雷達發射波 的英文怎麼說

中文拼音 [léidáfāshèbō]
雷達發射波 英文
radar transmitting wave
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 達 : Ⅰ動詞1 （暢通） extend 2 （達到） reach; attain; amount to 3 （通曉; 明白） understand thoroughly...
  • 發 : 名詞（頭發） hair
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  1. Through measuring the value of infrared radiation when the complex decoy is burning, it is concluded that the complex decoy ' s energy of infrared radiation is much more than the substrate ' s. through researching the performance of microwave radar ' s transmission and refection within the band of 3mm and 8mm, it is proved that the interference with radar is feasible

    在復合誘餌劑的性能測試方面：對制備出的復合誘餌劑燃燒時的紅外輻射展開研究，發現了復合誘餌劑的紅外輻射能量比基片的紅外輻射能量有很大的增加；開展了對3mm 、 8mm波段毫米波雷達的透射與反射性能試驗，證明了該誘餌劑干擾雷達波是可行的。
  2. Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail

    針對一維單脈沖雷達體制，分析了地形目標回波特性；建立了地形跟隨雷達空地測距的幾何關系；利用雷達收發信號，導出了地形跟隨雷達和差接收通道的回波信號表達式，進行了波形模擬，得到了地形跟隨雷達的地面散射產生回波在時域中的特性；根據和差回波特性，闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用，並給出了真實雷達對外輻射試驗的結果，驗證了文中的模擬。
  3. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。
  4. It uses modulated waveforms and directive antennas to transmit electromagnetic energy and extract target information from echoes

    雷達使用調制的波形和定向天線發射電磁能量，並從回波中提取目標信息。
  5. The phase shifter, as a important component in transmit / receive ( t / r ) module of phased array radar, steer the electronic beam for inertialess scanning

    移相器是相控陣雷達發射/接收（ t / r ）組件的重要組成部分，用來控制雷達波束的無慣性電掃描。
  6. When radio waves pass through half of the first jump distance, the effects of meteor trails scattering on a radar system are investigated

    計算了電波經電離層跳躍前進的過程中，流星余跡散射對後向散射超視距雷達系統性能如作用距離和發現概率等的影響。
  7. Anti - radiation missile ( arm ) is an air - to - air or air - to - ground missile that can seek, track and destroy radar systems by making use of electromagnetic wave of the radar beaming, which is also called anti - radar missile

    反輻射導彈（ anti - radiation - missile ， arm ）是一種利用雷達輻射源發射的電磁波，發現、跟蹤並摧毀雷達系統的空空、空地機載導彈，也稱為反雷達導彈。
  8. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
  9. Abstract : the effects of airfoil geometric parameters on wing " s spacial and polarized scattering characteristics have been systematically revealed. the results of the study indicated that the calculating value of diffraction from trailing edge by using the formula of the straight wedge is very far from experimental results for vertical polarization, and the contribution of thickness of the trailing edge to scattering must be considered in the calculation. the scattering peak of leading edge depends only on radius of airfoil for horizontal polarization. but for vertical polarization, it depends on maximum thickness and the location of maximum thickness. engineering formulas for evaluating all scattering peaks were given in the paper. it is important for the design of low - rcs wing

    文摘:系統地揭示了翼形幾何參數對機翼的空間散射特性、極化散射特性的影響規律.研究發現，在垂直極化狀態下用理論尖劈公式計算機翼后緣繞射的計算結果與實驗結果相差甚遠.提出在垂直極化狀態下機翼后緣繞射的計算必須將后緣厚度考慮在內的見解.對於水平極化，前緣散射波峰只與前緣半徑有關；而對於垂直極化，前緣散射波峰與翼形最大厚度以及最大厚度位置有關.給出前後緣散射波峰的工程估算公式，為低雷達散射截面（ rcs ）機翼設計提供依據
  10. The paper expatiates on the scheme and design difficulties of high power millimeter - wave transmitter which use new type high power millimeter - wave gyrotron

    摘要闡述了利用新型大功率毫米波器件迴旋管研製大功率毫米波雷達發射機的系統方案及設計難點。
  11. The reflected wave will be received by the receive antenna and transferred to digital data. we can analyze the data that saved by the computer of gpr to deduce the medium ' s property, situation, location and so on. being a kind of nondestructive, untouched method, it has many advantages such as nondestructive, rapidness, simpleness and high precision, so it will have wide applications in the ways of examination, control and maintenance to road quality, especially for highway

    路用探地雷達是近幾年發展起來的、應用於公路無損檢測的一項新技術，它利用超寬帶脈沖電磁波對路面結構層進行探測，當雷達發射天線發射的電磁波在路面結構層中傳播時會在介電特性突變處產生反射和透射，反射回來的波經由接收天線接收並轉化為數字信號儲存起來，通過分析探地雷達回波信號來估計路面結構層的性質、狀態和位置等特徵。
  12. Frequency diversity technique is effective in suppressing age if the frequency interval is big enough to remove off the correlation between the pulses transmitted by radar, wide - band mmw radar can satisfy the requirement but conventional microwave radar can t

    頻率分集技術抑制目標角閃爍的有效性，取決于去除脈間相關性的性能，即要求雷達發射信號必須有較大的頻率間隔，寬帶毫米波雷達正好滿足了這一常規微波雷達不能滿足的要求。
  13. At last, in the circumstances of a wide - band radar is used for target detection, the length of received signal is much longer than that of the transmitted pulse signal. because the traditional matched filter collects only a small part of the energy of received signal, it is not good for detection. the generalized matched filter is obtained by improving the traditional matched filter and can collect all energy of received signal, which is good for detection

    最後，在寬帶條件下，雷達發射脈沖信號，雷達的目標回波的時間長度要遠遠大於發射信號的時間長度，傳統的匹配濾波只能收集一部分回波信號的能量，這對于檢測電磁散射比較弱的目標是不利的，而廣義匹配濾波對傳統的匹配濾波進行改進，可以將目標回波的全部能量收集起來以提高檢測性能。
  14. Firstly, this paper summarizes modern weaponry stealth technology at home and abroad, and lays special emphasis on analyzing stealth problem of cruise missile ’ s guidance head cover, aerocraft radar canopy and other privileged sites. secondly it makes a research on related theories of transparent metallic mesh that applied to missile ’ s guidance head cover and aerocraft radar canopy, and deduces relational expression between transparent metallic mesh structural parameters and radar wave - shielding efficiency, infrared transmitting. we use laser direct writing technique to fabricate a metallic mesh ( dimension : 70mm 70mm ; line width : 5 m ; period : 350 m ) on glass surface, then do experiment to test radar wave - shielding of metallic mesh via radar transmitting and receiving device

    本文首先綜述了國內外現代武器系統隱身技術方法;重點對巡航導彈導引頭罩和飛機雷達艙罩等特殊部位的隱身問題進行了研究，研究了金屬網柵用於導彈頭罩和飛機雷達艙罩隱身的相關理論，推導了金屬網柵結構參數對雷達波屏蔽效率和透紅外關系式;用激光直寫工藝，在玻璃表面上製作了一塊面積為70mm 70mm ，線寬為5 m ，線周期為350 m的金屬網柵;在實驗室里用雷達發射和接收裝置測試了網柵對雷達波的屏蔽實驗;認為利用金屬網柵技術對雷達波具有一定的屏蔽作用，而且不影響精確制導的紅外線高效透過。
  15. It is one of advanced technologies used in modern radar that applying adaptive algorithms to radiation pattern of an adaptive array in order to control nulls of the beam pattern and to suppress interferential signals

    在自適應天線陣的發射模式中應用自適應演算法，控制發射波束的零點位置，以達到抑制干擾信號的目的，是現代雷達採用的先進技術之一。
  16. The complex resonance frequency underlying in late - time scattering components of a conducting target is independent of waveform and polarization of the incident wave, as well as the direction of the target relative to radar. it is a unique aspect independent quantity so far used to characterize target physical structure and component

    目標的后時響應中包含的自然諧振頻率成分（極點） ，不依賴于雷達發射電磁波波形、和其極化形式，與目標對雷達的取向無關，具有目標姿態不敏感性。
  17. The processing of the field gpr profile in the limestone region with this program demonstrates that coherent enhancement processing of the gpr profile can effectively improve the continuation of the events reflected from the same interface and contribute to tracing the reflecting interface without the distortion of the event form

    對實測雷達剖面進行處理的結果表明：雷達記錄道相干加強處理能有效改善來自同一界面的雷達反射波同相軸的連續性，有利於反射界面的追蹤，同時不會引起同相軸的形態發生畸變。
  18. According to the seismic convolution model, a kind of matched filters in time - scale domain is designed for echo signal detection of ground penetrating radar ( gpr ) and implemented in this paper, which is applied to detect the location and amplitude of single reflection wavelet in receiving signal through continuous wavelet transform

    摘要根據地震褶積模型，設計並實現了應用於探地雷達回波信號檢測的時間尺度域匹配濾波器，利用小波變換的時間定位性和尺度伸縮性，檢測出雷達接收信號中單個反射子波的位置與強弱信息，利用已知的雷達發射子波模型還原回波信號，達到了濾除噪聲、最佳接收的目的。
  19. Besides, the technique of self - transmitting and self - receiving monostatic planar near - field scattering measurements is studied in the thesis based on pws and po

    本文還基於平面波譜理論和物理光學法，對雷達散射截面（ rcs ）的「單發單收」測量技術進行了研究，該方法大大縮短了測量時間。
  20. Based on the uwb radar system, the emitting waveform design and signature waveform detection are discussed respectively in this paper to realize the detection and discrimination of targets

    本文在超寬帶雷達體制下分別從發射波形設計和特徵波形檢測兩個角度來實現目標的檢測和識別。
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