等距離脈沖 的英文怎麼說
中文拼音 [děngjùlímàichōng]
等距離脈沖
英文
equidistant pulse- 等 : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
- 距 : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
- 離 : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
- 脈 : 脈名詞1. (動脈和靜脈的統稱) arteries and veins2. (脈搏的簡稱) pulse 3. (像血管的組織; 連貫成系統的東西) vein
- 距離 : 1 (相隔的長度) distance; range; gap; space; spacing; separation 2 (相距) be apart from; be aw...
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Pulse compression technique and large timeband product signals such as linear frequency modulation signals, nolinear frequency modulation signals, phase coded signals and so on are widely used in modern radar systems to improve the resolving power both in range and in speed domain
現代雷達為了提高雷達作用距離和速度分辨力、距離分辨力,廣泛採用了脈沖壓縮技術及大時寬帶脈壓信號如:線形調頻、非線形調頻、相位編碼信號等。Numerical examples show that, pulse deformation and broadening, spectrum redshifting, narrowing and distortion take place with increasing diffraction angle in the near field, and the pulse form changes with propagation distance in the near field, but is preserved in the far field
數值計算例說明在近場隨衍射角的增大會出現脈沖變形、加寬、譜紅移、變形、變窄等特性,脈沖形狀在近場隨傳輸距離變化而變化,但在遠場保持不變。First, this paper research and analyze the feature of signal of pulse doppler radar, and the mathematic model of radar is constructed. the several interference methods that narrow - band suppressing interference, range deception interference and velocity deception interference are discussed. and interference ability is evaluated and simulated
研究和分析脈沖多普勒雷達信號特徵,建立了該種雷達的數學模型,並討論對脈沖多普勒雷達的窄帶噪聲壓制式干擾、距離欺騙干擾、速度欺騙干擾等幾種干擾樣式,並進行干擾性能評估和模擬研究。For the self - magnetic field mid with relatively simple structure, the stability of self - magnetic field generated by electron flow is obtained by adjusting the diode gap and the delay time of bipolar pulse. under the combined effect of self - magnetic field and electrical field in the diode, stable and dense anode plasma was produced
對于具有簡化結構優點的自磁絕緣離子二極體,通過調節陰陽極間距保證電子流造成的自磁場穩定形成,同時控制合適的雙極脈沖延遲時間,電磁場共同作用形成了穩定的稠密陽極等離子體。Pulse compression technique is widely used in modern radar systems. large timeband product signals such as linear frequency modulation signals ( lfm ), nonlinear frequency modulation signals ( nlfm ), phase coded signals and so on are used in pulse compression technique to improve the resolution in range domain
現代雷達系統廣泛採用脈沖壓縮技術,在確保雷達作用距離和速度分辨力的前提下,採用大時帶積脈沖壓縮信號:如線性調頻( lfm ) 、非線性調頻( nlfm )和相位編碼信號等,提高距離分辨力。Ultrashort intense laser pulse propagation in low - density plasmas and air xiao yuan, doctor of philosophy, 2002 dissertation advised by : lu baida, professor of physics the study of ultrashort intense pulse laser beams in low - density plasmas and air is relevant to a wide range modern application
超短超強脈沖激光在低密度等離子體和空氣中的非線性傳輸是當今強激光與物質相互作用研究的一個重要課題。本論文闡述了超短超強激光在低密度等離子體和空氣中的長距離自聚焦和自導引效應。Firstly, the principle of high resolution sar and theoretical imaging model were concisely introduced. pulse compression for line frequency modulation pulse signal, resolution of range direction and azimuth direction, and doppler history were discussed subsequently. in accordance with sar signal processing, range immigration was also involved
本文首先分析了合成孔徑雷達高分辯力成像機理和sar成像理論模型,討論了線性調頻脈沖信號的匹配濾波(脈沖壓縮) 、 sar距離特性、方位特性和多普勒歷史,同時針對sar成像信號處理,分析了成像處理的基本原理和成像處理中的距離遷移校正等關鍵問題。The laser beam spot evolution and electron density in the guiding range are evaluated with the burn pattern and the measured conductivity. the above results will be useful in ultrashort laser pulse amplification and future research in ultrashort intense laser propagation in plasmas and ionizing gases
以上研究結果對于超短脈沖激光放大技術研究以及超短超強脈沖激光在低密度等離子體和空氣中長距離傳輸和聚焦研究等具有重要的實用參考價值。In this paper, high resolution range steady imaging under the conical angle measurement, angle glint suppression under conical angle measurement, target recognition under momopulse angle measurement are studied
本文主要研究了圓錐掃描測角體制下距離維高分辨穩定成像,圓錐掃描測角體制下角閃爍的抑制,單脈沖測角體制下目標識別等課題。分享友人