寬頻帶的 的英文怎麼說
中文拼音 [kuānbīndàide]
寬頻帶的
英文
wide-band-
The thesis focus on the numerical analytical method of curved broadband wire antennas. first, the paper introduced the development of broadband antennas, the common measures to broaden antennas " bandwidth and the study on curved antennas. second, the generalized halen integral equation ( mei ' s equation ) was derived based on the three basic equations of wire antennas by two means and its numerical solution method was discussed
本文就曲線寬頻帶線天線的數值分析方法展開研究,首先介紹了寬頻帶天線的發展,實現天線寬頻帶的常用方法和曲線天線的研究現狀,然後在直線加載天線滿足的方程的基礎上用兩種方法推導了曲線天線滿足的推廣的海倫積分方程( mei 』 s方程) ,討論了不同基函數下方程的數值解法。On data level, it is firstly explored fusing signature data from sparse - band collocated radars to obtain wider band target frequency response. the most difficult problem which restricts the fusion process is the lack of mutual coherence between the various radar subbands
在數據層,首先探索了對多個配置在同一地方的不同頻帶雷達測得的目標頻率響應進行融合,以獲取更寬頻帶目標頻率響應的方法。Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results
這種方法的積分方程的積分核里含有復雜的微積分運算,為了簡化計算,本文在推廣的海倫積分方程的基礎上,對方程進行了簡化,推導了nakano方程,並以平面阿基米德螺旋天線,平面等角螺旋天線,軸向模圓柱螺旋天線,具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例,用矩量法求解了天線上的電流分佈,研究了螺旋天線輻射的寬頻帶特性,所得的結果均與參考文獻吻合很好。With the rapid development of the semiconductor technology, large of the vacuum electronic device has replaced by the semiconductor element from the middle period of the last century. however, the vacuum electronic device owns tremendous prepotency in the exceed - high frequency and wide frequency band and high power field, especially in the exceed - high power field. the complexion won ’ t be changed for a long period
自上世紀中後期開始,隨著半導體技術的飛速發展,許多真空電子器件逐步被半導體器件取代,但是,在超高頻、寬頻帶、大功率,尤其是超大功率領域,真空電子器件在技術和經濟方面至今仍擁有巨大的優勢,而且在今後相當長的時期內,這種局面也不會改變。From the middle - later period of the last century, with the rapid development of the semiconductor technology, large of the vacuum electronic device was replaced by the semiconductor element. however, the vacuum electronic device owns tremendous prepotency in the exceed - high frequency and high power field. this complexion won ’ t be changed for a long period
自上世紀中後期開始,隨著半導體技術的飛速發展,許多真空電子器件逐步被其取代,但是,在超高頻、寬頻帶、大功率,尤其是超大功率領域,真空電子器件在技術和經濟方面至今仍擁有巨大的優勢,而且在今後相當長的時期內,這種局面也不會改變。Study of ablation radome material for broad - band supersonic missile
高速寬頻帶導彈天線罩的耐燒蝕透波材料研究Dynamic weighted fit method in step calibration for ultra - broadband and very - broadband seismometer
超寬與甚寬頻帶地震計階躍標定的加權動態擬合法Utilizing the benefits of varactor and bowtie and fractal structures, some interesting characteristics of these elements were found
該結構單元為設計寬頻帶、動態方向圖掃描的陣列反射天線奠定了基礎。( 4 ) and co - design methods of ic component structure and foundry process structure designs has been presented in this thesis
( 3 )達到降低高頻集成電路器件的高頻損耗,提高器件q值以及擴寬器件應用頻帶的目的。Basing on other researchers ’ work, this paper has put forward a novel type of icc ( induced current cancellation ) shielding layer for rfic / mmic performance improvement, to reduce high frequency loss, increase q value, and expand its application frequency range. and present how to realize rfic / mmic components such as i / o pad, inductors, baluns and so on by applying icc shielding layer structures. furthermore co - design methods of ic component structure and foundry process structure designs has been presented in this thesis
在無線通信技術對cmos射頻/微波集成電路需求的大背景下,本論文提出了用於高頻集成電路( rfic / mmic )器件的各類新型icc ( inducedcurrentcancellation ,感應電流相消)屏蔽工藝結構,由此設計製造的ic部件解決了傳統半導體工藝無法實現射頻/微波集成電路的難題,以達到降低高頻集成電路器件的高頻損耗,提高器件q值以及擴寬器件應用頻帶的目的。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。Time service is a important content in seismic observation. measure precision of time - synchronization effects the quality of recording
本文給出了一種應用在寬頻帶地震記錄儀中基於gps授時信號的時間同步技術。The exhaust gas spews out of the exhaust valve and enters into the muffler along the exhaust manifold before draining into the atmosphere from the tail pipe. this process yields wide band exhaust noise
發動機廢氣從排氣門高速沖出,沿著排氣歧管進入消聲器,最後從尾管排入大氣,在這一過程中產生了寬頻帶的排氣噪聲。In this paper, for 2 ~ 2000mhz broadband rf front - end, using subsection processing fixed intermediate frequency superheterodyne architecture, and combining with the actual component ’ s level, a broadband rf front - end system simulation platform is presented, which provided the universal, standardization, and modularization of transmitter and receiver
本文針對頻率范圍2 2000mhz的寬帶射頻前端,採用分段處理的固定中頻超外差結構,並結合目前的器件水平,建立了一個通用化、標準化、模塊化的寬頻帶射頻前端發射機和接收機系統模擬平臺。Narrowband watermarking information is spread into wideband pseudo - random code before being embedded by modifying the scale of the distance between vertexes in two - dimensional engineering graphics
該方案先將待嵌入的窄頻帶的浮水印信號擴頻為寬頻帶的偽隨機序列,然後再以偽隨機序列為依據對二維工程圖中直線實體的長度作相應的修改。This paper will first discuss bandwidth enhancement in general, and then research the multiple resonance method to enhance the bandwidth
在討論微帶天線頻帶展寬的基礎上,研究多諧振方式展寬頻帶的方法。The usual method to broaden the bandwidth of the pin diode switch is combining the pin diodes with stub filters : when under reverse bias, the didoe is part of the filter, the transmission bandwidth is broadened ; when under forward bias, the structure of the filter is destroyed, signal is isolated
Pin二極體開關展寬頻帶的方法一般是把pin二極體結合進短截線濾波器,使pin二極體在反向偏置時作為濾波器的組成部分,以展寬開關在傳輸狀態下的頻帶;當二極體正向偏置的時候,濾波器的結構被破壞,起到隔離的作用。This article did research that what kind of method was adopted could get high resolution and wide frequency seismic data, and improve the level of oil and gas seismic exploration area basis on analysis and contrast the existence data and working experience in complex mountain
本文根據在這些地區的施工經驗和資料的分析對比,研究在復雜山區地震資料的採集及處理各環節上採用什麼樣的方法、手段和措施才能得到高信噪比、寬頻帶的地震資料,提高山地油氣地震勘探的水平。In data communications, a high bandwidth channel
數據通信技術中,一種寬頻帶的通道。Twt plays an important role as high power and wide band microwave generator and microwave amplifier
行波管作為高功率寬頻帶的微波源和重要的微波信號放大器在相關行業中具有不可替代的地位。分享友人