radar range resolution 中文意思是什麼

radar range resolution 解釋
雷達距離分辨力
  • radar : n 〈美國〉【無線電】 〈radio detecting and ranging 之略〉 雷達，無線電探測器 （＝〈英國〉 radiolo...
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  • resolution : n 1 決心，果斷；堅定，剛毅。2 （議會等的）決定，決議（案）；【法律】〈罕用語〉判決；（疑問等的）...
  1. Compared with the low range resolution ( lrr ), high range resolution ( hrr ) radar can supply more structure information of targets. it is one of the most important development directions in modern radar. hrr radar has much extensive application prospects in targets detection, targets imaging, targets identification and so on

    高距離分辨雷達較低分辨雷達能提供更多的目標結構信息，是現代軍用雷達裝備的重要發展方向之一，在目標檢測、目標成像和目標識別等方面有極其廣闊的應用前景。
  2. Because of the presence of the first - order sea echoes with dominant amplitude, the doppler resolution technique which based on the range - velocity transformation is needed to extract the targets information in hf radar

    高頻雷達工作在擁擠的短波波段，由於絕對占優的一階海浪回波的存在，必須採用基於距離?速度譜變換的多普勒頻率分辨技術來處理雜波，以提取目標信息。
  3. With modern weapon and modern wingmanship being developed, the higher performance of the radar, such as action range, resolution, measure precision and so on, are required

    隨著現代武器和現代飛行技術的發展，對雷達的作用距離、分辨力和測量精度等性能指標提出了越來越高的要求。
  4. To improve this ability, a higher cross - range resolution is needed. an inverse synthetic aperture radar ( isar ) achieves high resolution in the cross - range dimension by taking advantage of the motion between radar and targets to synthesize the effect of a larger antenna aperture

    逆合成孔徑雷達（ inversesyntheticapertureradar ，簡稱isar ）信號處理對接收到的運動目標的回波信號進行相干處理，等價成一個大口徑天線，很大程度上提高了方位向距離分辨力。
  5. Because of the limited cross - range resolution, high frequency ( hf ) over - the - horizon ( oth ) radar has the poor ability to determine the number of group targets and identify the large warship such as aircraft carrier in engineering applications

    我國的高頻雷達已進入工程化應用階段，但由於受分辨能力的限制，在群組目標的個數分辨及大型船隻的識別等方面仍有不足之處。
  6. 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。
  7. Ftt makes the frequency sampled at a same frequency interval on unit circle, and the frequency interval limits the practical range - precision of the radar, and makes range precision at an equivalent level with range - resolution

    由於fft的實質是頻率在單位圓上的等間隔采樣，其采樣間隔限制了雷達的實際測距精度，使得其測距精度與其距離分辨力處于同一量級。
  8. Take integrity of object information into condition, a two - dimension signal processing method which can make a measurement of the target ’ s speed as well as the range is brought forward at the basis of waveform parameter design. and simulation in the background of hf multi - object with noise is taken. a comparison of signal properties, processing and antinoise detection performance is taken between mcpc and another two high range resolution radar signals : single carrier pulse coded signal and step frequency pulse coded signal

    考慮到目標信息提取的相對完整性，以高頻雷達為背景，在對多載波相位編碼脈沖串信號參數設計的基礎上，推導了三種多載頻相位編碼脈沖串信號的距離速度二維處理過程並相應的對多目標噪聲環境進行了模擬;將多載波相位編碼信號與另外兩種距離高分辨信號:單載頻相位編碼信號和相位編碼階梯跳頻信號，在信號特性、處理過程和抗噪聲特性方面進行了對比;本文從理論上為多載波相位編碼信號的波形設計和分析、信號的處理打下基礎。
  9. Moreover, the pulse compression radar has been widely used in practice because of its far detection range and good range resolution

    此外，為了解決雷達作用距離和距離分辨力之間的矛盾，脈沖壓縮機技術在現代雷達系統中被廣泛採用。
  10. The improvement of radar range - resolution not only facilitates detection of targets in high clutter, but also makes it possible to image and recognize targets

    提高雷達距離分辨力不但有利於在強雜波背景下的目標檢測，而且使目標成像成為可能。
  11. Pulse compression effectively solves the contradiction between the range resolution and the average power of the radar, and is widely applied in modern radars

    而脈沖壓縮有效地解決了雷達距離分辨力與平均功率之間的矛盾，並在現代雷達中廣泛應用。
  12. The development of high range resolution radar has given strong support to ratr

    高距離解析度雷達技術的發展為ratr的研究提供了強有力的技術支持。
  13. The high range resolution radar echo of plane target is denoted as one dimension range profile

    飛機目標的高距離解析度雷達回波呈現為一維距離像。
  14. This thesis mainly studies the problem of automatic target recognition ( atr ) based on high range resolution radar profiles

    本文主要研究了基於高距離解析度雷達像的自動目標識別問題。
  15. In order to obtain high range resolution, the chirp signal is used as subpulse to form stepped frequency modulated radar signal

    摘要為了獲得高距離解析度，將線性調頻信號作為子脈沖構成調頻步進雷達信號。
  16. Ultra - wide band ( uwb ) radar is paid more attention to due to its great capabilities in high range resolution, robust anti - jamming and low probability of interception

    超寬帶雷達因其高距離解析度、強抗干擾能力、低截獲率等優異的性能受到越來越多的關注。
  17. The rangeprofile can be formed by high - range resolution radar ( hrr ). the rangeprofiles of the targets contain more information for recognition than the radar cross section ( rcs )

    使用高距離解析度雷達可獲得目標的一維距離像，一維距離像包含了更多的可用於目標識別的信息。
  18. Because of the advantages of no range blind area, high range resolution, low signal power and simple structure, lfmcw ( linear frequency modulation continuous wave ) radar attracted more and more attention recently

    線性調頻連續波（ lfmcw ）雷達是一種通過對連續波進行頻率調制來獲得距離與速度信息的雷達體制系統。由於其具有無距離盲區、高距離解析度、低發射功率、結構簡單，便於集成化等優點，適合用於液位測量系統。
  19. Two common - used synthetic aperture radar imaging algorithms, range - doppler algorithm and chirp - scaling algorithm, have been analyzed and tested using compute simulation and real synthetic aperture radar data. one key issue of the synthetic aperture radar high resolution imaging is how to obtain sar image of high geometrical resolution

    在此基礎上，討論了合成孔徑雷達距離多普勒成像演算法以及chirp - scaling成像演算法，分析了各自的特點，對兩種成像演算法進行了計算機模擬實驗以及實際數據實驗驗證。
  20. A important conclusion is verified from these analysis that although the azimuth resolution of sar radar is theoretically not connected with parameters such as radar range and center frequency, in fact, on the condition of same resolution, when the range becomes further and center frequency become lower, the requirement for the radar power gain production, signal processing and precision of ins will be higher, therefore the imaging will become more difficult

    同時也證明了一個重要的結論：從理論上講，合成孔徑成像的方位解析度與作用距離、雷達工作頻率等參數無關，但實際上，在解析度保持不變的情況下，隨著作用距離的提高，工作頻率的下降，對雷達的功率孔徑積、信號處理以及慣導精度的要求會越來越高，從而成像也會變得越來越困難。
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