band component 中文意思是什麼

band component 解釋
條帶狀顯微組分
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  • component : adj 構成的，組成的，合成的，成分的。 component motion 【物理學】分運動。 component part 組成部分...
  1. Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced

    混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗，以及許多微波測量系統中至關重要的部件。在現代通信系統中，毫米波頻段通常採用超外差接收機，混頻器作為第一級就成為關鍵部件。由於在毫米波頻段，同頻段高性能的本振源成本高，技術難度大，採用分諧波混頻技術是解決此問題的有效途徑，只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。
  2. While simulating the resonant circuits, we finished a microstrip resonance, which has high q - factor and fits to design w - band low phase noise oscillators. select beam lead hyperabrupt junction varactor and gunn die made in china as vco ’ s frequency turning component and minus resistance

    此外，文中還對w頻段微帶結構直流偏置網路、微帶波導過渡等外圍電路進行了模擬優化，設計方法和結論對毫米波微帶電路設計具有通用的參考價值。
  3. The main products are just like electric heater for freezer, metal heating tube, heating band cable, rv rvv wire and cable series, power cord plug cable, component for thermoatat, temperature sensor etc

    公司現主導產品為家用冰箱電加熱器金屬管電加熱器電熱帶發熱電纜rv rvv系列電線電纜電源線插頭限溫器組件溫度傳感器組件等。
  4. Was first processed by dgd embedment and embedment - free technique and general technique for em morphology. a perinuclear structure consisted of interacted filaments we called lamina - like structure was observed. then using western blot assay, we found a lamin - like component band of 68kd protein in the three - step - fractionated cells. to investigate the distribution of the lamin - like protein in cells, a immunofluorescence experiment for in situ hybridization was designed using goat anti - lamin protein antibodies as the probes. the results revealed that the positive reactivity presented at different part of the cells. the perinuclear cross - actions were distinct, and cross - action with the oral apparatus and the cortex were also obtained

    本文以dgd包埋去包埋技術對草履蟲的核纖層通過透射電鏡和免疫熒光分子雜交等技術進行了觀察。結果顯示，在核周存在由10nm纖維組成的核纖層免疫熒光結果表明，在核周呈陽性反應，並在其表皮口器等部位呈交叉的陽性反應蛋白分子雜交的反應帶在68kd處呈陽性反應。
  5. Chapter six realizes the ka band 0 - pm t / r component on the basis of above - mentioned function parts

    第六章在前述各個功能部件的基礎上實現了ka波段0 -調相收發組件。
  6. Principal component analysis ( pca ), segmented pincipal components transform ( spct ), band selection based on genetic algorithm ( ga ) and high order component are introduced here, which are all effective in for dimensionality reduction

    本文介紹了主分量分析、分段主成分變換、基於遺傳演算法和高階矩的波段選擇四種降維方法。
  7. As the key component of multiplexer / demultiplexer, optical filter technology has been fueling great interest with the emergence of wide range tunable laser source, all - wave fiber, and wide band optical amplifiers, which is promoting dwdm to a leading edge of optical fiber communication

    隨著寬可調諧激光光源、全波光纖和超寬帶光放大器的出現，密集波分復用日益成為光纖通信的主流技術，作為復用/解復用器核心的光濾波技術備受關注。
  8. 754 horizontal - component digital broad - band records in western north america are processed. the acceleration response spectra are calculated and used as part of the database. the response spectrum values are estimated by the earthquake magnitude definition and are used as another part of the database

    將美國西部地區作為參考地區，對美國南加州地區的數字寬頻帶記錄進行了搜集與處理後作為觀測資料，共754條水平向記錄，與利用震級定義所估計的反應譜值一起，用統計回歸的方法建立美國西部長周期加速度反應譜衰減關系。
  9. The methods and the experimental setups for measuring the gain and noise figure of an edfa are emphasized. we introduce how to measure the characteristics of each component of an edfa, especially the gain and absorption coefficient of an erbium doped fiber ( edf ). thirdly, four types of simple and novel l - band edfa structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a dwdm system

    基於考慮自發輻射噪聲（ ase ）的giles模型，建浙江大學博士學位論文立了這種edfa的全光增益箱制理論模型;理論和實驗分析了四種可能的光路結構、泵浦波長、光纖光柵反射波長和反射率、泵浦功率以及摻餌光纖長度等參t對其箱制特性的影響。
  10. It mainly includes following aspects : in this paper, firstly implication of wavelet analysis in signal harmonic component extraction is presented in detail, and on this foundation signal given frequency band component extraction method is proposed. then we investigate frequency aliasing phenomenon, reason why frequency aliasing phenomenon is easy happened when wavelet is implied in field of motor fault diagnosis, and frequency bands where frequency aliasing phenomenon is easer happened, and put forward approved morlet wavelet analysis method which can effectively alleviates frequency aliasing phenomenon. third we set up vibration signal detected system, design experiments to obtain three groups of fault signals : eccentricity fault, mixed fault of eccentricity plus mild rub, mixed fault of eccentricity plus moderate rub, and process these data using analysis method proposed in this paper

    首先對論文的選題以及相關背景進行了探討，並對相關的小波基礎理論進行了闡述，主要針對感應電動機的偏心故障和偏心+碰摩復合故障形式及相關的應用演算法進行了詳細探討，主要工作內容包括下面幾個方面:在論文中，首先對小波分析在信號的諧波分量提取中的應用進行了研究，在此基礎上，提出了信號的特定頻帶成分的提取方法;研究了小波分析的頻域混疊現象，探討了小波分析應用於電機故障診斷領域時易發生頻域混疊現象的原因，以及混疊現象較易發生的頻帶，提出了可以有效減輕頻域混疊現象的改進的morlet小波分析方法;搭建了振動信號檢測系統，設計實驗採集得到三組故障數據:偏心故障，偏心+輕微碰摩復合故障，偏心+中度碰摩復合故障，並對這些數據應用本文提出的分析方法進行信號處理，提取出的特徵參數可有效區分這兩種故障形式;研究了基於matlab和labview的混合編程方法，完成了電機故障檢測系統的軟體開發。
  11. The technology on the processing and detection of the extreme - ultraviolet radiation and x - ray ( euv / x - ray ) optical component is one of the main categories in modern short - wave band optical research

    極紫外與x射線（ euv x - ray ）光學元件的加工與檢測技術的研究是近代短波段光學研究的主要范疇之一。
  12. The exact design methods of switched - current filters are summarized, such as the director synthesis of z - plane, euler mapping, state variable analysis, matrix decomposition, and signal - flow - graph simulation of the lc and switched capacitor prototypes. at the same time, a modified left decomposition matrix method is proposed to overcome the usual problems of large silicon area, high sensitivity and component spreads by minimizing the input circuits. examples of switched - current low - pass, high - pass and band - pass filters are given to verify the feasibility of these methods

    總結分析了實現高精度開關電流濾波器設計的各種實用方法，包括z域綜合法、歐拉映射法、模擬無源lc網路和開關電容網路的狀態變量法、矩陣分解法和信號流圖轉置法，並對左分解法加以整理改進，提出一種更為簡潔的設計結構，通過減化輸入電路克服一般電路中存在的佔用矽片面積大、靈敏度高等問題。
  13. Frequency source is widely used in today ' s electronic equipment and even refered as " a heart " of many electronic systems. the frequency synthesizer with a lot of channels and high frequency stability by means of theory of phase locking has almost been a necessary component in the modern electronic systems such as telecommunication, radar and electronic countermeasure. the phase - locked frequency synthesizer can be generally divided into two kinds : one is digital phase locked frequency synthesizer, the other is analog sampling phase locked frequency synthesizer. compared with the prior, the latter has many merits such as lower phase noise, samller volume, lighter weight and lower power consumption and has a wide foreground in the equipments of microwave band

    利用鎖相原理來獲得波道數目眾多、頻率穩定度很高的頻率合成器，幾乎已成為現代通信、雷達和電子對抗等電子系統不可缺少的組成部分。鎖相式頻率合成器一般分為數字鎖相頻率合成器和模擬取樣鎖相頻率合成器兩類。取樣鎖相頻率合成器與數字鎖相頻率合成器相比，具有相位噪聲低、體積小、重量輕和功耗低等優點，尤其在微波波段的電子設備中，具有廣闊的應用前景。
  14. Road vehicles - electrical disturbances by narrow - band radiated electromagnetic energy ; component test methods - part 5 : stripline iso 11452 - 5 : 1995

    道路車輛.窄帶輻射的電磁能量產生的電子干擾.部件試
  15. Since the spectrum of the helicopter noise contains wide band continuous component and narrow band line component, we can use the wide band signal detection method or narrow band signal detection method. both detection methods are discussed

    直升機噪聲既含有寬帶連續譜成分，又有很強的窄帶線譜分量。根據直升機噪聲的特點，我們既可以採用寬帶能量檢測，又可以採用窄帶線譜來檢測直升機信號。
  16. On the basis of introducing microwave components and parts basic theories in detail, this text develops ka band 0 - pm t / r component

    本文在詳細介紹微波元器件基本理論的基礎上，研製了ka波段0 -調相收發組件，完成了組件的正樣設計。
  17. The research object of traditional dm method is the output of base - band dsss / bpsk signal delay and multiplication processing or the base - band component of output of if dsss / bpsk signal delay and multiplication processing

    傳統的延遲相乘法研究對象是基帶信號的延遲相乘輸出，或中頻信號延遲相乘輸出的基帶部分。
  18. In this thesis, research on the basic scheme of the miniature low phase - noise mm - wave phase - locked frequency synthesizer is presented, and the circuit design and testing of the function component the x - band low phase - noise single output frequency synthesizer are also given

    本文主要是對毫米波頻段的小型化、低相位噪聲鎖相頻率合成源的基本方案進行了研究，並研製了其功能組件? ? x波段低相位噪聲點頻源。
  19. Road vehicles - electrical disturbances by narrow - band radiated electromagnetic energy ; component test methods - part 1 : general and definitions iso 11452 - 1 : 1995

    道路車輛.窄帶輻射電磁能電子干擾.部件試驗方法.第1
  20. Waveform design and generation is a key component of ultra - wide band radar, whose qualification and performance directly influence the performance of the whole radar system

    超寬帶雷達波形的設計與產生部分作為超寬帶雷達中的一個關鍵組成，它的指標和性能將直接影響到整個雷達系統的性能。
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