高能脈沖雷射 的英文怎麼說

中文拼音 [gāonéngmàichōngléishè]
高能脈沖雷射 英文
high-energy pulse laser (hepl)
  • : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
  • : 能名詞(姓氏) a surname
  • : 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
  • : 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
  • : 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) ...
  • 高能 : high energy高能等離子體 energetic plasma; 高能點火 [航空] high energy ignition; 高能電池(組) hi...
  • 雷射 : laser pointer
  1. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上,本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型,並對它們進行了分析和模擬;第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件;第四章針對傳統擴展卡爾曼( ekf )方法的缺點,提出了一種修正協方差的擴展卡爾曼濾波( mvefk )方法,並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性模擬比較;第五章通過引入達機動目標跟蹤方法和模型,提出了利用角度及其變化率對機動輻源跟蹤的多級噪聲自適應方法和imm方法;第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究,提出了幾種精度測量序列多普勒頻率變化率的方法。
  2. 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,達發信號,達的目標回波的時間長度要遠遠大於發信號的時間長度,傳統的匹配濾波只收集一部分回波信號的量,這對于檢測電磁散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量收集起來以提檢測性
  3. Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain

    通過大量的理論分析和模擬實驗,得到了一批具有一定價值的結論:從信號處理的角度出發,對于式干擾,夠運用時域滑動窗口積累的方法去掉,並且通過預測插值得到較好的恢復;對于斯白噪聲干擾,在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾;對于頻噪聲,通過平均距離頻頻法和頻域陷波的方法可以去掉;從改變合成孔徑達系統角度出發,類似雙基地夠避免各種干擾,對發信號進行調幅,調相以及改變調頻斜率都是較好的抗干擾方法。
  4. Considering that : ( 1 ) radar can achieve its basic application of collision avoidance and warning with the only function of ranging ; ( 2 ) under high speed conditions, radar should have lager effective range than that under slow speed, we designed a new easily realizable automotive anticollision radar, which employs centimeter wave and square pulse amplitude modulation

    考慮到: ( 1 )核心的測距功實現以後,達已經夠完成基本的防撞預警; ( 2 )在汽車速運行的情況下,防撞達的最小可測距范圍和最大作用距離應比低速狀態下大。本文採用了技術成熟,易於工程實現的厘米波達,以單波束輻的方式測距。
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