頻敏的 的英文怎麼說
中文拼音 [bīnmǐnde]
頻敏的
英文
frequency-responsive-
Cycle frequency - based blind beamforming shows the performance degradation due to cfe ( cyclic frequency error ). an improved algorithm is presented in literature 6, which adopting forgetting factor in estimation cyclic correlation matrix would largely depress the sensitivity of cab to cyclic frequency error. by using this method, the improved algorithms of the c - cab and ecab algorithms are presented in this dissertation
針對基於循環頻率的盲波束形成演算法對循環頻率誤差cfe ( cyclicfrequencyerror )很敏感而導致演算法性能下降的情況,參照文獻[ 6 ]提出的遺忘因子cab演算法,提出了c - cab演算法以及基於特徵空間的盲波束形成演算法( ecab )的改進演算法。Reform and application of frequency - sensible resistor
頻敏電阻器的改制及應用The planet vibrates at a very low frequency ? too low for our ears to pick up, but enough that geologists get an annoying background noise on their sensitive instruments
行星振動的頻率很低,我們耳朵很難分辨出,但在地理學家靈敏的儀器上卻會收到一個非常令人討厭的背景噪音。This study showed that the mt and sharpness of frequency tuning curves increased as the sound direction changed from contralateral to ipsilateral azimuthal angles. it suggests that sound direction effect on frequency tuning may be through the complex interplay between the excitatory and inhibitory inputs. the application of gaba ( a ) antagonist, bicuculline, lowered all mts but the application did not abolish direction - dependent variation in mt
聽皮層的抑制性影響使大多數神經元在蝙蝠最敏感的聲源方位c - 40的頻率分辨能力明顯提高,同時使c - 40和i - 40的最低閾值的差別進一步增大,提高了信噪比,提高下丘聽神經元對聲源方位和最佳頻率的分辨能力。Relationship between the gyro ’ s bandwidth and sensitivity and the resonant frequency differential ratio is derived through frequency analysis. the bandwidth of the gyro increases as the resonant frequency differential ratio increases ; but the sensitivity decreases as the resonant frequency differential ratio increases
增大驅動軸和敏感軸之間諧振頻率的頻差,可以增加微陀螺的帶寬,但是降低了微陀螺的靈敏度,這為設計石英音叉結構參數時,確定驅動軸和敏感軸諧振頻率提供了指導依據。Secondly, the paper researches blind estimation of signals parameters, including the carrier frequency, signal to noise ratio and symbol rate of digital modulations. thirdly, with the combination of parameters from early studies on the decision theory, a set of robust feature parameters are extracted from signal power spectrum and the power spectrum of the second and fourth power of signal. based on these parameters, the proposed scheme is able to recognize 12 types of common used modulations, namely ask 、 2fsk 、 msk 、 4fsk 、 psk 、 qpsk 、 / 4qpsk 、 8psk 、 am 、 dsb 、 ssb 、 fm
接著,對信號功率譜、平方譜及四次方譜進行研究,針對通信中常用的調制方式,結合前人提出的基於決策理論中的特徵參數,設計了一組對信噪比和信號調制參數不敏感的分類特徵參數,利用上述參數完成了一種基於信號頻域的識別方法,可以對ask 、 2fsk 、 msk 、 4fsk 、 psk 、 qpsk 、 / 4qpsk 、 8psk 、 am 、 dsb 、 ssb和fm這12種常用調制方式進行識別。A concentration of receptor cells in their inner ear makes bats extremely sensitive to frequency changes
一些蝙蝠內耳里的受體細胞的集中使它們對頻率的變化極其敏感。Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled
( 2 )利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究,通過分析正弦荷載作用下的試驗資料,驗證了粉土的孔隙水壓力增長模式的合理性;從微分方程推導了基於土體振動臺模型試驗的相似律,並從模型實體、孔壓時程曲線和相似律等方面做出了分析,得出了如下結論:在小型振動臺試驗中,模型箱中的粉土都發生了液化,液化的時刻和輸入加速度幅值有關,而對頻率的變化不太敏感;粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化;孔壓的增長曲線形狀與施加的荷載有關:當施加荷載為由小到大的形式時,曲線形狀為上凹的曲線;當施加荷載為等幅的正弦荷載或荷載幅值由大到小時,曲線形狀為上凸的曲線,且逐漸趨于穩定。The dynamic equation for analyzing torsional vibration of the vehicle drivetrain is established based on analyzing the jointing process of frictional clutches, and the inherent frequency, the response of torsional vibration and the sensitivity of rigidity parameters to inherent frequency are studied
摘要文章在分析車輛最常用的膜片彈簧摩擦離合器接合過程的基礎上,建立汽車傳動系的扭轉振動的力學分析方程;結合實際車型,分析了車輛的固有頻率、扭振響應、剛度參數對固有頻率的靈敏度。Bridge can be detected by the transformation of structure mode parameters with the modern technology of signal test. the vibration frequency is obtained easily in the measure, but it is n ' t sensitive to the transformation of mass and rigidity. so it is difficult to identify by test system when the damage of structure reach to the limit damage degree
在實際的工程測量中最容易獲取的結構模態參數就是振動頻率,但是振動頻率對質量、剛度的變化具有弱靈敏性,這使得即使結構的破損程度達到了極限破損程度,振動頻率的變化也很難被測試系統識別。So the project, which is equipping a proper anti - vibration component in driver ' s chairs of long - distance passenger vehicles to control the vibration characters of sensitively human frequency scopes and to improve driver ' s ride comfort, has a great practicability and feasibility
因此考慮對于長途客車駕駛員座椅這一總成,通過加入適當的隔振元件從而控制人類敏感頻段的振動特性使其舒適性得以改善具有較強的實際意義和可行性。Agile processes rely on frequent refactoring and unit tests to improve designs
敏捷流程依賴頻繁的重構和單位測試來改進設計。This article takes hanging off and wide fluctuation of transmition velocity of adsl as example, then analysis centers on the discerte multiple tone and the principle of channel load assignation. from analysis above article points out the root of adsl being sensible of noise signal. at last, reserches effects that window function and barrier effect on frequency and adopts fft to work out the noise power of adsl
本文以電信現在推出的adsl傳輸中鏈路經常掉線和傳輸速率經常大范圍波動為例,重點分析了adsl所使用的dmt調制方式和注水演算法分配通道載荷方式原理,由此指出adsl對噪聲信號敏感的根源,在得到問題的根源之後,分析了窗函數和柵欄效應對頻譜的影響,採用fft方法計算adsl線路的噪聲功率譜,為adsl線路測試提供了可靠的理論依據。The results of calculation prove : the new structured coaxial probe is superior to the traditional coaxial probe in both sensitivity and penetrating depth when used to measure the dielectric properties of chemical reactants or layered biological tissues, and the relationship between the measurement sensitivity of this new structured probe and the frequency of electromagnetic wave are obtained, which provides the optimal frequency for the actual application
計算結果表明:在化學反應溶液及生物分層組織介電特性參數的測量中,這種新型的同軸探頭在測量靈敏度及透入深度兩方面都優于傳統的平口同軸探頭。通過計算模擬還得出了這種新型同軸線探頭的測量靈敏度與電磁波頻率的關系,為進一步研究其最佳測試頻率提供了有價值的參考依據。This thesis discussed approaches of fault diagnosis based on the sensitivity analysis which is a new test method of analog circuits. main objects are described as follows : first, there exists a problem which the existence of solutions can not intuitively be predicted by choosing test frequency in the first - order sensitivity method on fault diagnosis
在此理論基礎上,本文從以下兩個方面進行嘗試:首先,一階靈敏度故障診斷方法存在這樣一個問題,即測試頻率的選擇不能直觀地對故障診斷方程解的存在性進行預分析。It is included that the factors which affect the resonance frequency and how to reduce the affection, so that the magnetostrictive weak magnetic fiber optic sensor has a high sensitivity and good stability
給出了影響共振頻率的因素及解決頻率漂移的辦法,從而得到既有很高靈敏度又有很好穩定性的光纖直流弱磁場傳感器。Then, by seismic numericac simulating of the buried hill surface and its internal phase and analysis of characteristic of wave - field, the wave - field charalteristic of the buried hill ' s surface is different to the characteristic of the buried hills " internal phase, and the change of amplitude and frequence is bigger than that of velosity which proves further that dynamical characteristic is more sensitive to fracture than kinetic characteristic
進而通過潛山面和內幕地面地震記錄的數值模擬和波場特徵分析表明,潛山面和潛山內幕裂縫介質的波場特徵是不一致的,振幅和頻率的變化量大於速度的變化量,從而更進一步證明,對于裂縫的敏感性,動力學特徵優于運動學特徵。Test results are analyzed in one third octave band spectrums mainly regarding vibration - sensitive instruments and emphasizing on low frequency band
測試結果的分析主要是針對振動敏感儀器的,在頻域內採用1 / 3倍頻程頻譜,重點考慮低頻段的地面響應。New consumption character, such as higher quality and more reliable production, individual design fashion, more and more production varieties etc., spur enterprises to content customer ' s demand diversity. so agile manufacture ( am ) with multivariety, little batch of production and high frequency may be mainly essential production ways in next century
顧客對產品質量和可靠性要求越來越高,產品品種日益增多,顧客個性化設計漸成時尚,這些需求上的新特徵,促使企業必須能夠不斷滿足需求的多樣性,因此,多品種、少批量、多頻次的敏捷製造將成為二十一世紀生產的重要特徵。Sensitivity of natural frequencies of gear - shaft system of time fuze
引信齒輪傳動系統扭振固有頻率的設計靈敏度分享友人