extension frequency 中文意思是什麼

extension frequency 解釋
輔助頻率
  • extension : n 1 伸長,伸展,延長,延伸,擴展,擴大;廣度,范圍。2 延期;〈美國〉(房屋的)增建部分,(鐵路等...
  • 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. Also call to pour the type to open the bore box a box for, department on the box the front - panel openning having pouring the bore. because of openning to there is bore, voice in the box to can then radiate the outside. pour the type the box the low frequency extension for ratio closeness type box to be good friends with the amount, but the bass usually and not and so fructify the tightly packed. comparison " infinite baffle " infinite baffle

    也稱倒相式開孔箱,系在音箱面板上開有倒相孔槽的一類音箱。由於開有孔,箱內的聲音便可以輻射到外面來。倒相式音箱比密閉式音箱的低頻延伸要好些,但低音往往不那麼結實緊湊。
  2. The empirical analysis, using probit model, showed that the extension efficiency of the technique was obviously affected by following factors : income and cost, yield increase, farmers " age and education, non - agricultural income, farmer ' s social status, distance from town, frequency of farmers " contact with media and agricultural technicians

    運用probit模型對超高茬麥田套稻技術推廣的影響因素進行分析,結果顯示畝增收節本、畝增產量、戶主年齡、戶主受教育時間、非農收入、是否幹部、離鎮距離、媒介頻率、與農技人員接觸次數對該技術的推廣有顯著影響。
  3. ( 2 ) the lateral deformation is effectively limited by reinforced earth layers and the settlement becomes small. @ the lateral deformation is enlarged on soft foundations, and the settlement becomes large. @ the reinforced earth layers on soft foundations behaves extension. the response behaviors of high sand - gravel embankment are indicated as the following : ? he amplification factor of earthquake acceleration varies with reinforced earth structure. ( 2 ) the basic frequency of the original embankments in different reinforcement conditions is about 0. 76hz. ? the amplitude of dynamic deformation appears small and the dynamic stability is safe

    研究表明:加筋土體能有效地限制路堤的側向位移發展,減小沉降變形量;軟基路堤的側向位移較大,將顯著地增大路堤的沉降變形;軟基上加筋土墊層中產生的拉應力最大;加筋砂礫土路堤在振動荷載作用下動變形反應較小,具有良好地動力穩定性。
  4. Use on 4 wells shows that, the new variable - frequency operates well, bringing about good power saving effect and extension of pump overhaul period

    4口井的現場應用結果表明,新型電泵控制系統運行狀態良好,節能效果明顯,延長了檢泵周期,經濟效益較好。
  5. We discussed common methods of digital deconvolution and analyzed effects of noise on it. then, we simulated digital deconvolution filters and optimization criteria of filtration parameters. after that, we gave the application of them in the frequency band extension technique

    首先,介紹了數字反卷積的常用方法及噪聲對數字反卷積的影響;然後,研究了常用的數字反卷積濾波器及濾波參數的優化準則;最後,給出了數字反卷積在頻帶展寬技術中的應用。
  6. First, the capacitor inserted allows a low frequency " extension " due to the resonance between the transformers inductance and the capacitance value

    第一,耦合電容和變壓器初級電感之間的諧振可以容許更好的低頻延展。
  7. Recent progress in ultrafast optics has allowed the generation of ulfcraintense light pulses comprising merely a few field oscillation cycles. the arising intensity gradient allows electrons to survive in their bound atomic state up to external field strengths many times higher than the binding coulomb field and gives rise to ion - ization rates comparable to the light frequency resulting in a significant extension of the frontiers of nonlinear optics and ( nonrelativistic ) high field physics

    隨著超快光學技術的發展,僅含幾個振蕩周期的超強脈沖已經能產生,且其強度梯度可使電子存在比庫侖束縛場高許多倍的外場產生的原子束縛態上,並產生了同光頻相差不大的電離率,從而促進了非線性光學前沿及非相對論的強場物理的延伸。
  8. The influence of frequency extension on software antenna algorithm selection

    頻率擴展對軟體天線演算法選擇的影響
  9. In this paper, the extension theory of bandwidth in digital system and three key points of frequency band extension technology are studied experimentally by simulation

    本文主要研究了數字系統頻帶展寬原理及頻帶展寬中的三個關鍵技術。
  10. We summarized three key points of frequency band extension technology and systematic studied these points by simulation. an experiment executing frequency band extension for a concrete digital measurement system was performed

    最後,我們對數字系統頻帶展寬技術中三項關鍵技術的綜合模擬,並針對一個具體數字系統實施頻帶展寬進行了實驗。
  11. The frequency band extension with time base jitter is also studied by simulation. the results show that the compensation of time jitter can reduce the error of signal and then increase the accuracy of frequency band extension

    對時基抖動的頻帶展寬技術的模擬結果表明,通過擴展的概率密度法對時基抖動的補償,可以減小信號的誤差,因而提高頻帶展寬的精度。
  12. The time base drift deduced by the change of temperature is discussed particularly and the compensation method of it is analyzed. finally, we also studied frequency band extension under time base distortion condition by simulation. the results show that the compensation of time base distortion can reduce the error of signal and then increase the accuracy of frequency band extension

    首先,介紹時基失真的相關概念及其對測量信號的影響;其次,對時基失真特性測量的不同方法進行了理論分析和比較,並對分析信號法進行了模擬研究;再次,對時基失真的補償方法進行分析和模擬研究;並專門對溫度變化引起的時基漂移及其補償方法進行了簡要分析;最後,對時基失真條件下的頻帶展寬技術的模擬表明時基失真的補償可以減小信號的誤差,因而提高頻帶展寬的精度。
  13. The size and length of the reflex holes and pipes all affect the extension of low frequency, therefore according to the character of the speaker, we should design proper holes and pipes in order to get the best speed and the extension of low frequency

    其反射孔的大小與導管的長度皆會影響低頻的延伸,因此必須根據單體的特性,設計出適合的孔徑與導管的長度,以取得最佳的速度感與良好的低頻延伸。
  14. This thesis deals with design and application of a multiprocessor made of four dsps in monitoring receiver. the broadband monitoring receiver requires a kind of chip with high performance because of complicated intermediate frequency signal processing. the author selects a kind of digital signal processor called adsp21160. during the process of design, the author uses cpld, fpga and some special cpus to finish signal, processing in the monitoring receiver. cluster multiprocessor based on vxibus made of four adsp21160 is put forward. the task distribution of four dsps is solved too. furthermore, data transition methods between chips at a high speed through link ports and chip extension mode using external port are recommended. the author debugs, emulates the program in one adsp - 21160 ez - kit lite and simulates the multiprocessor program in visualdsp + +

    本文主要探討了監測接收機中多dsp處理模塊的設計與應用,寬帶監測接收機的中頻處理數據量大、實時性高,這樣,對dsp晶元提出了很高的要求,作者通過比較選擇了最適用於監測接收機的數字信號處理器adsp21160 ,並結合使用了cpld 、 fpga以及一些專用的cpu來完成監測接收機中的數據處理。作者提出了由四片adsp21160組成的簇式多dsp處理模塊的結構並配以了vxi總線,論述了簇式結構的特點,解決了多dsp處理模塊中四片adsp21160的任務分配問題。
  15. Rfid ( radio frequency identification ) system is the extension and development of ic card. it has many advantages, such as contactless non - pollution, efficient recognizing ability and high security of data

    Rfid系統是ic卡技術的延伸和發展,它具有非接觸無污染、識別率高、保密性強等優點。
  16. The results show that the frequency band extension technology using digital deconvolution has feasibility

    研究結果說明數字反卷積展寬數字系統頻帶技術是可行的。
  17. The purpose of this paper is to present a new strong limit theorem and its extension on the frequency of m - tuple of states for arbitrary countable non - homogeneous markov chains

    摘要給出關于可列非齊次馬爾可夫鏈m元狀態序組出現頻率的一個新形式的強極限定理及其推廣,所得結論對任意可列非齊次馬爾可夫鏈普遍成立。
  18. And some effective techniques are discussed to lower the clock period and cpi ( cycles per instruction ) of the pipeline. to eliminate the clock frequency limitation by some complex instructions " long executing time and achieve single - cycle throughput, a scalable super - pipelining extension technique together with a high performance / cost pipeline shift mechanism is presented in this paper

    為避免流水時鐘頻率受制於某些復雜運算指令較長的運算時間,又要達到單周期完成一條運算指令的吞吐量指標,本文提出對ex級進行可伸縮超流水擴展的思想,提出並實現了一種高性加比的切換控制方案。
  19. Various monetary instruments should be used to regulate liquidity and to strictly control the size of loans and frequency of credit extension, so as to better regulate domestic demand and balance international payments, said the conference

    會議稱,應該應用各種貨幣手段來控制流動性,嚴格控制貸款的規模,和授信的頻率,以此來更好的調節國內需求,平衡國際收支。
  20. Wavelet decomposition : db4 wavelet decomposition and energy norm l1 was employed to extract feature of zr - 4 alloy images. with the selected wavelet db4, features at different frequency channels of life span were gotten. then an energy change at the direction of fracture extension was studied to find the relationship between the feature and life - span. fractal algorithm : feature of image at different channel was extract after wavelet transform

    基於小波分解的斷口圖像的分析,首先提取鋯- 4合金低周疲勞斷口紋理圖像的特徵,實驗確定了db4小波分解和l1能量的計算方法,求得不同壽命的斷口圖像在各個頻率通道的特徵值,斷口圖像的變化反映在特徵值的變化,這為圖像的壽命分析提供了一種有效的手段。
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