寬頻帶 的英文怎麼說
中文拼音 [kuānbīndài]
寬頻帶
英文
broadband寬頻帶開關管 broad band tr tube; 寬頻帶器件 wide frequency band device; 寬頻帶示波器 wide band oscilloscope tube; 寬頻帶振蕩器 wide band oscillate-
Broad band seismic interpretative method
寬頻帶地震解釋方法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Total radiation instruments employ some broad spectral band sensors.
全輻射儀器要使用某些寬頻帶傳感器。Duo to the intrinsic characteristics of the gaas material, serai - insulating ( si ) gaas photoconductive semiconductor switches ( pcss " s ) have more obvious advantages in the performance of both high power and ultra - fast switching than those pcss " s made of other materials and then can be widely used in ultrahigh speed electronics, field of high power microwave generation and pulse forming ( pulse sources of high power ultra - fast electromagnetism, ultra - wide - band microwave generator )
半絕緣gaas光電導開關（ photoconductivesemiconductorswitches簡稱pcss ' s ）具有兼備寬頻帶和高功率容量特性，使其在超高速電子學和大功率脈沖產生與整形技術領域（大功率亞納秒脈沖源、超寬帶射頻發生器等）具有廣泛應用前景。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。Information technology - telecommunications and information exchange between systems - broadband private integrated services network - inter - exchange signalling protocol - signalling atm adaptation layer
信息技術.系統間通信和信息交換.寬頻帶私人綜合服務網.內交換信號協議.信號atm適應層Broad band amplifier
寬頻帶放大器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 antenna system has a good characteristic with wide symmetrical beamwidth, broad impedance bandwidth and compact structure
整個線性漸變槽天線系統具有對稱波瓣、寬頻帶、寬主瓣和結構緊湊等特點。According to ctbto, ims array comprises 9 vertical short peroid ( sp ) seismometers and a broad - band seismometer
Ctbto規定ims臺陣應配置9臺短周期垂直向地震儀加一臺寬頻帶地震儀。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。A novel broadband and high - gain microstrip reflect array antenna with variable polarization
一種新型寬頻帶高增益的變極化微帶反射陣天線分享友人