizer ( dds ) is an apparatus to generate wave on the required frequency. it provides high frequency resolution, rapid frequency transforma - tion and other superiority

    直接數字頻率合成器是現代頻率合成的主要工具，它有頻率解析度高，頻率轉化快等眾多優點。
  15. The agilent technologies 33250a function arbitrary waveform generator uses direct digital - synthesis techniques to create a stable, accurate output on all waveforms, down to 1 hz frequency resolution

    Agilent 33250a函數任意波形發生器使用了直接數字合成技術，可在所有波形上產生頻率解析度達
  16. Through the research of direct digital synthesizer ( dds ) used as a divider in phase lock loop ( pll ), a frequency synthesizer with small frequency resolution ratio and high purity frequency spectrum can be realized

    摘要通過對直接數字合成器在鎖相環路中作為分頻器應用的研究，使頻率合成器可以在實現超細頻率解析度的同時達到高的頻譜純度。
  17. It has a higher frequency distinguished - degree and a lower time - distinguished degree in low frequency part. as high frequency part, it is the other way around. so wavelet is adapt to probing the instantaneous abnormal phenomena of signal exactly and to show its components

    小波分析是一種時頻分析方法，它在低頻部分具有較高的頻率解析度和較低的時間解析度，在高頻部分具有較低的頻率解析度和較高的時間解析度，很適合探測信號中的瞬態反常現象並展示其成分。
  18. A wavelet analysis is introduced to detect and diagnose faults occurred in the ehs system. as well known, wavelet analysis is referred to as a mathematical microscope. it takes advantage to fourier transform in its multi - resolution analysis both in time domain and in frequency domain

    眾所周知，由於小波分析具有良好良好的時?頻特性，即在低頻部分具有較高的頻率解析度和較低的時間解析度，在高頻部分具有較高的時間解析度和較低的頻率解析度，而被譽為「數學顯微鏡」 。
  19. The type of the base function of wavelet analysis is not single, while the ft has only the sine ( or cosine ) function or exponential function. wavelet transformation has the character of multi - resolution analysis. wavelet transformation can analyze the signal in any precision ( resolution ) at any part of time and frequency according to the different translation factors and dilatation factors

    小波變換具有多解析度分析的性質，對應于不同的伸縮因子和位移因子，小波變換能對信號的任何時間（空間）段、任何頻率段進行任何精度（解析度）的分析，在非平穩信號（包括瞬間信號）的分析中具有很大的優越性，分析時，在信號的低頻部分具有較高的頻率解析度和較低的時間解析度，在高頻部分則具有較高的時間解析度和較低的頻率解析度，被譽為「數學顯微鏡」 。
  20. At last we introduce the realization of all the parts, the problem in the circuit design and the measured data. the results show that the designed system has met the requirement. in this dissertation, direct digital synthesis technology has been used in the phase - locked frequency synthesizer, which can make full use of the characteristics of direct digital synthesis technology such as flexible output wave shape and continuous

    本課題將直接數字式合成技術用於鎖相頻率合成器中，該方法將直接數字合成的特點，如輸出波形靈活且相位連續、頻率穩定度高、輸出頻率解析度高、頻率轉換速度快、輸出相位噪聲低、集成度高、功耗低、體積小等與鎖相環路的頻帶寬、工作頻率高、頻譜質量好等優點有機的結合起來，從而在寬帶的條件下實現了比較好的雜散性能和相噪。
分享友人
分享到 Line

分享到臉書