相位的 的英文怎麼說
中文拼音 [xiāngwèide]
相位的
英文
phasic-
Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used
通過對差頻信號進行的分析,得出了差頻相位的具體表達式,表現出了要檢測的各量的物理意義,對檢測的方法提供了理論依據。利用二維fft方法,可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題,採取時間波門的處理方法。At the same time, differen t arrays of electrodes have been studied. flow visualization has shown that the plasma between symmetric streamwise electrode strips ca n ' t induce flow velocity at the same phrase driving but can at multi - phrase driving, and asymmetric streamwise eledtrode strips can induce flow velocity both at the same phrase and at multi - phrase driving in still air. in principle, the experimental results correspond to that of the cooperant research between university of tennessee and nasa langley research center
流動顯示實驗表明,在一個大氣壓下,對于電極對稱分佈的情況,在同相位的射頻激勵下,靜止的空氣中沒有明顯的現象,而在多相位射頻激勵下,靜止空氣中的二維平板上可以產生推力,誘導了流場;對于電極的非對稱分佈的情況,在同相位或多相位的射頻激勵下,都能在二維平板上產生推力,並誘導流場。The tianbaoshan and daliangzi pb - zn deposits, strictly controlled by " formations, phases and structures ", are typical mvt pb - zn deposits. they also belong to the epigenetic hydrothermal strata - bound deposit
天寶山、大樑子礦床嚴格受「層、相、位」的控制,屬後生熱液層控礦床,也是典型的密西西比河谷型鉛鋅礦床。Abstract : in fourier transform profilometry, because of the nonlinear relationship between the irradiant incident upon a ccd dete ctor andthe voltage it outputs, it will cause phase evaluation errors. here, we ex plain the errorsource by theoretical deducing, then make a simulation. at last, a method to decrease thiserror is put forward
文摘:在傅里葉變換輪廓術中,由於ccd探測器光電響應的非線性,將在測量中引入高次項,從而對相位的求解造成較大誤差,通過理論的推導定性地解釋了誤差的來由,並用計算機進行了模擬計算,最後提出了減小誤差的方法。Abstract : temporal properties of the second - ordre process with a chirped incident pulse are theoretically calculated. the chirp influences the irradiance and the pulse shape of the second harmonic wave with large phase mismatch. the phase distortion of all three waves is dependent more strongly on the chirp than on the phase mismatch
文摘:討論了在大相位失諧下,基波為頻率啁啾脈沖的二次諧波產生過程,結果表明選取合適的啁啾參量可以使二次諧波的光強提高,但同時會使其波形和相位發生變化.三波相位的畸變主要取決于入射的基波啁啾脈沖,而與相位匹配的失諧量關系不大Women with this placement have trouble with men
有這相位的女性容易跟男性起沖突。The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage
系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速,減少了逆變器輸出電流的諧波,降低了脈動轉矩,提高了電壓的利用率。In order to obtain a high - quality speech codec, the phase information of speech should be included in codec. in this thesis, a method for quantizing the phase of sew ( slowly evolving waveform ) and reconstructing sew ’ s phase with cubic polynomial interpolation is given based on the perceptual weighting analysis - by - synthesis ( a - b - s ) vector quantizer for the phase spectrum in wi coder
本文基於感覺加權相位譜分析合成( abs - analysis - by - synthesis )矢量量化方法,給出了一種wi編碼器中慢漸變波形( sew - slowlyevolvingwaveform )的相位信息量化及合成端相位的三次多項式插值重建方法。In recent years, the worldwide researchers pay much attention to fourier telescopy. it is an active imaging technique that encodes the information in the temporal instead of spatial domain, then receives the speckle and deposed of it to reconstruction the object image. now, the high - resolution technique is under the condition of deeply researched
它是一種主動式干涉成像技術,這一技術通過時域內的相位的調制完成直線條紋對目標的掃描,從而達到對深空目標頻譜的抽樣,然後接收其散射回波,對回波信號進行處理,進而還原出目標的像。Internal bio - field tumor thermotherapy system : internal bio - field thermotherapy, in abbrevitation, uses two high frequency sources with different frequencies and phases to cross act human body. it is kind of therapeutic method which could heat the whole or locals with physical energy, without damages of normal tissue, while directly inducing apoptpsis of tumoe cells
內生場熱療系統是採用兩組不同頻率相位的高頻源交叉作用於人體,利用物理能量加熱全身或局部,既不損傷正常組織,又使腫瘤細胞凋亡的一種治療方法。When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis
對壓制式干擾來講,干信比越大,雷達的發現目標的概率就越小,由於分散式干擾的干擾效能在於其合成功率,在分散式干擾單元分佈之後,各個干擾源與被干擾對象之間的距離的不確定性,帶來了干擾信號相位的不確定性,增加了分析干擾效能的復雜度。Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation
低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數,我們借鑒isar的技術,通過較長時間的相干積累,在多普勒頻域上對目標進行分辨。而對于編隊目標,可分為近似剛性的多目標和非剛性的多目標,所以對于可以近似為剛體的編隊目標相對位置固定,運動方式一致,可以近似看作一個大目標,採用最小墑準則對平動相位的進行補償,但是大多數並不滿足剛體近似的編隊目標,由於目標在相干積累時間的多普勒頻率近似呈線性變化,通過對較短數據利用relax的時頻分析方法,提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間,所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨,對模擬和實測數據的大量分析結果表明此方法的有效性和可行。Our objective in such an areal arrangment of detectors is to ensure that the reflection signal is substantially in phase at all detectors.
這種檢波器面積組合的目的是保證在所有檢波器上的反射信號實質上是同相位的。Overtaking. besides, this thesis also presents fuzzy - based multi - phase intelligent signal control strategy according to the deficiencies of present traffic signal control system and the research of fuzzy traffic signal control, this signal control strategy focuses on the single junction signal control problem, though imitating the ways of traffic police managing the traffic, it has the ability of intelligent phase changing and controlling in the light of the real traffic flow, the simulation result shows : in two - and multi - phase conditions, the average vehicle delay is reduced by 15 % and by 27 % compared with the general fuzzy control method
此外,本文還根據目前交通信號控制方法的不足以及現有的運用模糊控制技術進行交通信號控制研究上的欠缺,提出了基於模糊控制的多相位智能擬人信號控制策略,該控制策略以單交叉口的信號控制為研究對象,通過模擬交通指揮者實際進行交通控制的特點,使控制系統能實時根據各相位車輛的多少進行信號的智能控制,模擬結果表明:與普通模糊交通信號控制方法相比,在兩相位與多相位的模式中可分別減小平均停車延誤平均15和27 。Shapes of pulse envelope are found to have some effect on the degree of phase influences. dependence of single - cycle pulse ( scp ) energy on the carrier phase has been studied for gaussian, lorentzian, hyperbolic secant and sine shapes respectively, which shows that these energies can be expressed in the same form. phase effect on pulse with gaussian envelope is the first to show, then are hyperbolic secant and lorentzian pulses, and sine the last
包絡對載波相位的作用范圍也是有一定影響的,我們對高斯、洛侖茲、雙曲正割和sinc四種不同包絡的脈沖,研究了單周期脈沖能量隨載波相位的變化規律,發現以上四種脈沖的歸一化能量均可在形式上用同一表達式表示,並發現對于這四種不同包絡的脈沖,高斯脈沖相位的作用最早體現出來,然後是雙曲正割和洛侖茲脈沖, sinc脈沖最遲。Based on the research of the complex angle and the bias compensation techniques, the dynamic compenstion with relative phase is developped for elevation tracking & measure with the amplitude - comparison monopulse radars, and it is proved to be a optimum technique by thoery and simulations
因此,在深入研究復角法和固定偏差補償法的優缺點基礎上,本文針對單脈沖比幅測角體制的雷達,提出了一種新的俯仰角測量演算法?聯合相位的動態偏差補償法,理論分析和計算模擬證明這種演算法了這種演算法的優越性。It is indicated that hermitian wavelet has the ability to sensitively recognize the transient phase of signal through comparing the advantage and shortcoming of many kinds of methods used for singularity detection of signal
通過分析對比信號奇異性檢測的各種方法的優點和不足,指出復數hermitian小波具備準確識別信號瞬時相位的能力。The flowing aspects take much of the tension out of the opposition aspects
流暢的相位可釋放對沖相位的壓力。The resultant electric field will be asymmetric and vary along specific direction when asymmetric electrode strips or multi - phrase driving is employed, which cause flow accelerate. that is the essential of paraelectric and peristaltic. 3
採用非對稱的電極分佈或者在對稱分佈的電極上施加多相位的激勵電壓,合成了一個非對稱而且是沿著某個方向變化的電場促使流動加速,這就是順電加速效應和蠕動加速效應的本質。Standard practice for electrolytic extraction of phases from ni and ni - fe base superalloys using a hydrochloric - methanol electrolyte
用鹽酸甲烷電解質從鎳和鎳鐵積超熱合金中進行相位的電解提取分享友人