方位跟蹤 的英文怎麼說

中文拼音 [fāngwèigēnzōng]
方位跟蹤 英文
azimuth tracking
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 位 : 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...
  • 跟 : Ⅰ名詞（腳的後部或鞋襪 的後部） heel Ⅱ動詞1 （在後面緊接著行動） follow 2 （指嫁給某人） be marrie...
  • 蹤 : 名詞（腳印; 蹤跡） footprint; track; trace; trail
  • 方位 : position; bearing; direction; points of the compass; placement
  • 跟蹤 : follow the tracks of; tail after; following; follow up tracing; track; tracking; trail; lock on; ...
  1. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式（ 16qam和4 - qpsk ）進行了模擬工作並給出了模擬結果，同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試；然後在基於軟體無線電思想的數字處理平臺（該數字處理平臺實現了中頻數字化）上用dsp軟體完成了載波的相位跟蹤。
  2. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  3. In astronomical coordinates ( reference mark is north latitude 43. 9 ), analyzed is the effect of azimuth angular velocity, acceleration and altitude angular velocity, acceleration etc. some formulae were given to compute all correlative quantities. with regard to the course of data processing beforehand, the thesis focuses on outliers eliminating technology because of outlier increasing acutely of high - elevation tracking ( approaches 10 - 20 % )

    在觀測坐標系中推導出確定天頂盲區理論范圍公式和滿足過天項跟蹤條件的關系式；在天文坐標系中以長春衛星觀測站（北緯43 . 9 ）作為計算基準，分別討論了方位、俯仰方向的角速度、角加速度等對天頂盲區的影響，在理論分析上為解決過天頂跟蹤問題打下了基礎。
  4. It indicated that the primary protoplasts of p. digitatum were released mainly from the hyphalapex, and occasionally from the subapical or original sites

    此外，還對原生質體的釋放和再生方式進行了跟蹤觀察。原生質體釋放有頂端、側端和原位釋放3種方式。
  5. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  6. To provide rather reliable and efficient technology guarantee for application in long - distance identification, location, tracking and data transmission to the persons, vehicles and objectives

    對人、車、物的遠距離識別、定位、跟蹤、數據傳輸等方面的運用提供了非常可靠和有效的技術保障。
  7. Based on this model, the principle of many kinds of localization methods is discussed, and measure equation is set up. then the performances and observability of different localization methods are analyzed

    然後根據此模型，詳細討論了多種定位跟蹤方法的原理，並分別建立觀測方程，對各個定位法的性能進行分析比較，給出了可觀測條件。
  8. Research of aekf application algorithm used for bearings - only tracking

    一種純方位跟蹤中的自適應濾波演算法
  9. Azimuth tracking cursor

    方位跟蹤指示器
  10. Bearing - only tracking ( bot ) is a typical question pertaining to target motion analysis ( tma )

    無源唯方位跟蹤（ bearing - onlytracking ）技術是目標運動分析（ tma ）中一類典型問題。
  11. The theory and performance of both batch processing and sequential filtering are detailed respectively in chapter 4

    在第四章里將詳細地討論採用批處理的方法和序列濾波的方法解決唯方位跟蹤問題的原理和性能。
  12. The implement of direction finding cross location and errors analysis are on the focus. the multi - warships bearings - only tracking algorithm based on direction finding cross location and distributed multi - warships bearings - only tracking are also presented. ( 6 ) the observation prerequisite of single warship bearings - only tracking is analyzed, and optimal maneuver of the observer warship is discussed

    5研究了多艦純方位跟蹤的演算法，把多艦純方位跟蹤分成集中式跟蹤和分散式跟蹤兩類，並分別進行了分析比較，重點研究了測向交叉定位法的實現及誤差分析，給出了基於測向交叉定位的多艦對運動輻射源的跟蹤演算法和基於信息融合的多艦純方位分散式跟蹤演算法。
  13. Observability of maneuvering target passive tracking with bearing and doppler measurements

    基於方位角和多普勒的機動目標無源定位跟蹤可觀測條件
  14. For completeness of discussion chapter 2 provides fundamental of location estimation and error analysis

    為了論述的完整性，第二章討論無源定位跟蹤的原理、方法及誤差分析。
  15. Essentially, passive localization and tracking technology consists of localization and tracking measure methods and algorithms

    無源定位跟蹤技術實質上是定位跟蹤方法和定位跟蹤演算法的融合。
  16. Moreover, its interior pll circuit substitutes traditional pll. as a result, the presented design not only overcomes some shortcoming of traditional circuit such as tracking speed and accuracy, but also gets rid of response lag time and multi - phase noise. the system design is also important to improve our country ' s fault diagnosis standard

    而該系統內部鎖相電路代替了傳統方法中的pll ，因此，提出此系統設計不僅能夠克服基於傳統鎖相環電路的等轉角采樣方法跟蹤精度低、速度慢和使用不便等特點，還能克服電路中的由於不可避免的響應延遲時間所導致的不適合快速的列車運行及過多的相位噪聲問題，對于推動我國鐵路故障在線診斷技術的應用普及具有重要意義。
  17. ( 4 ) in feature - based tracking, a histogram - based tracking algorithm which finds a probable location of the interested object is introduced. then improves qtsu, introduces a method which segments an image by the center of shape of histogram and compares the two methods. finally, tracking the feature of the object by the center of gravity and giving the tracking curves

    （ 4 ）基於特徵的跟蹤；採用先粗定位后細定位的方法，首先研究了一種直方圖跟蹤方法，利用直方圖的一些信息完成粗定位，即找到目標的大體位置，然後在細定位的分割方法上，研究了聚類，並將普通的聚類演算法進行改進，得到較好結果，將最大類間方差閾值法進行擴展，研究了直方圖形心分割方法，並將后兩種方法進行比較。
  18. She needs to track inventory movements from one location to another in a transaction consistent manner, and participate in auditing any inventory changes

    她需要以事務一致的方式跟蹤庫存從一個位置到另一個位置的移動情況，並參與對任何庫存更改的審核。
  19. If registered enterprise wants to apply for production permit, product testing, technological project listing, iso9000 attestation, our administration guide dept. and quality supervision dept. will offer you all - round tracking services to help you out of the difficulties, ensure you an earlier production & an earlier return

    注冊生產后的企業需要辦理生產許可證、產品測試、科技項目申報， iso9000認證等要求，管理指導部和質量技監部可全方位跟蹤服務，為投資商排憂解難，推進企業早日投產，早日回報。
  20. The major research works are divided into five sections, including warship bearings - only tracking maneuver research, warship bearings - only tracking research, multi - warships passive data association research, multi - warships passive location research and the engineering implementation of bearings - only passive location systems. the detailed research works are outlined as follows : ( 1 ) a method of evasion factor matrix is presented, which can add the possible patrol zone of targets ( enemy ' s warships ) according to intelligence, and the land and island information provided by electronic chart to the modified gain extended kalman filter, and modifies state equation. it can improve the location precision of the modified gain extended kalman filter

    研究內容共分五個方面，分別是單艦純方位無源定位機動研究、單艦純方位無源定位跟蹤研究、多艦無源數據關聯研究、多艦純方位無源定位研究以及艦艇純方位無源定位系統的工程實現，主要完成了如下的工作： 1提出一種規避因子矩陣的方法，把根據情報獲得的目標（敵艦艇）可能活動區域，以及電子海圖提供的陸地島礁信息加入修正增益推廣卡爾曼濾波器中，對目標狀態方程進行修正處理，可提高修正增益推廣卡爾曼濾波定位演算法的定位精度。
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