wide-band range 中文意思是什麼
wide-band range
解釋
寬波段無線電指向標-
The radial motion will not only bring the range ambulation and windage to the one - dimension range - profile, but also bring the aberrance and blur produced on given condition that radar signal which is with large product of wide - time and wide - band
對于大時寬帶寬積信號，目標高速運動不僅會造成目標一維距離像的距離走動和距離偏差，還會造成畸變和模糊。 -
The channelized digital receiver based on srd is the electronic equipment, which can be used in communication and military affairs, because of its excellence on wide band frequency coverage, digital processing, software programming, high dynamic range, receiving signal with all probability, simultaneous signal detection and so on
基於軟體無線電思想的通道化數字接收機是一種即可用在通信領域也可用在軍事領域的電子設備，具有大帶寬、數字化、軟體化、大動態范圍、全概率接收、多信號同時處理等優點。 -
In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method
計算結果表明，從相對散射強度、同一方向上不同粒子散射的可區分程度來看，在散射式能見度探測儀器中，工作波長介於0 . 86 m 2 m ，探測角度選取前向25度40度時，探測的結果將會是比較理想的。第三部分中，使用超橢球方程來統一描述各種非球形粒子的形狀，然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外，在本文中還針對球形粒子的散射場提供了一種三維可視化方法，使對散射場強度的空間分佈的理解更加簡單，直觀。 -
Today, liquid crystal, a new functional material, has been applied more and more widely. on the side of display, owing to stable frarne, absolute environmental protecting, save electric energy and no tire for user, liquid crystal display keeps ahead among the range of display. with the developing of the technology of liquid crystsl, lcd will must substitute for crt and become the chief in market. in additin, liquid crystsl light filers which have been used in optic communicatins and light information handling, emply th e technical of combining the birefringence of liquid crystsl and fabry - petrot - type cavity. they manifest a series of merit, such as narrow band wide, deterioration low, wide tuning domain, simple structure and low cost, so liquid crystal light filter draw attention of many country
現在，液晶作為一種新型功能材料越來越得到廣泛的應用，在電子顯示裝置中，液晶顯示器以其畫面平穩、真正安全環保、省電和使用者不易疲勞等優點領先於顯示器的行列中。隨著液晶技術的發展，液晶顯示器將取代crt顯示器逐步成為未來市場的主流。此外，應用於光通信和光信息處理中的電調諧液晶濾光片，採用液晶材料的雙折射和電光效應與傳統f - p腔相結合，表現出窄帶寬、低損耗、調諧范圍寬、驅動電壓低、結構簡單、低成本等一系列優點，而日益受到各國研究部門的關注。 -
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。 -
Ultra - wide band ( uwb ) radar is paid more attention to due to its great capabilities in high range resolution, robust anti - jamming and low probability of interception
超寬帶雷達因其高距離解析度、強抗干擾能力、低截獲率等優異的性能受到越來越多的關注。 -
Wide - band signal plays impotant part in improving the resolution in range domain, so the design of wide - band signal becomes an impotant technique during the modern radar development
寬帶信號在提高雷達距離解析度方面發揮著關鍵的作用，寬帶信號源的設計成為現代雷達設計中的一項重要技術。 -
By means of using the electronically tuned preselector and multiple conversion technology, a wide band receiver with wide dynamic range is basically achieved. the scheme is innovative and original not only in the scheme itself but also in the technology of some sub - circuits
課題採用電調選頻和多次混頻的方案基本實現了大動態寬頻帶接收，該方案無論是方案本身還是方案中所涉及到的技術都具有一定的創新與獨到之處。 -
In the third chapter, a methodologies to realize second - order band - pass filter with which center frequency tuned in a wide range using mcdi ( multiple output current - mode differential integrator ), these two kinds of mcdi are composed of pmos and nmos input transistors respectively, lastly we compare these two integrators " merits and disadvantages
第三章：提出了輸入級分別為pmos管、 nmos管的多輸出端電流模式全差分積分器，並由此構成了中心頻率連續可調的二階帶通濾波器，同時比較了二者的優缺點。 -
It is urgent to research and develop new reconnaissance receiver with the properties of wide band, high sensibility, wide dynamic range and accuracy signal parameter estimation
為了偵察超寬帶雷達信號，迫切需要研製帶寬大、靈敏度高、動態范圍大、參數估計精度高的雷達偵察接收機。 -
Chapter four briefly researches the principle of range migration algorithm. the relation and difference between frequency scaling algorithm and range migration algorithm are studied carefully. through the point simulation under ultra wide - band system parameters, we compare their imaging performances
第四章簡要介紹了距離徙動演算法原理，著重分析了頻率scaling演算法和距離徙動演算法之間的聯系及區別，並通過超寬帶（ uwb ）系統參數下的點目標模擬比較了它們的性能。 -
From the experimental results, we studied the relationship between the diameter of fiber, the composition of s s and the impacts upon the electromagnetic parameter of fibers. get following conclusions : both the complex permeability and the complex permittivity of ss fibers decreased with the increase of diameter in some region, the complex permittivity of 304 ss fibers, 2 m in diameter, could be up to 2. 5 at the 2 ghz, the 302 ss fibers had better frequency dispersion properties than others, agreed with the requirements of the wide - band radar absorbing material in the range of 2ghz ~ 12ghz
西安建築科技大學碩士學位論文討論了影響不銀矜岡纖維電磁參數的幾個因素，實驗結果出發研究了纖維直徑、成分對纖維電磁參數的影響，得到以下結論:不鉀練岡纖維的微波磁導率隨纖維直徑的減小而增大; 2微米的304不銹鋼纖維的復數磁導率p 』 『在zgi ]吃處達到2 . 5 ; 302不韌矜岡纖維電磁勝能明顯優于其它兩種，且頻譜特性在2 ~ 1zghz范圍內符合對吸收劑頻譜特性的要求。 -
Specialties : the range of center frequency it can achieve is bigger than one - piece filter ; at the time it has the features of wide pass - band, low insertion loss and high restraint outside the band
特點：可實現的中心頻率范圍較單片濾波器寬，通帶寬度范圍大，插入損耗小，帶外抑制高。 -
The main achievements of the dissertation are included : ( 1 ) the limitations of the traditional channelized reconnaissance receivers indicate that it cannot be used to receive the ultra - wide radar signal. it is pointed that the ultra - wide receiver must satisfy ultra wide monitoring band, high sensibility, wide dynamic range and almost real - time response
論文主要工作如下: （ 1 ）分析了多種傳統通道化接收機的結構性能，及其在超寬帶信號接收中的局限性，指出超寬帶通道化接收機必須滿足實時性、高靈敏度和大動態范圍等性能。 -
Zinc oxide ( zno ) is a wide - band gap semiconductor that possesses excellent optical and electronic properties, and as a result it stimulates a broad range of researching interest. it shows great promising applications in ultraviolet lasers, solar cells, sensors and so on
寬禁帶半導體zno材料由於具有優異的光電性能引起了人們廣泛的興趣，其在紫外激光器、太陽能電池、傳感器等方面有著廣泛的應用前景。 -
Based on wide dynamic range and high sensitivity technology, wideband digital electronic warfare ( ew ) receiver is able to have wide monitoring band, high sensitivity, high intercept probability, wide dynamic range, and the ability of the multi - signal processing at one time. it can scout many kinds of signals, such as radar and communication signals
建立在大動態高靈敏度接收技術之上的寬帶數字ew偵察接收機，要求能夠實現寬的輸入帶寬、高的靈敏度和解析度、大的動態范圍、採用數字化處理和具有多信號處理能力，完成對雷達、通信等各類信號的偵察工作。 -
Because of its excellent electro - optic effect, very short electro - optical response time, and wide transparent wavelength range, linbo _ 3 material meet the demands of low - loss, low drive voltage, high - speed and wide - band intensity modulator
由於linbo _ 3材料具有良好的電光效應、很短的電光響應時間、較寬的透明波長范圍，因而適合於制低損耗、低電壓、高速寬帶強度調制器。
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