方位距離線 的英文怎麼說

中文拼音 [fāngwèixiàn]
方位距離線 英文
brl bearing range line
  • : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 方位 : position; bearing; direction; points of the compass; placement
  • 離線 : off line
  1. Charted with them, and guangzhou time units was preliminarily analyzed as well. secondly, the author introduced the way and the signification of temporal position analyse with examples. thirdly, taking on - the - spot survey method as a practical tool, the author obtained data of temporal distance between each time unit at the verge of different urban districts and the central time unit of the city

    論文以廣州市為實證研究的對象,對廣州的市區范圍進行了時間單元的劃分並繪制出了時間單元圖,同時對廣州的時間單元滿意率進行了簡單的分析;接著以實例介紹了時間區分析的法和意義;然後利用實際測量法,在不同時間段測得廣州市時間中心到城建連片區各邊界點的時間,繪制出時間廓,得出廣州市城建連片區的時間形態現狀及時間形態的日變化規律。
  2. 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,很大程度上提高了分辨力。
  3. Based on the doppler effect and pulse coherence technique, synthetic aperture radar ( sar ) breaks through the azimuth resolution limitation imposed by real aperture antenna. in combination with the pulse compression technique, two - dimensional high resolution imagery to distant targets can be realized

    合成孔徑雷達( sar )利用以多普勒頻移理論和脈沖相參為基礎的合成孔徑技術,突破了實孔徑天向分辨力的限制,與脈沖壓縮技術相結合,實現了遠目標的二維高分辨成像。
  4. 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置固定,運動式一致,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性變化,通過對較短數據利用relax的時頻分析法,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法的有效性和可行。
  5. The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected

    用蒙特卡羅模擬法對中子應力衍射譜儀的設計案進行了優化研究,提出了一系列可供參考的數據:確定了單色器的置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角;討論了第二準直器的尺寸和發散,以及使用第二準直器造成的強度損失;給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率,以及多種組合情況下譜儀的解析度曲;對限束孔的尺寸、樣品遠近對強度損失和測量中的影響做了深入研究。
  6. In the application of mini - micro - robot visual perception, there is a need for fish - eye lenses for capturing wide field of view for navigation. though fish - eye lenses provide a wide field of view ( 180 ), they introduce significant distortion in images and the acquired images are quite warped, which makes conventional camera calibration algorithms no longer work well. this paper presents an accurate calibration framework for fish - eye lens ( a high distortion lens ) camera stereo vision system. the accurate calibration model is formulated with radial distortion, decentering distortion and thin prism distortion based on the fisheye deformation model. using fish - eye and non - linear camera model, the author employs levenberg - marquardt method to realize precise non - linear calibration for wide - view - scene dense depth image recovery

    魚眼鏡頭成像立體視覺系統在微小型機器人視覺導航和近大視場物體識別與定中有著廣泛的應用.盡管魚眼鏡頭攝像機具有很大的視場角(接近180 ) ,但同時也引入嚴重的圖像變形,常規的攝像機標定法無法使用.該文提出一種標定魚眼鏡頭攝像機立體視覺系統的法.在魚眼鏡頭變形模型的基礎上,通過考慮魚眼鏡頭成像的徑向變形、偏心變形和薄棱鏡變形,建立了魚眼鏡頭成像的精確成像模型,然後,利用非性迭代演算法,精確求解攝像機外部參數、內部參數.實驗表明,使用該法得到的立體視覺系統參數滿足精確恢復大場景稠密深度圖的要求
  7. Time delay estimation ( tde ) by using three - element linear array is an important problem in torpedo trajectory tracking system which ttacks target according to strictly geometrical position. it is the basis of measurement of target distance, bearings etc. the error of tde influences directly the accuracy of trajectory tracking. the more efforts have been made in order to acquire high accuracy estimation

    三元直陣的時延估計是魚雷彈道測量系統中的一個重要課題,它依照嚴格的幾何關系進行目標定,是測量目標等參數的主要依據,時延估計的精度直接影響彈道跟蹤系統的精度,為提高時延估計精度人們進行了大量的研究和探索。
  8. The percentage of polymorphic sites, degree of genetic polymorphism and genetic distance were compared and the phylogenetic tree was constructed by neighbor - joining method. the partial mitochondrial 16s rrna gene was amplified by polymerase chain reaction ( pcr ) and the pcr products were directly sequenced after purified. these sequences, together with the homologous sequences of another trichiuridae species lepidopus caudatus obtained from genbank were used to analyze nucleotide difference and to establish a upgma phylogenetic tree by means of biological informatics

    汝us價ay1830 )各12個個體進行rapd分析,對比多態點比例、遺傳多態度以及遺傳,並構建neighbor - join噸系統樹;通過pcr擴增出粒體165rrna基因,純化后直接測序,利用生物信息學法進行序列分析和核昔酸變異比較,結合ge紅bar止中大西洋叉尾帶魚( lepid (護腳caud玫tuseuphrasen1788 )同源序列構建u甲cm叭系統樹。
  9. All the results can be utilized by engineers, during the designing and construction. the main conclusions are listed as follows : ( 1 ) based on the shortest line between weak interbed and limit of excavation and the location of point of intersection between limit of excavation, classification of weak interbed distribution is set up, and the distance of distribution is defined ; ( 2 ) according to the strength and deformation equivalent principle, influence zone of weak interbed is introduced, and a new method to simulating the weak interbed with thickness is built ; ( 3 ) some quantificational results on influence of weak interbed respectively at crown, right shoulder and right wall are summarized ; ( 4 ) some quantificational results on influence of weak interbed with the distance between weak interbed and limit of excavation 0. 2d, 0. 5d, l. od are gained ; ( 5 ) some quantificational results on influence of weak interbed in the rock mass with confining coefficient 0. 38, 1. 0, 1. 5, 2. 0, 3. 0 are summed up ; ( 6 ) some quantificational results are summarized on influence of the underground surrounding rock mass stability with weak interbed, in the representational surrounding rock mass graded ii, iii, iv ; ( 7 ) according to the studying results some advices are suggested on designing of underground engineering

    主要結論如下: ( 1 )以軟弱夾層到開挖輪廓最短和最短與開挖輪廓的交點置為指標對軟弱夾層的分佈部進行了分類,並確定了軟弱夾層分佈; ( 2 )根據強度等效和變形等效的原則,引入了軟弱夾層影響帶的概念,建立了模擬軟弱夾層厚度的一種新法; ( 3 )總結出了軟弱夾層分佈在拱頂、右拱肩、右邊墻時對地下洞室穩定性影響的量化指標; ( 4 )分析出了軟弱夾層開挖輪廓0 . 2d 、 0 . 5d 、 1 . 0d三種情況對地下洞室穩定性影響的量化指標; ( 5 )總結出了在不同的側壓力系數( 0 . 38 、 1 . 0 、 1 . 5 、 2 . 0 、 3 . 0 )地應力場中軟弱夾層對穩定性影響的量化指標; ( 6 )得出了在、 、代表性圍巖中軟弱夾層對穩定性影響量化結果; ( 7 )根據數值試驗成果提出了在有軟弱夾層圍巖中地下洞室設計原則的幾點新內容。
  10. On the circumference of this circle, five points with equal distances from each other shall be determined, one of the points must be in the right above position of the circle

    在此圓周上,定出五個等的點,其一點須於圓之正上。然後將此五點中各相隔的兩點相聯,使各成一直
  11. Synthetic aperture radar ( sar ) is a new type of radar system developed since 1950 ' s. it breaks through the resolution limitation imposed by real aperture. with pulse compression technology, two - dimensional high resolution to distant targets can be realized

    合成孔徑雷達( sar )是五十年代發展起來的一種新型雷達體制,它利用合成孔徑原理,突破了實孔徑天對解析度的限制,並結合脈沖壓縮技術,可以對遠目標進行向和向兩維高分辨成像。
  12. In this dissertation, radar detection in hrr has been taken as background. the followings are main contents of this dissertation : ( 1 ) based on analyzing the targets and the clutter ’ s specific characteristics of hrr radar, the echo models of targets and clutter have been studied respectively ; the changes of targets ’ echoes in different elevation angles, azimuth angles and attitude angles have been analyzed ; then, the echo models of lfm radar clutter have been established

    本文針對高分辨雷達目標檢測開展研究,主要完成了以下幾面的工作: ( 1 )分析了高分辨雷達目標和雜波回波特徵,在此基礎上分別研究了高分辨雷達目標和雜波的回波模型,分析了不同俯仰角、不同角以及不同姿態下目標回波模型的變化,並建立了性調頻脈沖壓縮雷達的雜波模型。
  13. Aiming at the enhanced positioning accuracy of wireless sensor network node location, an improved positioning algorithm which uses a differential error correction scheme that is designed to reduce cumulative distance error and node location error accumulated over the multiple hops is proposed in this paper, together with its basic principle and realization issues

    摘要本文針對無傳感器網路節點的定精度問題,提出了一種採用誤差修正的法來降低累積誤差和定誤差的傳感器網路節點定改進演算法,給出了該演算法的基本原理與實現法。
  14. The underwater - radio buoy for use as obtaining the ocean " s acoustical parameters is a underwater acoustic signals record system which has long distance radio remote control and data transmit function. the technology key of the dissertation study is that under the requirements of the system the monitor and record equipment on the acoustic source vessel, the monitor and record equipment on control vessel command and control the work slate of the buoy system by radio data transmitting mode of short wave transmitter - receiver

    海洋環境參數獲取浮標監測系統屬于具有長電遙控?數傳功能的水下聲信號接收記錄系統,本論文研究目標的技術關鍵在於根據系統要求,指揮船和發射船監控記錄設備通過短波電臺以無數傳式,對浮標系統的工作狀態進行指揮和控制,浮標則通過同一短波通道向指揮船上報浮標、工作狀態、關鍵數據及非常狀態下的報警信號等。
  15. By analyzing the realization of range migration, we conclude that the pipeline structure is effective to implement azimuth processing

    通過分析遷移校正環節的實現過程,提出用流水結構完成處理並且在并行處理平臺上實現。
  16. The appearance position of hot - image satisfied the rule of z2 = z1 - lv, z2 is mean the image distance, z1 is mean the object distance, and lv is mean the distance between the nonlinear medium. the theory is also validated by the optical propagation software. if n = 1, then the nonlinear medium is only one, lv = 0, and it will satisfy the rule z2 = z1

    四、從非性近軸波動程基礎上用散射矩陣理論推導了級聯介質的熱像規律,得出級聯介質的熱像置滿足z2 = z1 - lv ,其中z2為像, z1為物, lv為級聯介質間的,並用光傳輸軟體得到了驗證;發現級聯的非性介質可以看成單一的非性介質相連,散射點對級聯介質的每一段非性介質成像;當只有一段非性介質時,可以認為lv為零,滿足z2 = z1 。
  17. After all have done we could get the equation of indicating pointer and long length graduation. and then calculate the distance between the two lines to estimate whether the two lines are superposition under a given threshold. if not superposition the computer will drive the standard power station to a suitable value and estimate again until being superposition

    根據擬合出的指針直程和長刻程計算出兩者之間的,並根據預先設定的閾值,判斷兩者是否重合,如未重合,則驅動標準源,根據判斷更改指針置,並再次判斷,直到重合。
  18. The seating system is also being installed to improve sightlines for patrons farthest from a stage or other performance areas in the 8, 500 sq. m

    裝上全新的梯階座后,更可大大改善在廣達八千五百平米的場地內,舞臺或表演區與最遠處觀眾之間的視
  19. In the paper, the gpr system developed by us employs several optimization techniques to enhance the system performances, including antenna, sampling - hold circuit, orientation wheel, function of system software, multithreading, and signal processing algorithms. as the result the system works more well with these techniques, and its azimuth and distance resolution of 10 cm has been achieved with detection depth of more than 50 cm. the main contents of this dissertation are summarized as following : 1

    本文根據探地雷達系統工作原理,在電子科技大學探地雷達系統樣機研製的基礎上採用了各種有效的優化技術,包括探測前端、采樣保持電路的優化,定輪、目標定、多程技術的應用,數據採集處理和控制軟體功能的拓展、各種有效的信號預處理演算法的應用等,顯著提高了系統的探測性能和增強了探測效果,使得系統解析度均達到了10cm ,探測深度大於50cm ,其性能指標達到國外先進水平,為進一步的實用化奠定了重要的基礎。
  20. According to the different require of the phase mask, the holographic recording method for the design of linearly chirped phase mask is studied in this paper. the fringe formed by the interference of two spherical waves, whose density varies linearly with space, is used to record the chirped phase mask. the two design schemes proposed in this paper are analyzed and compared, and the experimental results are given

    根據光纖光柵掩模的不同要求,研究討論了用全息干涉法製作性啁啾相掩模的設計法,提出用兩球面波干涉產生條紋密度隨空間性變化的干涉條紋記錄啁啾相光柵,分析比較了文中給出的兩種設計案,給出了實驗驗證結果,並且製作了性啁啾光刻膠掩模。
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