測天定位 的英文怎麼說
中文拼音 [cètiāndìngwèi]
測天定位
英文
celestial fixing-
Space environment threaten orbited spacecraft " s safe functioning and astronaut " s health, influence greatly communication depended on based - space way, airmanship orientation, military detection, aim identification, weather observation and source exploration and so on by all sorts of function ( magnetic storm, solar proton event and so on )
空間環境通過各種效應（如磁暴、太陽質子事件等）對在軌航天器的安全運行及航天員的健康構成了嚴重的威脅，對依賴于天基手段的通信、導航定位、軍事偵察、目標識別、氣象觀測、資源勘探等等均有重要影響。With the development of space geodesy techniques ( vlbi, llr, slr and gps, et al. ), the application of classical geodesy and astrometry became less and less in application, but it is indispensability technique in absolute orientation of geodesy, launch of mid and long - distance arms, and in other scientific domains
隨著空間大地測量技術（ vlbi 、 llr 、 slr和gps等）的發展，雖然天文測量在應用上有所減少，但在大地測量的絕對定位和中遠程武器的發射等領域中仍然是不可替代的技術。It can provide many users at discretion of any place in the world high definition, all - weather, continuous and real - time three - dimension allocation, velocity measurement and time baseline at the same time ? it had been founded in 1993, and lias been paid great attention in fields of military and social - life application
全球定位系統（ gps ）是新一代的導航定位系統，它能夠為全球任意地點、任意多個用戶同時提供高精度的、全天候的、連續的、實時的三維定位、測速和時間基準。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。Observing method of zenith distance for celestial positioning
頂距測量的天文定位法Take target bearing by antenna diginal pattern
用天線數字方向圖定位測向The functions of the software system include controlling the hardware, searching satellite and measuring the main parameters of the antenna
軟體系統包括：完成對硬體的軟體控制，實現尋星定位子系統的尋星演算法以及對天線主要測量參數的軟體實現。A unit specified by a scale, such as an inch, or by variable conditions, such as a day ' s march
測量單位用刻度或其它條件（如一天的步數）確定的單位，如英寸、小時等Besides, as crustal movement would affect sea level measurement, the hong kong observatory in co - operation with the lands department and hong kong polytechnic university has started to make measurement of the vertical ground movement at tide gauge stations, using satellite - based global positioning system techniques, since 2004. the data will support long term sea level change studies in future
此外，由於地殼移動可能對海面水位測定有影響，香港天文臺與地政總署及香港理工大學合作由二四年起利用全球定位系統衛星技術，定期測量測潮站所在地殼的升降情況，支援日後本港長期海平面變化的研究。Overhead satellites, diving robotic probes, buoys, sonar mapping, floating and underwater observatories and tagged ocean animals ( whose tags email scientists every day with an update as to where they ' ve been and what they ' ve been doing ) allow scientists to see more of the oceans than ever before
太空中的衛星、潛水機器探測器、浮標、聲波定位儀、海面與海底實驗室，以及被做了標記的海洋動物（這種標記能讓科學家每天都得知這些動物到了那裡，正在做什麼）讓科學家比以前對海洋有更多的了解。The research in application of machine vision technique in agricultural production has been developing very fast in the world. in this paper the research evolution of application of machine vision technique in automatic harvesting and processing of agricultural products were reviewed, such as the new research achievements to detect fruits which hide behind leaves or other fruits, to identify fruits during the day and the night, to judge the ripeness of the fruits, to determine the cutting lines, to locate the boundary of an object, to orient, and to control the quality of products
綜述了國外農產品收獲和加工自動化方面的研究進展，介紹了國外在識別被葉子遮擋或部分重疊的果實、樹上果實的全天候識別技術，果實成熟度的檢測方法，以及農產品加工中的自動定位、定向、雜質檢出和質量控制等方面所取得的研究成果。Mr yeung said, " regional climate change study is a key area of work of the hong kong observatory. " besides, as crustal movement would affect sea level measurement, the hong kong observatory in co - operation with the lands department and hong kong polytechnic university has started to make measurement of the vertical ground movement at tide gauge stations, using satellite - based global positioning system techniques, since 2004. the data will support long term sea level change studies in future
楊繼興表示：研究本地區氣候變化是香港天文臺工作重點之一。此外，由於地殼移動可能對海面水位測定有影響，香港天文臺與地政總署及香港理工大學合作由二四年起利用全球定位系統衛星技術，定期測量測潮站所在地殼的升降情況，支援日後本港長期海平面變化的研究。The symphonic sound stagea listener s guide
交響舞臺音場定位測試天碟Based on the characteristic of system, the antenna is designed with one transmitter and two receivers and the localization principle of twsr is analyzed. target localization algorithm and error distribution computing method based on time - only - localization ( tol ) are proposed
同時根據系統特點，天線採用單發雙收方式，分析了穿墻探測雷達定位原理，提出了基於波達時間（ tol ）的目標定位演算法和誤差分佈計算方法。Then its mathematical model is set up and its validity is proved by computer simulation results. in the following, a new processing method of using three - antenna to detect, locate and image moving target is proposed based on dpca and interferometric theory. this method can not only suppress ground clutter effectively and detect moving target but also locate accurately azimuth position of moving target and estimate its velocity
深入分析了dpca和干涉的原理后，提出一種沿航跡放置的三天線sar動目標檢測和成像方法，詳細描述了該方法的工作機理，給出系統組成框圖，並給出該方法進行動目標檢測、定位、測速和成像的步驟，然後給出了計算機模擬方案及大量的模擬結果，充分證明了採用該方法不僅能夠有效的抑制地雜波、檢測動目標，還能夠對動目標精確定位，準確估計出動目標的速度，對動目標重新聚焦成像。Apota automatic positioning of telemetering antenna
遙測天線的自動定位In this paper, in order to estimate coal storage volume in open stockyard, we have analyzed the optical triangulation and applied it to the measurement of large surface we have stated the measuring theory of distance with laser and the measuring theory of angle. we have also analyzed main factors influencing measurement precision and studied several key techniques in large - scale measuring such as the problem of non uniformly distributed of distance measuring resolution in large surface measurement, the methods of locating laser spot center and so on
本文通過對火力發電廠露天煤場存煤量的自動檢測系統的研究，深入分析了光學三角測量方法的原理，並將其應用於大型曲面測量；闡述了激光測距原理和角度測量原理；對大型曲面測量的實現方法、畸變光斑圖像的幾何中心的準確定位等幾個方面的關鍵技術進行了探討；分析了大范圍測量時影響測量精度的主要因素。The paper analyzed the typical method of positioning of optical fiber in astronomic observation. according to the structure ' s characteristics and the working demands of lamost, bring forward the new plan on positioning of optical fiber that the focal plane is divided up many unit zones
通過對天文觀測中光纖定位典型方法的分析，結合工程的特點和工作要求，提出了在焦面上進行分區，並且在單元區域內做直線運動和旋轉運動的雙電機單元光纖定位機構的方法。The methods for leak detection and location in long - distance oil and gas pipeline
石油天然氣長輸管道泄漏檢測及定位方法The targeted readership of digital communication world includes : managers and technical personnel in administrative departments of various levels of the ministry of information industry, ministry of radio, film and television, ministry of aviation and space, and defense industry ; users of proprietary networks of maritime, transportation, petroleum, coal, water conservancy and public security ; communication operators, equipment manufacturers, equipment providers, system integrators, network service providers and users ; equipment manufacturers, operators of satcom, navigation and positioning, and earth observation ; enterprises of radio and television, all departments of radio, film and television at prefecture or county level, and relevant institutions and operators ; and experts, scholars, technical and engineering personnel, teachers and students of science research institutions, r & d organizations and universities
《數字通信世界》的讀者對象：信息產業部、廣電系統、航空航天系統、國防軍工系統各級管理部門的主管及技術人員；海洋、交通、石油、電力、煤炭、水利、公安等專網用戶；通信運營商，設備製造商、設備供應商、系統集成商，網路服務商及使用部門；衛星通信、導航定位、對地觀測等設備商、運營商；廣播、電視企業和全國各地市縣級廣播電視局、臺、站等相關機構及運營商；科研機構、研發部門、專業院校的專家學者及廣大工程技術人員和師生。分享友人