long-distance radar 中文意思是什麼
long-distance radar
解釋
遠程雷達-
Inverse aperture radar ( isar ) can image non - cooperative moving targets such as aircrafts, ships and celestial objects over a long distance under all weather and all day. it is of particular interest for strategic defense, anti - submarine warfare and radar astronomy
逆合成孔徑雷達（ isar ）能夠對飛機、艦艇、天體等非合作運動目標進行全天時、全天候、遠距離成像，在戰略防禦、反衛星、戰術武器以及雷達天文學中都有重要應用價值。 -
Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation
低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。 -
The result can be long distance reception of radio waves that would normally have been far beyond the radio horizon. the equations for ray tracing were given, simulating and tracing electro - magnetic wave duct propagation using spherical layered atmosphere mode, this method is very useful for analysis of radar echo distribution and confirm relation of stratification of atmosphere and ray duct propagation in the process of studying radar second product, introduce a new 3 - d interpolation method. outcome of this method can suit all kinds of density product
在雷達二次產品處理演算法中，討論了一種新的三維插值，比以往在顯示每一個雷達二次產品時，都作一次插值相比，這種方法既節省了總的機時，也提高了每個產品的顯示速度，在討論這種方法后，用幾個產品的實例，說明了這種方法是可行的，並且還討論了等值線的生成原理，在「雷達二次產品處理平臺」下，開發了visualc + +實現程序。 -
Synthetic aperture radar ( sar ) is a kind of high resolution imaging radar, which has been developed since world war ii. through it, high - resolution radar image can be obtained under all weather, day and night and long distance conditions, so it is of high value in military and civil applications
合成孔徑雷達（ sar ）是二戰以後發展起來的一種高分辨成像雷達，利用它可以全天候、全天時、遠距離地得到類似光學照相的高分辨雷達圖像，在軍事和民用方面都具有重要的應用價值。 -
Synthetic aperture radar ( sar ) is a kind of high resolution imaging radar, which has been developed since world war ii. using sar we can obtain high - resolution radar images under all weather, day and night and long distance conditions, so it is of high value in military and civil applications
=合成孔徑雷達（ sar ）是二戰以後發展起來的一種高分辨成像雷達，利用它可以全天候、全天時、遠距離地得到類似光學照相的高分辨雷達圖像，在軍事和民用方面都具有重要的應用價值。 -
Due to its merits of all weather conditions, long distance as well as wide range, imaging radar has been utilized in such fields as military reconnaissance, remote sensing and topographic mapping
成像雷達具有全天候、全天時、遠距離和寬廣觀測帶等優點，已被廣泛應用於軍事偵察、遙感測繪等領域。 -
Synthetic aperture radar ( sar ) is a kind of high resolution imaging radar, which has been developed since world war ii. high - resolution radar image can be obtained under all weather, day - and - night and long distance conditions, so it is of high value in military and civil applications
合成孔徑雷達（ sar ）是二戰以後發展起來的一種高分辨力成像雷達，它可以全天候、全天時、遠距離地得到類似光學照相的高分辨力圖像，在軍事和民用方面都具有重要的應用價值。 -
This paper discusses the possibility of using phase - coded technology in the long distance radar, which mainly faces the problem of signal sidelobe in the large dynamic range, and the problem of getting along with the phased array technology
本文討論將相位編碼雷達用於遠距離觀測雷達上的可能性，主要需考慮大動態范圍下信號旁瓣影響問題及相控陣處理融合問題。
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