super band 中文意思是什麼
super band
解釋
超頻段-
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。 -
The merits of dds such as super fine frequency resdutlon 、 high frequency accuracy 、 easy programmed can be in combination with the excellent character of narrow - band tracing filter merits of pll
它可以將dds的超高頻率解析度、高頻率精確度、容易實現程式控制等優點與鎖相環良好的窄帶跟蹤濾波特性相結合。 -
By making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution 、 high frequency accuracy 、 very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step. while the electronically tuned filter abates the image interference and notably improves the selectivity. the theorem of frequency synthesizer and center - frequency - fixed filter is simply but adequately introduced first in this paper
課題中所採用的pll或dds pll鎖相頻率合成方法充分發揮鎖相環良好的窄帶跟蹤濾波特性，並結合dds的高頻率解析度、高頻率精確度和高速頻率捷變等優點，分別實現了系統所要求的高質量寬帶本振源和小步長頻率捷變；採用電調諧選頻技術，則大大改善了接收機的選擇性和抗干擾能力。 -
In this system two oscillator are used for mixing. pll for high local oscillator and dds + pll for low local oscillator. by making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution, high frequency accuracy, very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step
系統採用兩次混頻，其中高本振的設計採用pll鎖相環頻率合成來實現，充分發揮了鎖相環頻率合成器的優良特性，實現了系統所要求的高質量寬頻帶本振源；低本振採用pll + dds頻率合成來實現，結合pll優良的鎖相特性與dds的高頻率解析度、高頻率精確度等優點，實現了頻率的小步進高精度合成。 -
Ma travels to shanghai to look for his father and to learn kung fu from him, and in the process ma discovers that he has super human strength. he puts his extraordinary power to good use as he goes against the shanghai gangsters and their band of ruthless fighters ! co - starring terry fan from rikki o : the story of ricky and the legendary bruce liang from stephen chow s kung fu hustle, kung fu fighter is jaw - dropping kung fu fighting at its very best
馬力在拳館工作其間，認識了同鄉肥發林子聰飾，但因肥發在上海黑幫老大卓二部田啟文飾所控制的拳館使用假鈔而雙雙被卓二手下追殺，在逃避追殺其間，幸而被數位深藏不露的武林高手暗中相救，而馬力一度更誤認當中的也叔梁小飾為其父。 -
Based on the introduction it explores into the designing of the broad band filter and the super miniature of local oscillator source
在此基礎上提出了本文課題的重要意義，主要對收發信機中寬帶濾波器進行設計和探討、本振源超小型化。 -
Due to good chemical stability and electrical resistivity, high thermal conductivity and mechanical intensity, wide band gap and low thermal expansion coefficient, aln thin films can be applied for insulating chips for semiconductor devices with high power, thermal dissipation lagers for large and super - large scale integrated circuits, insulating layers or passivation layers for semiconductor
超薄鋁膜由於其特殊的的光學性質，在光學多層膜上有廣泛應用。氮化鋁薄膜化學穩定性高、熱傳導率高、機械強度高、電絕緣性能佳、高能隙、熱膨脹系數低，光學特性優良，可以用作大功率的紫外光學器件的散熱材料。 -
Design of super narrow band and comb - shaped multi - channel photonic crystal filters
超窄帶和梳狀多通道光子晶體濾波器設計 -
Fuhao hotel is the super four - star foreign tourism hotel invested by the xinhong kelong industry and trade development company of jiangxi. healthy and blissful facilities such as western restaurant, pub, hall, multi - functional banquet hall, conference centre, 30 rooms ktv, etc. at the same time, hotel also have communication, tv, swift wide - band network and commercial guest room furnished with the computer designed for commercial personnel specially that surfed the net of the advanced international standards
南昌富豪酒店擁有186間客房，設粵菜潮洲菜川滬菜贛菜等多種風味餐廳，擁有60個貴賓包廂，共1000多個餐位，以及西餐廳酒廊大堂吧多功能宴會廳會議中心30個ktv房等康樂設施。同時，南昌富豪酒店還擁有世界先進水準的通訊電視快捷上網的寬頻網路和專為商務人員設計的配有電腦的商務客房。 -
In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects
通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響，發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土，宜將特細山砂和機制砂進行合理復配，並選擇合適的外加劑和礦物摻合料，優化配合比設計，可生產c20 c40中低強度等級自密實高性能混凝土；研製開發出了具有高效減水、保塑、抗離析功能的外加劑，有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題；應用正交設計方法，對因素和水平進行合理選擇，確定了生產中低等級自密實混凝土的最優配合比；建立了中低強度等級自密實混凝土的工作性評價體系；提出了生產、施工及養護的質量控制技術方法。 -
The fiber raman amplifiers ( fras ) are more and more attractive for its particular virtues such as on - line, wide band, and low noise etc, and they are very fit for dense wavelength division multiplexing ( dwdm ) system of next generation charactered by its super large capacity and long transmission distance. fras are unsubstitutable in the fields such as optical fiber communication over the ocean, long haul transmission and exploitation of the entire low - loss band of fiber
光纖拉曼放大器因其特有的在線、寬帶、低噪聲等特點而越來越被人們關注，是一種非常適合下一代超大容量、超長距離dwdm系統的光放大器，尤其是在海底跨樣光纖通信、超長距離光纖通信以及開發整個光纖低損耗窗口等方面有著不可替代的優勢。 -
( email, web surf, broad band, multimedia, qos etc ) in 90 ' s, atm proved super excellent solution for performance and raffle engineering to isp. and many carriers found it is very economical to implement internet multi - service in atm network. but ip - based network is becoming more prevalent each year, pure atm based network is impossible in reality. in fact, today " s atm network is used to carry ip based traffic. so people wish to combine ip traffic and atm function in one network technology
Mpls （ multiprotocollabelswitch ，多協議標簽交換）就是在這種背景下產生的一種技術，而且越來越被運營商看好，成為在ip網路運營商提供增值業務的手段。 mpls是「多協議標記交換」 （ multiprotocollabelswitching ）的縮寫。它是一種根據「帶路由信息」的標記進行分組交換的新型網路通信技術，結合了交換技術和路由技術的諸多特點。 -
Having developed two theorems in the present thesis on the degeneracy properties of the photonic crystal in the super cell, i can give how the degeneracy will change in the band structure of the photonic crystal corresponds to the change of the translational symmetry of the photonic crystal
為了研究平易對稱性對光子晶體頻帶的影響，我在超包（ supercell ）中詳細研究了頻帶簡並的變化，並發展了幾個決定這些簡並變化的定理。 -
Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too
本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。 -
A two - dimensional microwave imaging system in x band with stepped frequency signal and real aperture antenna is established. two - dimensional super - resolution algorithm is applied in this system
本文圍繞實孔徑微波成像系統，在提高系統的角度解析度、二維超分辨處理和基於強散射中心分佈的rcs數據壓縮等方面進行了研究。 -
The low probability of intercept ( lpi ), the ability in super - resolution and anti - jamming of ultra - wide band radar challenge to the traditional receivers
超寬帶雷達具有低截獲性及抗偵察、抗干擾、抗摧毀等性能，對傳統的偵察體制提出了巨大的挑戰。 -
Super resolution pitch detection based on band - partitioning spectral entropy and signal decomposition in dct domain
分帶譜熵與信號分解的高精度基音檢測演算法 -
Super performance cmos band - gap voltage reference
帶隙電壓基準源設計 -
The milo works at 500mw c band driven by a 400kv, 60ka electron beam has been done in experiment. a new coaxial - structure super - reltron was explored to develop a low - impedance high - power microwave tube
我們還對c波段milo進行了實驗設計，理論結果為：在外加電壓400kv ，電流60ka ，微波輸出功率1gw ，目前實驗已經達到了500mw以上的微波輸出。
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