frequency response spectrum 中文意思是什麼

frequency response spectrum 解釋
頻率及應譜
  • 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。
  • response : n. 1. 回答，答復。2. 【宗教】應唱聖歌。3. （因刺激等引起的）感應，反應，反響；應驗；【物理學】響應；【無線電】靈敏度，感擾性；特性曲線。
  • spectrum : n. （pl. -tra ）1. 【物理學】譜，光譜；波譜；能譜，質譜。2. 【無線電】射頻頻譜；無線電（信號）頻譜。3. 【心理學】（眼睛的）余像；殘像。4. 〈轉義〉范圍，幅度；（連續的）系列。
  1. 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。
  2. 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。
  3. The signal process function of the software include these function : digital filter, windowing, auto - correlation function and cross - correlation function, mean and variance, probability density function and probability distribution function statistic ; auto - power spectrum, cross - power spectrum, frequency response function, coherence function, cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )

    軟體的處理功能包括：數字濾波、時域加窗、自相關與互相關處理、均值和方差計算、概率密度和概率分佈函數計算；在快速傅立葉變換（ fft ）基礎上計算自功率譜、互功率譜、頻率響應函數、相干函數、倒頻譜分析；基於短時傅立葉變換（ stft ）的聯合時頻分析等。
  4. To solve it, the differential equation set is transformed by fourier transform and the dynamic differential equation in the form of matrix is educed. the calculation formulas of frequency response function of vehicle vibrating system, acceleration power spectrum density function are put forward

    用分析力學法建立整車動力學模型，推導出以矩陣形式表示的運動微分方程，並通過傅氏變換給出汽車動力學系統的頻率響應函數、加速度功率譜密度函數的計算公式。
  5. Results show that all the parts of the artillery produce vibration acceleration in the traveling course. the power spectrum is mainly in the low frequency segment. worse road surface and higher speed will cause higher power spectrum value of the acceleration response

    結果表明火炮牽引行駛過程中各部件均產生振動加速度，其功率譜主要分佈在在低頻段，路況差、速度高則加速度響應的功率譜值高。
  6. Information of system auto and cross spectrum, auto and cross correlation. coherent function, signal to noise ratio, frequency response and impulse response was established to help the study and arrangement of the module components

    由力規及加速規兩量測之時域訊號，經快速富利葉轉換，計算其自頻譜及互頻譜，再經反富氏轉換回時域之自相關及互相關函數、相通函數、訊噪比、頻率響應函數、脈沖響應函數。
  7. Frequency sweep flight technique is used to collect the flight data of a model helicopter near its hover and low speed working condition, window frequency spectrum is combined to obtain the frequency response of both lateral and longitudinal channels, then weighted fitting method is utilized to obtain the transfer functions of the two channel

    摘要利用掃頻試飛技術獲取了某無人直升機在懸停工作點附近的舵機輸入和直升機動態輸出數據，利用組合窗頻譜分析的方法獲取了直升機橫滾通道與俯仰通道動態的頻率響應特性，利用加權擬合的方法獲取了各自的傳遞函數。
  8. An experimental system was set up to generate the impact force, measure the response signal, and analyse the frequency spectrum for physical property detection of biological product

    摘要建立了一個能產生激勵力、獲取生物物料響應信號和分析信號頻域特性的試驗系統。
  9. Analyzing the response under the wind power, it includes response frequency of the extended mode, shaking model of the extended modeu response spectrum of the extended model

    、分析橋機在風載下的響應，這包括擴展模態的：響應頻率、振型、響應譜。
  10. In this essay, the answer to natural frequency of vibration and periodic time will given in the response spectrum method

    而本文是通過反應譜法，求解泵站的自振頻率、周期。
  11. As a classical and practical method in ambient vibration experimental modal analysis, auto - cross spectrum density method replace the frequency response function with power spectrum and achieve its mode shape from transmissibility between the response signals and reference signal

    自互譜法作為環境激勵實驗模態分析的一種實用的經典方法，用響應點和參考點間的功率譜曲線來代替頻響函數曲線，並由響應點和參考點之間響應的傳遞率得出振型。
  12. Meanwhile through analyzing the characteristic of the frequency spectrum of real seismic load, the influence of sismic load ' s feature period on dynamic response result of the grotto rock 15 revealed

    並通過對地震荷載的頻譜特性分析，揭示了地震荷載的特徵周期對錨索加固石窟圍巖的動力響應結果的影響。
  13. We improve the sensor head structure on the basis of analyzing the factors influencing the sensor head sensitivity. using thin fiber with 80 m and special framework, we get magnetic sensor head with small volume, high sensitivity and wide frequency response spectrum

    在分析影響傳感器的傳感頭靈敏度的因素的基礎上，本文對傳感器傳感頭結構進行了改進，整個傳感頭都採用80 m的細徑光纖，通過特殊的骨架結構，實現了體積小、靈敏度高、頻率響應范圍寬的磁場傳感器傳感頭。
  14. The dynamical characteristics of ground soil and structure of frequency spectrum of ground micro - tremor in fuzhou and quanzhou of fujian province are studied in this thesis. the ground microtremor signals were observed, and the signals were analyzed by fast fourier transform method ( fft ). the characteristics of structure of frequency - spectrum and response of ground soil to frequency of ground micro - tremor are revealed, and the function with frequency - dependence and frequency - selection of micro - tremor for different foundation soil strata is also researched

    本文以福建省福州市區和泉州市區場地土的動力特性和地脈動頻譜結構為研究對象，對福州市區和泉州市區等地進行了場地地脈動的測試，利用快速傅立葉變換（ fft ）方法對觀測到的地脈動信號進行頻譜分析，研究了地脈動頻譜結構特徵及場地土對地脈動的頻率響應的特性。
  15. The pseudo - dynamic test of 1 / 3 - scale model six - story building assembled with hollow shear wall with seams. the internal forces, the deformation and the failure mechansm of the building under earthquake are studied. the rules of frequency, damping and response spectrum are studied. the characters of earthquake response such as structure displacement, interstory drift, action of earthquake, the amplificatory coefficient of acceleration and the rule of strain are discussed. at last, this paper presented the design method of this structure based on the aseismic style and put forward the construction

    進行了帶縫空心剪力墻結構六層樓房的1 3模型的擬動力試驗，研究了結構在水平地震作用下的受力特點、變形特徵、破壞形態等力學性能；得到了結構在不同受力階段的頻率、阻尼、反應譜等動力特性變化規律；討論了結構各樓層的水平位移、層間位移、地震力、加速度放大系數及構件應力分佈規律等結構地震反應特徵；指出了結構的抗震類型、薄弱層及薄弱部位；提出了多層帶縫空心剪力墻結構的第一階段設計方法和相應構造措施。
  16. In addition to, acquiring the frequency - spectrum response of imported earthquake - wave can be better to analyze the earthquake response of the structure

    此外求出輸入地震波的頻譜特性，可更好的分析結構的地震反應。
  17. This program can do the static characteristics test and draw frequency response characteristics curve of the electro - hydraulic servo valve. the frequency response characteristics curve is done by the spectrum analyzer td4010 in the traditional way

    同時，此套測試系統軟體也能實現電液伺服閥動態性能的測試，進行頻率響應曲線繪制，以替代頻譜分析儀td4010的功能。
  18. By deducing the theory of this method, it comes to a conclusion that auto - cross spectrum density method is much the same as peak picking method based on frequency response function. and it also talks about the virtues and defects of the method

    本文通過對相關理論的推導，說明了自互譜法與基於頻響函數的峰值攝取法是近似相通的，同時對該方法的優缺點作了敘述。
分享友人
分享到 Line

分享到臉書