beam tracking 中文意思是什麼
-
Parabolic antenna in a widely used is tracking antenna area, by use the optimum design, it may produce a very narrow beam, it ' s tracking precision is high, but because it ' s beam width is very narrow, the searching target is very difficult
摘要拋物面天線是火控雷達中普遍使用的一種跟蹤天線，通過系統優化設計，可以形成很窄的波束，所以其跟蹤精度很高，因為其波束很窄，所以搜索發現目標困難。 -
Considering the characters of 3 - axes coordinate system that is not included in ship rectangular frame or inertial frame, compensation conditions are deduced through studying the effects of ship - swing. the paper studies how to transfer line velocity and acceleration in the inertial frame to angular velocity and acceleration which correspond each axis, then gives the computer function scheme. servo control scheme which can overcome ship swing and realize moving - target accurate tracking is designed according to inconsistency of radar base angle and beam angle
針對三軸軸系既非甲板坐標系又非大地坐標系的特點，既研究了船搖對正交三軸雷達系統的影響，推導實現船搖不變性的補償條件，又研究了將目標在大地坐標系中的線速度和線加速度濾波值折算到各軸對應的角速度和角加速度值的計算關系，並作出了計算機功能框圖。 -
If we tracked satellite by the tradition narrow beam antenna, that should caused the jumping tracking between multi - aircraft. that is difficult to achieve by the immense antenna boot and the follow - up system. using digital beam forming realize aircraft target tracking and controlling should be best means to resolve this problem
隨著我國多星測控系統的發展，在一個測控站作用范圍內將出現多星，同時要求地面站對多星同時進行跟蹤測控；如果採用傳統的窄波束天線對目標進行跟蹤測控，必然導致天線在多個飛行器之間進行跳動跟蹤，這對于龐大的天線引導、伺服系統來說難以實現，採用數字波束對飛行器目標進行跟蹤測控是解決此問題的最好方法。 -
A genetic algorithm assisted beam tracking and forming is applied to solve the problem of tracking a continuous moving signal while suppressing a strong fixed interference
摘要介紹了遺傳演算法在波束追蹤和成型中的應用，著重探討了該方法在解決追蹤連續信號的同時抑制固定強干擾的問題。 -
With the mathematic model of tracking beam current by velocity, real - time tracking can be obtained ; with current simulation controlling transducer and subsection linearity, precision of velocity ( error in ? 1 % ) is triumphantly can be controlled ; with inspection of the pulse numbers of switches, the position of all vehicles are checked to eliminate the error of calculating distance between all ones
通過建立速度跟蹤束流的數學模型，較好地解決了速度跟蹤束流的實時性問題;通過採取用電流模擬量控制變頻器和分段線性處理的辦法，成功地解決了速度精度問題（誤差在士1 %內） ;通過檢測接近開關觸發的脈沖數，適時校核所有小車位置，消除各車之間距離計算誤差，從而很好地解決了距離累計計算誤差。 -
With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas
相控陣天線利用移相器補償信號到達輻射單元時間的差異，從而控制波束方向;天線沒有機械旋轉問題，只需改變移相器的設定值，波束便可以在毫秒級內掃描其覆蓋空域內的任何地方，提高了天線對目標的跟蹤速度，是目前武器系統天線的發展方向。 -
The fast - steering mirror is a device used to control the direction of light beam accurately, with great inertia mechanical structure, form a compound shaft tracking system which apply to drive and stabilize the light beam
快速控制反射鏡是採用反射鏡面精確控制光束方向的一種裝置，與大慣量機架結構的主系統共同構成復合軸跟蹤系統，在各種光學系統中用於對準和穩定光束。 -
Digital signal processing technologies were used to produce spatial and directional beam in smart antennas. then the main beam aims at the coming direction of reference user and the side lobe points to the coming direction of interference user. smart antennas are classified to switching - beam and tracking - beam
智能天線利用數字信號處理技術，產生空間定向波束，使天線主波束對準期望用戶信號到達方向，旁瓣或零陷對準干擾信號到達方向，達到充分高效利用移動用戶信號並刪除或抑制干擾信號的目的。 -
The central beam will be reduced in brightness because it is tracking on both land and pits
主光束亮度將降低，因為它在臺和坑上進行跟蹤。 -
Wheel tracking test on asphalt concrete beam under several levels of load is carried out by apa to study the fatigue behavior of asphalt concrete material and compare the reinforcing effects of geotextile with that of glass fiber geogrid
本文應用瀝青路面分析儀upa ）對瀝青混凝土梁式試件進行多種荷載水平下的往返輪載疲勞試驗，研究瀝青混凝上的疲勞性能，並對比土工布、玻璃纖維格柵的加筋效果。 -
The results of analyzing the fatigue behavior of the specimens in direct tension test, cantilever beam bending test, three point bending test and wheel tracking test by apa show that the fatigue failure regularities of specimens in different tests are different
關于直接拉伸、懸臂梁彎曲、三點彎曲和往返輪載（ apa ）等疲勞試驗的試件所開展的疲勞損傷分析發現，試驗方法不同，其疲勞損傷破壞規律不同。 -
Firstly, one conventional model of fatigue damage and classical damage mechanics theory are used to analyze the fatigue behavior of asphalt mixture specimens in fatigue tests including direct tension, cantilever beam bending, three point bending and wheel tracking by asphalt pavement analyzer ( apa ). for every type of tests, corresponding fatigue damage model and computational method are set up
首先直接採用一種常用的疲勞損傷演化模型和經典損傷理論，分別對直接拉伸、懸臂梁彎曲、梁式試件三點彎曲和apa往返輪載等多種疲勞試驗開展疲勞損傷分析，針對每類試驗均建立了相應的疲勞損傷模型和疲勞損傷計算方法。 -
The central beam and one beam on each side are used by the cd for the tracking system
主光束和兩邊各一個副光束被用於軌道跟蹤系統。 -
The servo system is responsible for the focusing and tracking of the laser beam on the cd
伺服系統負責激光束在光盤上的聚焦和軌道跟蹤。 -
Detailed descript the software and hardware to achieve the tracking by digital beam forming. analysed the concrete software and hardware to realize the scheme. give out the ultimate realization result
對實現數字波束跟蹤的軟硬體進行了描述分析，分析了具體的軟硬體實現方案，並詳細分析跟蹤方案，給出了最終的實現結果。 -
And the results of them have been analyzed, from basic one to sum - difference beam measurements which are popular in phased array radar. then there is a deep investigation on the application of sum - difference amplitude comparison in target tracking in the multi - path environment. finally, the origin of multi - path effects is analyzed and some methods to eliminate the multi - path effects are introduced briefly
從基本的方法入手，過渡到相控陣雷達常用的單脈沖和差波束法，分析了這些方法各自的測角效果;著重研究了多徑效應影響下比幅和差波束法在目標跟蹤中的運用，並分析了多徑效應的形成原因，簡單介紹了幾種常用的多徑消除技術。 -
In procedure - controlling design, based on identifying the number and position of the vehicles, we settle three technical problems such as real - time tracking beam current by velocity, precision of velocity and eliminating cumulate error from distance calculation
在過程式控制制子系統方案設計中，以識別小車的車號和位置為基四川大學碩士論文礎，重點解決了速度實時跟蹤束流，速度的精度，消除距離累計計算誤差這三個技術難點。 -
However, you have to rotate the laser head and interference system in order to obtain continuous beam in measurement operation and can not utilize the existing laser interferometer performing tracking measurement in practice
這樣的測量系統實現比較容易，但必須對整個系統統籌進行設計，現有的激光干涉儀無法實現跟蹤測量。 -
Detailed introduce the tracking problem to multi - aircraft tracking telemetry and command system. by use of circular array antenna realize the tracking of multi - aircraft by digital beam forming ( dbf ). detailed introduce the gradient tracking rule, and utilize it to multi - aircraft tracking
對多飛行器測控系統的跟蹤問題進行了詳細介紹，提出了採用圓陣、實現利用數字波束對多飛行器跟蹤的方案，對梯度跟蹤方法進行了詳細說明，利用梯度演算法實現飛行器跟蹤，並在此基礎上討論了跟蹤的實現方法。 -
It is proved by computer simulation that the slant 3 - axes radar can be used in target tracking in the whole air space without blind zone and beam slant. it is pointed out that the slant 3 - axes radar can reduce the maximum angle for elevation axis compared with 3 - axes perpendicular radar, then reduce the technique demand of angular velocity and acceleration of elevation axis
通過模擬驗證了傾斜三軸雷達系統在工程上可以做到波束無傾斜和全空域跟蹤無盲區的結論，並指出此系統與正交三軸系統相比，可以減少俯仰軸的最大轉動角，從而降低系統對俯仰軸的角速度和角加速度的技術要求。
分享友人