目標徑向速度 的英文怎麼說
中文拼音 [mùbiāojìngxiàngsùdù]
目標徑向速度
英文
target radial speed- 目 : Ⅰ名詞1 (眼睛) eye 2 (大項中再分的小項) item 3 [生物學] (把同一綱的生物按彼此相似的特徵分為幾...
- 標 : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
- 徑 : Ⅰ名詞1 (狹窄的道路; 小路) footpath; path; track 2 (達到目的的方法) way; means 3 (直徑的簡稱...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 目標 : 1. (對象) target; objective 2. (目的) goal; aim; destination
- 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
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The summarization of the main work is as follows : + a method that can correct the migration through range cells caused by radial speed is presented by using scale transformation, and the method is extended to maneuvering target imaging. the algorithm flow, which is applicable to large - scale target whether it is uniform or maneuvering, is given. the results obtained by using simulation data and real data show that this method is effective
本文的具體內容可歸納如下幾點:分析了用尺度變換可以消除由於徑向速度引起的越距離單元走動,對isar目標進行越距離單元走動校正演算法進行了討論,並把尺度變換校正越距離單元走動后成像的方法推廣到機動目標成像,也給出適合於平穩和機動大目標的成像演算法流程,並通過模擬數據和實測數據的檢驗。The main work is given as follows : the stepped - frequency waveform synthesizing the wideband signal, the synthetic range profile ( srp ) by ifft, the range resolution of stepped - frequency waveform, the effect of the radial velocity on the srp, the radial velocity compensation, ambiguity function, waveform design and stepped frequency sar imaging and so on
包括:頻率步進波形合成超寬帶信號分析, ifft方法獲得目標一維距離像與距離解析度分析,徑向速度對目標距離像的影響、速度補償、頻率步進信號的模糊函數分析,以及頻率步進波形照射下的合成孔徑雷達成像、波形設計與系統設計。If the target has a radial acceleration, conventional 2d - fft based data processing method will lead to a doppler spread in doppler domain. the high resolution of doppler domain due to coherent integration no longer holds, which is very important in target detection of othr
常規的二維fft處理在處理機動目標時往往由於目標存在徑向加速度而會在多普勒域造成多普勒擴展,從而無法應用相干積累帶來的多普勒域的高分辨力完成對目標的檢測。Synthetic aperture radar ( sar ) has been widely used in both military affairs and civilian fields because of its high - resolution, independence of both time and weather conditions, etc. usually, sar could only be used to detect and image static targets instead of moving targets for the reason that the position drifting will make local mistake in the general sar image, which is usually caused by the velocity of the moving targets in the ground range direction, and when it comes to the target with strong scatter coefficient right in the drifting position, the moving target could not be detected at all
合成孔徑雷達( sar )由於其高解析度、全天時、全天候等優良性能,已經在軍事和民用領域得到越來越廣泛的應用。通常,合成孔徑雷達只能對靜止目標進行檢測和成像,動目標由於其徑向速度而在常規sar圖像中有一個位置偏移,使成像造成局部錯誤,而且當偏移處有強散射目標時,動目標將無法檢測。軍事上的應用也要求合成孔徑雷達能對運動目標進行有效地檢測和成像,因而運動目標檢測( mti )及其成像日益成為合成孔徑雷達領域研究的一個熱點。分享友人