amplitude frequency 中文意思是什麼

amplitude frequency 解釋
幅頻
  • amplitude : n. 1. 廣闊，廣大。2. 豐富，充足。3. （思想的）廣度。4. （天體出沒時偏離正東或正西的）角度距離。5. 【物，電】振幅。
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  1. We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response

    其次藉助ansys有限元分析軟體，對系統進行了模態分析和動力學響應分析，獲得了不同天線結構參數下的衛星?天線系統的固有特性，簡諧響應的幅頻特性，隨機振動響應的功率譜密度，以及沖擊響應的最大幅值和恢復時間等。
  2. The traditional analog frequency - sweeping instrument, which mostly uses the lc circuit as the frequency oscillator, is more expensive, too much bigger and heavy to carry. it can only display the curve of amplitude - frequency, but ca n ' t used to measure the phase - frequency, and ca n ' t used to print the curve of frequency response characteristic either. it brings many discommodity to the user

    傳統的模擬式掃頻儀大多是用lc電路構成掃頻振蕩器，它不僅價格昂貴，體積龐大，而且只能顯示幅頻特性曲線，不能得到相頻特性曲線，更不能列印被測網路的頻響曲線，給使用者帶來諸多不便。
  3. Methods of measurement for radio transmitters ; part 4 : amplitude frequency characteristics and non - linearity distortion in transmitters for radiotelephony and sound broadcasting

    無線電發射機測量方法.第4部分:無線電話和播音發射機
  4. Methods of measurement for radio transmitters. part 4 : amplitude frequency characteristics and non - linearity distortion in transmitters for radiotelephony and sound broadcasting

    無線電發射機的測量方法.第4部分:無線電話和播音發射機的幅頻特性及非線性失真
  5. Development of portable instrument for amplitude - frequency characteristic

    便攜式低頻幅頻特性測試儀的研製
  6. The major job is manufactured a transmitter, which has three upmixer channels. its function is to up convert the signals from c - band to ka - band. the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise, through 512 times multiply to ka band. this sysetem is used in the laboratory as transmitter source of the fuze, for the multidimensional objects in practise, which lead to the complexity of the reflect signal, so the amplitude, frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals. therefore, this system requires for both the coherence of the single channel ’ s amplitude, phase and multi channels

    本文的主要工作是應用戶要求製作一具有三發射通道的上變頻系統，可以將c波段的微波信號上變頻到ka波段的毫米波信號。系統的本振輸入基頻由一相位噪聲非常好的低頻率晶振提供，經過512次的倍頻放大至ka波段。本系統作為實驗室中引信的發射源，由於目標反射信號具有時變的多維性，反射信號變得極為復雜，在信號處理時，不僅信號幅值、頻率有決定意義而且相位關系也很有決定意義。
  7. Lastly, the paper designs an example and tests its amplitude frequency response. at last, this paper points out that this method can efficiently control the performance of narrow band fir digital filters. both test and application indicate that practical performance and ideal performance are almost identical

    在此基礎上給出窄帶fir濾波器的詳細結構，分析了窄帶fir濾波器的多級實現原理，並且對窄帶fir濾波器的的基本特性進行了分析，這些特性包括：頻率特性、抗混疊特性、去鏡象特性。
  8. The auto - spectrum is attached to linear phase, the amplitude - frequency drawing is got according to the arithmetic of bi - spectrum, then the equivalent is educed, the conversion relation is attained

    該方法通過對自譜添加線性相位，根據雙譜的數值估計演算法計算獲得雙譜在三維空間的幅頻圖，通過推導雙譜與自譜估計演算法之間的等價關系以及所得的幅頻圖來實現兩者之間的相互轉換。
  9. There are functions such as drawing the chart of amplitude - frequency and phase - frequency, calculating and displaying the highest peak value, the total sum of amplitude and the effective line - breadth of the signal in the program. so an effective technical means is supplied for the analysis of ultrasonic signal

    軟體系統具有幅頻圖及相頻圖的繪制、最高峰值、諧波系數及有效譜寬度的計算及顯示等功能，從而為超聲信號的頻譜分析提供了極其有效的技術手段。
  10. The main content of chapter 1 are the analysis of the repetition of the historical phenomenon of money supply fluctuation since the foundation of new china and the discussion about the nature and features of the money supply fluctuation in our country, as well as the fluctuation period, amplitude, frequency and component stages on each cycle

    緒論部分包括文獻綜述、研究方法和邏輯體系。第一章從我國建國以來貨幣供應波動的歷史資料入手，考察了我國貨幣供應波動的性質、特點和各波動周期的長度、波動幅度、頻率及組成階段等。
  11. The analysis on amplitude frequency characteristics of picture intermadiate frequency amplify circuit of colour television

    彩電圖像中放電路幅頻特性分析
  12. This paper analyzes the amplitude frequency characteristics of picture intermadite frequency amplify circuit of colour television, analyzes the influence of picture quality and sound quality for intermadiate frequency amplify circuit amplitude frequency characteristics, puts forward the method of reduce influence and improve picture and sound quality

    摘要詳細分析了彩電圖像中放電路幅頻特性曲線，分析中放幅頻特性對圖像質量、伴音質量的影響，提出了減少影響提高圖像、伴音質量的方法。
  13. The device is also widely used to measure the amplitude frequency characteristic of instrument in the tv - broadcastiong field, such as filter, amplifer, ect

    該儀器主要針對高頻調諧器的測量，也可用於廣播電視領域中濾波器件、放大電路等的生產測試。
  14. Because the self - oscillation, the dynamic accuracy of the servo system is not only correlative with servo system parameters but also influenced by the input signal amplitude, frequency and the system self - oscillation state

    由於自振蕩狀態的存在，伺服系統的動態精度不僅與伺服系統的參數有關，還受到輸入信號幅值、頻率以及自振蕩頻率的影響。
  15. For the amplitude - frequency response at the self - oscillation frequency is one, a method to calculate the dynamic accuracy and the index of the servo system is provided, by comparing them, the scheme to design the verifying unit is presented

    利用伺服系統在自振蕩頻率點的幅頻特性為1這一特點，將輸入信號頻率、幅值、系統的自振蕩狀態和系統的參數聯系起來，構建了伺服系統動態精度的計算公式和指標估算經驗公式，並根據兩者的關系提出動態精度校正方案。
  16. Abstract : according to the deep analysis of the typical punching process, the loading charts and the amplitude - frequency curves of straight side cnc turret press frame are obtained. in the end the dynamic response of a typical process is calculated using modal superposition method by fem software marc and the static and dynamic stress of some nodes is compared as well

    文摘:根據板料沖裁時的工作負荷圖確定了數控回轉頭壓力機的動載荷譜，並通過傅立葉展開，獲得了壓力機的幅頻譜，最後通過marc軟體採用模態疊加法計算了典型沖裁時機身的動態響應，分析了其動態特性，並對特徵點的動靜態應力進行了比較。
  17. The modulation used by a dial - up modem is very different from that used by a cable modem, because a twisted - pair phone line and a coaxial cable differ in the amplitude, frequency and phase of the signals they can carry

    撥接數據機所使用的調制，與纜線數據機大相逕庭，因為電話的雙絞線與同軸電纜所攜帶的訊號，各具有不同的振幅、頻率與相位。
  18. Second, the influence of vibration parameter, such as amplitude, frequency, exciting force, damping, on the velocity of material transportation is discussed. it can be referenced in engineering design

    文中討論了振幅、頻率、激振力、阻尼等振動參數對物料輸送速度的影響，在輸送機設計過程中選取參數時可供參考。
  19. The output voltage parameters such as amplitude, frequency and duty ratio can be variable in a wide range with programmable digital adjustment

    脈沖電壓的幅值、脈沖頻率和占空比等參數在較大范圍內實現可編程數字調節。
  20. Built - in pulse waveform generation with programmable amplitude, frequency, duty cycle and slew rate

    固定脈沖信號波形世代以可編程式的高度頻率使用率和沼澤率
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