relative bandwidth 中文意思是什麼
relative bandwidth
解釋
相對頻帶寬-
Two kinds of filters are presented : by transferring the conventional waveguide cavity filter to the siw, a narrow bandstop filter is designed and simulated, get characteristic of narrow - band bandstop filtering. for example, relative bandwidth 1. 2 %, most attenuation of 48db in band. electromagnetic bandgap ( ebg ) structures present “ forbidden band ” characteristics, siw features high - pass characteristics, so bandpass filters can be composed by combing ebg and siw
本論文提出了兩種基片集成波導濾波器結構:將傳統的腔體濾波器概念運用於基片集成波導結構，設計出了一種窄帶帶阻濾波器，對其進行模擬，得到了窄帶帶阻濾波特性，如相對帶寬為1 . 2 % ，最大衰減為48db 。 -
( 3 ) in the dy - lamp experiments, we study the spectrum distribution of relative - energy. firstly, it is tested by providing bandwidth and the numbers of the band according as a standard of the solar simulator. the result shows it cannot achieve a standard of the solar simulator that the spectrum distribution of the dy - lamp is simulated the solar spectrum ; however, if according as b standard, then it can attain the request of b standard of the solar simulator
研究了鏑燈光譜相對能量分佈，首先根據a級模擬器提供的帶寬和帶數對鏑燈的光譜能量分佈進行了測試，測試結果表明，利用鏑燈來模擬太陽光譜達不到a級模擬器的要求；根據b級模擬器提供的帶寬和帶數對鏑燈再次進行測試，並與b級的光譜失配誤差進行比較，結果表明，利用鏑燈來模擬太陽光譜可達到b級模擬器標準。 -
It has such feathers as multi - resolution, constant relative bandwidth, and the ability to indicate the local features of signal in time and space. after wavelet transform by using proper wavelet basis functions, the epileptic waves can be separated at different scale, then we can detect the epileptic waves by using the wavelet transform result at the proper threshold value
本文選取適當的小波函數，將信號進行連續小波變換，把腦電信號中的癲癇特徵波在不同的尺度下分離出來，然後選取特定尺度下的變換結果，通過閾值判定方法對棘波進行檢測。 -
Finally according to the above mentioned results, two universal ulpa were made and their performance were tested. these results indicated that on the whole, the values of parameters, such as sensitivity of each element, center frequency, relative bandwidth and cross coupling among near elements and so on, and their consistency all meet the ask of technique. therefore, both of transducers performance are favorable
最後根據上述研討結果，製作了兩個通用超產相控線陣換能器，並進行了性能測試，結果表明兩個換能器各陣元靈敏度、中心頻率、相對帶寬、相鄰陣元間串波等參數值及其一致性均基本滿足技術要求，換能器性能良好。 -
Based on the dds technology, the waveform generator first stored data in high speed ram, then used dac to synthesize waveform by the data. many waveforms could then be generated easily. besides, the wave generator could get high performance on frequence resolution and stability, phase continuum, relative bandwidth etc. the dds technology was widely used in frequence synthesis field
基於dds技術的波形發生器以高速存儲器作為波形數據查找表、通過高速d / a轉換器對存儲器的波形進行合成，可以靈活產生多種波形，同時具有頻率解析度高、頻率穩定性好、頻率轉換快、相位連續性好以及相對帶寬較寬等特點。 -
For the selection of filter parameters, we have introduced the constant relative bandwidth, the display - equalized filter, optimal filtering and linear time resolution, among these the linear time resolution is a new method set up by this paper
對濾波參數的選擇，詳細介紹了常相對帶寬、均等顯示濾波、線性時間分辨、最佳濾波等，其中線性時間分辨是本文首次提出的新方法。 -
Due to restriction with the array aperture transition time, traditional phased array radar works under relative narrow signal bandwidth, so this restricts the application of phased array radar in the field where high performance is demanded. however, optically controlled phased array radar ( ocpar ) adopts the photoelectron technology, counteracts the aperture transition time via the method of optical true time delay ( ottd ), so it can realize wide instantaneous bandwidth and squint - free operation ; meanwhile, it can realize the miniaturization of phased array radar and has super anti - electromagnetism interference capability
而光控相控陣雷達採用光電子技術，通過光實時延遲的方法來抵消孔徑渡越時間，可以實現相控陣雷達的寬帶寬角掃描;同時也可以使得相控陣雷達小型化，並具有強的抗電磁干擾的能力;另外，由於光纖傳輸具有損耗低、頻帶寬等固有優點，採用光纖連接雷達天線和雷達控制中心，可以使兩者的距離較採用同軸電纜有較大的提高，更有利於保護雷達控制中心。 -
It shows that the coaxial disk cylindrical waveguide with longitudinal ribs, which is one of large diameter, all - metal structure and allows for high average power capability, can improve the propagating wave ' s characteristics and gain a relative broad bandwidth by means of modifying the geometrical dimensions of the circuits
結果表明：脊加載盤荷波導是一種尺寸大，功率容量大的全金屬結構，在加脊后可以改善導波特性，提高帶寬。二、對脊加載盤荷波導注波互作用的線性理論進行了研究。 -
3 ) < wp = 12 > using perturbation analysis, the space - correlation loss and the bearing - estimated error for finite - bandwidth incoherently distributed sources are evaluated analytically, respectively. it is disclosed that bandwidth - induced bearing bias increases monotonously with the signal ' s relative bandwidth. when the relative bandwidth is not small enough to be negligible, the spatially - only processing cannot lead to accurate bearing estimate, that is, the joint space and time processing is necessary for high - precision bearing estimation
3 ）利用擾動分析方法，解析評價了有限帶寬引起的非相干分佈源的空間損耗及其對波達方向估計的影響；分析表明，帶寬擾動引起的方向估計偏差隨信號相對帶寬單調增加；當相對帶寬無法忽略時，為了得到高精度的波達方向估計，需要進行聯合空時處理。 -
To the primary contradiction of real - time interactive visual simulation, limited bandwidth of network and real time transmitting parameter of relative to move sight, the control mechanism of 3 - d visual object is discussed, under the direction of hla idea, the visual federal object model vfom is established to describe the visual data distributing ; the author designed a grammar of vfom context and a turing conversion mechanism, it will support exploitation of visual simulation in different field ; the author analyses and apply opengl to design a method of implement real - time interactive visual simulation on pc, in additional with object - oriented program technique network communication technique multithreading technique, implement pc - virsp. there are 7 chapters in this thesis. in chapter 1, the developments of virtual simulation is looked back, the aim and significance and the main search content is put forward
論文針對實時交互視景模擬的主要矛盾，即網路有限帶寬與視景運動交互參數實時傳輸矛盾，探討了三維視體運動控制機理，結合hla思想，建立視景聯邦對象模型（ vfom - visualfederalobjectmodel ）來描述視景數據分佈；並設計了模擬實體鏈描述文本文法及其存儲轉換機制，有效支持多領域視景模擬系統開發；分析並應用圖形介面標準opengl ，設計了基於pc機的實時互操作視景生成方法；針對網路分佈環境下視景模擬實時交互需求，設計視景運動同步控制方案；並綜合應用了面向對象編程技術、網路通信技術、多線程技術，實現了基於pc機的視景實時互操作支撐平臺（ pc - vrisp ? real - timeinteractivesupportingplatformforvirtualsimulationbasedonpersonalcomputer ） 。 -
The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias
通過計算得知，使傳感器相位偏置為/ 2 ，減小電極間距，提高電光重疊因子，減小器件插入損耗，採用合適的分段數，增加電極長度，增大光功率，降低激光的波長，減小相對強度噪聲，減小接收帶寬，對提高靈敏度的效果是非常明顯的。而減小天線長度，降低調制器電容，電極分段，都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率，採用較低的光學偏置，都可以增大線性動態范圍。 -
The third, some groping researches are made on broadband coaxial line filter output circuit of klystron. a broadband output circuit - mode four coupling slots double - gap output cavity loaded with coaxial filter, which has a workable relative bandwidth bigger than 14 % and fits in with l - band multi - beam klystron, is designed. meanwhile some analysis of its stability and peak power capacity is made
第三，對速調管同軸線濾波器寬帶輸出迴路進行研究和探索，設計出了一個適合用於l波段多注速調管、相對帶寬超過14的四耦合槽模強耦合雙間隙腔加載同軸線濾波器輸出迴路，並對其穩定性和峰值功率容限做了一些分析。 -
Firstly, in this paper, the basic principles of sar imaging are exploited following the analysis of sar imaging process ; it is shown that the imaging algorithm of traditional sar can be used effectively only on the condition of narrow relative bandwidth signals, narrow azimuthed processing angle and narrow swath width. large range migration has brought many new features and difficulties. after comparing many imaging algorithms, we find out the direction research of the uwb - sar imaging algorithm
本文首先從sar成像的原理出發，分析了sar成像處理過程；指出傳統sar的高效成像演算法只有在窄信號相對帶寬、窄方位向處理角、窄條帶寬度的條件下才能有效運用，大距離徙動給大處理角uwb - sar成像帶來了許多新的特點和難點，據此分析比較了各種成像演算法，找出了適合uwb - sar高效演算法研究的基礎。 -
The tariff to pay each month by each isp for the total outgoing and incoming traffic is related to the relative bandwidth of the international circuits shared exclusively among the isps. the local traffic between operators in macao must be routed locally
每個網際網路服務供應商之月費將由供應商對分，所付之金額將根據個別供應商在共同專線上的使用頻寬而定。 -
And the parameter data and the figures have not been calculated ever. compared with the performance curves of the primary aod, the aod with the optimum design shows great capacity : at the extreme point of bragg diffration the optimized one obtain a 2. 4 times wilder relative 3db bragg bandwidth than the primary one ; and with the same relative 3db bragg bandwidth which is 0. 67, the optimized aod has a relative 2 times of the the primary aod
用圖示的方法將優化設計后的曲線與非跟蹤的曲線進行對比，在進入布拉格衍射區的臨界點處經優化設計的器件相對帶寬達到非跟蹤器件的相對帶寬的2 . 4倍;在相對帶寬? f = 0 . 67的情況下，經優化設計的器件相對長度是非跟蹤器件相對長度的2倍。 -
Meanwhile a valuable conclusion that general cylindrical box type windows with dielectric disks made of al2o3 ceramic can be used to transmit cw of higher power than 120kw and workable relative bandwidth may achieve about 14 % in l band, is made by calculated results of some typical examples
同時，通過計算一些典型的實際問題得出了一個具有重要價值的結論：在l波段，採用al _ 2o _ 3陶瓷窗片的普通圓柱盒型窗可用於傳輸120kw以上的高功率連續波，並且具有14左右的可工作相對帶寬。 -
Two type microwave bandpass filters are applied to meet different bandwidth requirements. the filters of the 2 % relative bandwidth is realized by ^ / 4 coupled waveguide filters, whereas the ones of 1 % relative bandwidth utilizes e - plane septum mounted in the wavefuides. very compact diplexers are achieved by different configurations individually
根據不同的設計指標，作者提出了兩種雙工器模型：波導分支濾波器雙工器和準平面e面波導雙工器；並且選用不同的濾波器形式來實現通道濾波器：用4耦合波導濾波器設計出相對帶寬為2的窄帶濾波器，而相對帶寬僅為1的極窄帶濾波器是採用過正面濾波器來實現的。 -
To the primary contradiction of rtdivs, limited bandwidth of network and real time transmitting parameter of relative to move sight, the modeling theory, and the method of development and encoding theory are researched deeply. interactive platform of automation vectorization of 2 - d image and remarking is set up in this way. the control mechanism of 3 - d visual object of agent is discussed, and vf - sdm, visual federation synthetic development method is presented
論文以作者建立的信息模型反映理論為指導，針對rtdivs的主要矛盾，即網路有限帶寬與視景運動交互參數實時傳輸矛盾，對模擬建模理論、軟體開發方法、信息編碼理論進行了深入研究，建立了二維圖像自動矢量化標注交互軟體平臺，深入探討了三維視體自主運動控制機理，提出了視景聯邦綜合開發方法（ vf - sdm - visualfederationsyntheticdevdopmentmethod ） 。 -
In the far field impsar application or if the relative bandwidth of the system is not very large, w - k is also equivalent to b - p
在小積累角或遠場條件下， -演算法與b - p等效。
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