frequency bias 中文意思是什麼
frequency bias
解釋
頻偏-
According to the present status of studying the solar flare using gps, a new algorithm of processing gps data studying the solar flare is brought forward : after the instrumental bias has been determined, with the data of dual - frequency gps code and phase and navigation message, the vtec at the satellite ' s epp can be worked out
根據現在研究太陽耀斑的實際情況，提出了利用gps研究太陽耀斑的數據處理方法：利用雙頻觀測值確定出儀器偏差后，再利用碼和相位觀測值，結合導航電文就可以求出電離層交叉點的沿天頂方向上的電子總量vtec值。 -
The influence of msfvw bandwidth on the diffraction efficiency is also considered. for the nonuniform bias magnetic field of u - type parabola profile, when the msw frequency is less than the cut - off frequency at the edge of mo film, the effective mo interaction length reduces. the edge cut - off frequency is determined by the maximum of the nonuniform field
對于拋物型分佈（開口向上）的偏置磁場，當激發靜磁波的rf頻率小於邊緣截止頻率時，磁光作用的有效長度減小（與靜磁波頻率有關） ;邊緣截止頻率由不均勻磁場的最大值決定，靜磁波的下限截止頻率由不均勻場的最小值確定。 -
In the traditional polarization diversity and combining scheme, differential mode loop and common mode loop is combined to lock in the phase and frequency of the diversity signals and remove the carrier frequency bias and doppler shift
傳統的極化分集接收方案是將差模環和共模環相結合完成兩路信號的同頻同相鎖定以及多普勒頻率偏移的去除。 -
Sic film was coated on the surface of 316l stainless steel by substrate bias - assisted radio frequency ( rf ) sputtering as tritium permeation barrier ( tpb ) of first wall and blanket in fusion reactor
採用分步偏壓輔助射頻（ rf ）濺射法在316l不銹鋼表面制備了sic薄膜。掃描電鏡（ sem ）觀察表明膜緻密、均勻、與基體結合牢固。 -
A tunability of 60 % and figure of merit of 133 have been achieved under 30v dc bias, demonstrating their usefulness for frequency - agile microwave devices at the liquid nitrogen temperature
在液氮溫區表現出很好的微波器件應用前景。 4 、採用pld方法制備了高凰100 ）取向的bao . ssr05五o創51卿si集成薄膜。 -
Cubic nitride boron ( c - bn ) films have been prepared at room temperature ( 25 ) by radio frequency plasma enhanced pulsed laser deposition ( rf - pepld ), assisted with substrate negative bias. in this paper, we primarily studied the effect of laser energy density, radio frequency power, substrate bias and depositing time on the growth of c - bn films, and analyzed the formation process and mechanism of c - bn films deposited by rf - pepld method at room temperature
本文採用偏壓輔助射頻等離子體增強脈沖激光沉積（ rf - pepld ）方法在常溫下（ 25 ）制備立方氮化硼（ c - bn ）薄膜，初步研究了薄膜沉積參數：激光能量密度、射頻功率、基底負偏壓和鍍膜時間對立方氮化硼薄膜生長的影響，並分析了常溫下用rf - pepld方法沉積立方氮化硼薄膜的形成過程和機理。 -
Aperture synthesis uses interferometry technique to improve the limitations set by antenna physical aperture while working at lower frequency. phase and amplitude calibration of the visibility samples must be carried out to compensate for system bias before measurement
綜合孔徑技術利用了以小口徑天線陣列合成大的觀測口徑的技術，解決了在較低頻率時天線物理口徑要足夠大才能得到期望的空間解析度的嚴重缺陷。 -
In the fourth chapter, a fourth - order chebyshev low - pass filter employs new low voltage, highly linear, wide inputting range transconductor is proposed, then we presents a new circuit to tune gm value of transconductor accurately, which employs a new switched - capacitor circuit to change the bias current of transconductor, a third order elliptical function low - pass filter with accurate tunable frequency has been designed using transconductor that is not only with voltage common - mode negative feedback, but also with varying bias - triode transistors which can improve the linearity of this circuit
第四章：提出了一種新的低電壓、高線性度、寬輸入范圍跨導，並由此設計實現了四階切比雪夫（ chebyshev ）低通濾波器，接著提出了一種寬輸入范圍且具有電壓共模負反饋的全差分跨導，並採用一種新的開關電容電路實現跨導值gm精確可調，從而可以設計得到高性能具有精確截止頻率的跨導-電容三階橢圓函數濾波器。 -
This paper has discussed preparing diamond - like carbon films by means of micro - wave ecr plasma source ion implantation and plasma enhanced chemical vapour deposition. we use the raman spectrum, ft - ir, afm and so on to study the dlc film. the result indicates : different bias voltage, frequency and gas flow rate of psii will have impact on sp3 proportion of dlc films, we find high bias voltage, low frequency and moderate gas flow rate can prepare high sp3 proportion dlc films ; we simply illustrate the influence of bias voltage on sp3 proportion of dlc films in pecvd
研究結果表明：在全方位離子注入技術中，不同的偏壓、頻率、氣體流量都對薄膜中sp ~ 3鍵比例有所影響，文中對具體的影響進行了分析，發現偏壓的增加、頻率的降低和適中的氣體流量可以制備出sp ~ 3鍵比例高的類金剛石膜；在等離子增強化學氣相沉積技術中，對偏壓對sp ~ 3鍵比例的影響也進行了簡單分析。 -
Because of the structure of the traditional polarization diversity and combining scheme is too complex, after researching the polarization diversity and diversity combining technology, a new structure of receiver is proposed. in this structure the uniform sampling second - order dpll is used to remove the frequency bias after frequency discrimination
該結構控制較為復雜，為此結合實際項目要求，在研究了極化分集接收關鍵技術的基礎上，提出了一種改進的極化分集接收機結構，即在鑒頻之後利用均勻采樣二階數字鎖相環誤差傳遞函數的高通特性去除各種頻偏分量。 -
In research on de - multiplexing of cwtdm signals, the trouble resulted from frequency bias is studied in depth, thanking to which a synchronization module for de - cwtdm is advanced
針對cwtdm模塊的關鍵問題一頻偏對幀同步的影響，作了深入的理論分析和模擬，進而提出了實際系統的時分分接同步解決方法。 -
And then the stability and the stable error response of the dpll are analyzed. there is an obvious doppler shift frequency offset in the received signal with flight at a high speed, in the dissertation the uniform sampling second - order dpll is used to remove the frequency bias for its excellent high - pass characteristic of the error transfer function
由於高速飛行的遙測目標在接收信號中會出現較大的多普勒頻率分量，而典型均勻采樣二階數字鎖相環dpll （ digitalphase - lockedloop ）的誤差函數具有高通特性，所以本文提出一種利用其高通特性來去除多普勒頻率分量的新方法。 -
In this paper, several typical roics, roic noise and processing techniques are analyzed systematically in theory, and the computer simulated experiments are done. in the third chapter, many performances are analyzed on typical cmos roic theoretically in detail, such as the non - uniformity, injection efficiency, bias steadiness, frequency characteristic and threshold - voltage non - uniformity
本文第三章首先對典型致冷型cmos讀出電路的非均勻性、注入效率、偏置穩定性、注入電流的頻率特性以及閾值電壓非均勻性等問題進行了較為全面的理論分析和計算機模擬實驗研究。
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