frequency content 中文意思是什麼

frequency content 解釋
頻率內容
  • 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。
  • content : n 1 容積，容量，含量，【數學】容度；收容量。2 【哲學】內容 （opp form）；要旨，真意。3 〈pl 〉內...
  1. Analysis of causes for delay phenomenon in determining carbon and sulfur content in ferroalloy with high frequency carbon sulfur determinator

    高頻紅外碳硫儀測定鐵合金時拖尾現象的原因分析
  2. Carrying the information of content, it has the function of content verification. this article compares various method of formant parameters calculation, and completes the calculation of the 5 former formant frequencies and bands. as pitch frequency

    在分別使用支持向量回歸和多項式回歸進行句子轉換的對比實驗中，支持向量回歸的頻譜更接近目標語音，但其執行速度慢，運算時間較長。
  3. The structure of the testing platform is described, and the experiment content and principles are given in detail. the transmission error curves and space frequency curves are emulated. the circuits of rotor part and software are finished

    本文介紹了實驗臺的整體結構，實驗內容的設置和各實驗的工作原理，模擬了傳動誤差曲線及其空域頻譜圖，詳細闡述了轉子測量的電路設計、下位機程序設計和上位機的軟體設計。
  4. Virtual studio system, which is a hotspot research area in video frequency production field nowadays, its mostly research content is : shoot the histrionic " s perform in blue box, then by using chroma key, synthesize it with virtual scene produced by computer

    虛擬演播室系統，是當前視頻製作領域的一個研究發展的熱點，其主要研究內容是：在藍箱中拍攝演員的表演，然後通過色鍵將之與計算機製作的虛擬場景合成。
  5. As a rule, the immunosensors is to coat the surface of crystal with antibodies or antigens, immerge to muster solution, binding to the immobilized antigens or antibodies and take place immuno - reaction, can cause a frequency change of the quartz crystal, and the frequency changes are proportional to content of antigens or antibodies in muster solution

    通常將抗體（或抗原）固定於晶體表面，浸入樣液時，與抗原（或抗體）產生免疫反應，使晶體表面質量負載增加，頻率降低，其頻移值與樣液中抗原（或抗體）含量成正比。
  6. In the end, the main content of this dissertation is addressed. in chapter 2, based on the analysis of present vibrator ' s principle and structure, two kinds of transfer functions and frequency response curves of the vibrator, driven by voltage feedback power amplifier and current feedback amplifier, are given separately. and turnover frequencies between different frequency rangs are also given

    第二章分析了標準振動臺的工作原理和結構，在此基礎上，建立了標準振動臺的機械和電氣方程，給出了恆壓源和恆流源功放激勵下的振動臺傳遞函數及幅頻、相頻特性曲線，列出了不同頻段間的轉折頻率。
  7. But at present, prior work on video content analysis is difficult of approach good result using video frequency data alone and is inapplicability to scene segmentation and video content classified

    但是，目前僅僅根據視頻數據來提取視頻內容難度很大。單獨依靠現有的視頻處理技術不能準確地分割視頻場景和對視頻內容進行分類。
  8. The analysis results show that : the frequency characteristic curve assumes the downtrend, so the electrical energy measurement of the induction meter will produce biggish error when the content of the harmonic is big, no matter taking the whole energy as measurement standard or basic wave energy

    研究分析結果表明：感應式電能表的誤差頻率特性曲線呈迅速下降趨勢，因此在電能計量中，不管是以全能量為計量標準還是以基波能量為計量標準，當諧波含量較大時對感應式電能表的電能計量將會產生較大的影響。
  9. Either the boron nitride ( bn ) thin films with different cubic phase content were deposited on n - type si ( 111 ) and fused silica substrates by radio frequency ( rf ) sputtering using two - stage deposition process. the films were characterized by fourier transform infrared ( ftir ) spectroscopy. the transmittance te ( ) and reflectance re ( ) were obtained as a function of incident photo wavelengths and the thickness of films was measured by alpha - step. the absorption coefficient was calculated from te ( ) and re ( ). the optical band gap ( eg ) of the films was determined by effective medium form of formula containing eg

    本文還研究了立方相含量與光學帶隙的關系，在n型si （ 111 ）片和熔融石英片上沉積出不同體積分數的立方氮化硼薄膜，薄膜的成分由傅立葉紅外吸收譜標識；用紫外-可見分光光度計測量了沉積在石英片上的bn薄膜的透射光譜te （ ）和反射光譜re （ ） ，薄膜的厚度用臺階儀測得。
  10. The data access pattern is divided into exclusive and sharing, according to the pattern of access and update frequency of the data, three ways are adopted, i. e. the period, update counter and data state to dynamically adjust the frequency and content of data broadcast

    將數據的訪問形式分為共用和獨占兩種，根據數據訪問形式以及數據的更新頻率，採用定時、計數以及數據狀態等三種方法，動態地調整服務器廣播更新數據的頻率和內容。
  11. Nickel - determination of carbon content - infra - red absorption method after high frequency induction furnace combustion

    高頻感應爐燃燒紅外吸收法測定碳量
  12. Nickel - determination of sulphur content - infra - red absorption method after high frequency induction furnace combustion

    高頻感應爐燃燒紅外吸收法測定硫量
  13. Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter

    西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。
  14. The main content and creative work in this dissertation include : 1. simulate the echoes of the radar, namely produce the lfm signals with band width equaling 5mhz, time width in 9 s ~ 42 s and analyze them in frequency domain pulse compression. at the same time suppress the clutter and indicate targets

    本文完成的主要工作和創新之處有: 1 .通過模擬模擬回波信號，產生了帶寬為5mhz ，時寬在9 s ~ 42 s范圍內帶目標和噪聲雜波的lfm信號，並對其進行了頻域脈沖壓縮的分析，抑制雜波並顯示出目標。
  15. The main content and creative work in this dissertation include : ( 1 ) the characteristics of the lfm signals with band width equaling 5mhz, time width in 9 s ~ 42 s, nlfm signals with band width equaling 5mhz, time width in 9 s ~ 21 s are analyzed in frequency domain pulse compression. the corresponding side - lobes suppression filters are designed and optimized

    本文完成的主要工作和創新之處有: （ 1 ）分別完成了對帶寬為5mhz ，時寬在9 s ~ 42 s范圍內lfm信號，帶寬為5mhz ，時寬在9 s ~ 21 s范圍內nflm信號的頻域脈沖壓縮的分析和旁瓣抑制濾波器的設計及優化。
  16. We have imported some state - of - the - art equipments such as : high - frequency vibroseis and multi - level geophones for field data acquisition. by doing so, we have acquired high - quality seismic data with high sample rate, high signal to noise ratio and high frequency content

    在採集上，引進國外高頻可控震源，多級檢波器等主要設備，得到高采樣率、高信噪比、高解析度的高品質資料。
  17. It can be changed according to program or music beats, signal strength and frequency content

    可以根據已編程序或音樂節拍，信號強弱及頻率成份跟著樂曲來變化。
  18. ( 2 ) damage detection based on wavelet transformation using the principle of time - frequency analysis based on orthonormal discrete wavelet transformation, it can detect damage by analyzing how the frequency content of observation signal changes with time

    該方法利用基於離散正交小波變換的信號時頻分析原理，通過分析觀測信號的頻譜隨著時間的變化情況來檢測破損。
  19. Along with the digital video frequency rapid growth, fast and the effective retrieval technology changes more and more to the video frequency content importantly

    隨著數字視頻的飛速增長，對視頻內容快速而有效的檢索技術變得越來越重要。
  20. Wavelet theory began from 1980 ' s and developed greatly in 1990 ' s. wavelet theory provides a new powerful tool for studies relying on the time - frequency signal analysis. the main advantage of wavelet transform remains in its ability to locally describe signal frequency content

    它是傳統傅立葉變換的新發展，它較付氏分析的主要優點在於可同時在時域和頻域局部化，被看作是一種新的時頻分析工具。
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