long-range radar 中文意思是什麼
long-range radar
解釋
遠程雷達-
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。 -
Except with the advantages of long range early warning and anti - stealth, rending anti - radiation missiles useless, also for its inherent flexibility and mobility that enlarge warning region, high frequency ship - borne surface wave over - the - horizon radar ( hf sswothr ) has been widely used in military domain
高頻地波艦載超視距雷達具有遠距離預警、反隱身、抗反輻射導彈攻擊等方面的顯著特點。而且載艦本身的靈活性、機動性又提供了更廣闊的警戒空間，因此它在軍事上具有廣闊的應用前景。 -
In this paper. the question of compound guidance about mid - long range air - to - air missle to be considered. the main contributions are as follows : first, two midcourse guidance laws are given. that is optimally predictable pn micourse guidance, which is suitable for middle range missle, and singularly perturbed midcourse guidance. which is suitable for long range missle guidance ; then two terminal guidance laws are given. that is variable structure guidance, which is suitable for passive radar guidance. and optimal guidance which is suitable for active radar guidance ; and then the error sourses of hand - off are researched, the hand - off law is given at the time ; fmally, the midcourse guidance laws and terminal guidance laws are tested by simulation, and the whole trajectory simulation are given through hand - off law, and the results are satisfied
主要工作如下：首先研究了用於中遠程空空導彈復合制導的兩種中制導律，即用於中程導彈的最優預測比例導引中制導律和用於遠程導彈的奇異攝動中制導律，它們均有很好的中制導性能，能夠滿足中末制導的交班要求；接著研究了兩種末制導律，即用於被動雷達末制導的變結構制導律和用於主動雷達導引頭的最優末制導律，均適用於復合制導末制導段；然後分析了中末制導的交班誤差源，討論了用於復合制導的交接律；最後通過模擬，驗證了提出的中制導律和末制導律，結合提出的交接規律，在不同的情況下對中末制導段彈道進行了模擬驗證，結果證明文中提到的中末制導律能夠達到性能指標要求。 -
The no 113 ship and no 112ship are the sister ships, execute for the chimney, the shapes are much alike, both of them belonging to the luhu class, that means the type 052. both ships have been equipped with the chinese made long range searching radar, this kind of radar is the countrys latest product, is a mark of our battleships
113艦與112艦是姐妹艦，除煙囪外，外形酷似，同屬「旅滬」級，即052型，兩艦都裝有一部國產遠程海空搜索雷達，此雷達為我國最新研製產品，是我軍艦艇的一個標志。 -
The inverse synthetic aperture radar ( isar ), which can provide an all - weather, day / night capability to generate high - resolution two - dimensional images of the targets for recognition over a long range, has played a more and more important role especially in military application
逆合成孔徑雷達（ isar ）能全天時，全天候，遠距離提供運動目標的高解析度圖像，為敵我目標識別提供信息，具有重要的軍事意義。 -
Synthetic aperture radar ( sar ) imaging has the characteristic of all - weather, day / night, long range and high - resolution, and can enhance radar ' s information acquisition capability
合成孔徑雷達（ sar ）成像具有全天候、全天時、遠距離和高分辨成像的特點，可以大大提高雷達的信息獲取能力。 -
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。 -
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。 -
The existing long range primary surveillance radar at mount parker has been used for more than 20 years and is approaching the end of its operational life
目前設于柏架山的長距離一次監察雷達，已經運作了20多年，使用期快將完結。
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