weather radar system 中文意思是什麼
weather radar system
解釋
氣象雷達系統-
This system also includes an on - line information service through which airline companies can retrieve flight documentation including forecast charts of en - route significant weather and wind temperature data issued by the world area forecast centres at london and washington, weather forecasts for departure, destination and alternate aerodromes, as well as the latest meteorological information of weather radar and satellite images, aerodrome warnings, tropical cyclone information, etc. weather briefings are provided via telephone or video conferencing equipment to flight crew members on request
該系統也包括一在線資料服務，航空公司可透過此服務提取包括由倫敦及華盛頓世界航空區域預報中心發放的航路上重要天氣及風/溫度資料的預報圖、起飛、目的地及備降機場天氣預報的飛行氣象文件。此外，航空公司亦可提取最新的氣象資料包括天氣雷達圖像、衛星雲圖、機場天氣警報及熱帶氣旋資料等。如有需要，航空預報員可以透過電話或視像會議系統向飛行人員作天氣簡報。 -
This system also includes an on - line information service through which airline companies can retrieve flight documentation including forecast charts of en - route significant weather and windtemperature data issued by the world area forecast centres at london and washington, weather forecasts for departure, destination and alternate aerodromes, as well as the latest meteorological information of weather radar and satellite images, aerodrome warnings, tropical cyclone information, etc. weather briefings are provided via telephone or video conferencing equipment to flight crew members on request
該系統也包括一在線資料服務，航空公司可透過此服務提取包括由倫敦及華盛頓世界航空區域預報中心發放的航路上重要天氣及風溫度資料的預報圖、起飛、目的地及備降機場天氣預報的飛行氣象文件。此外，航空公司亦可提取最新的氣象資料包括天氣雷達圖像、衛星雲圖、機場天氣警報及熱帶氣旋資料等。如有需要，航空預報員可以透過電話或視像會議系統向飛行人員作天氣簡報。 -
Development of simulated training system for weather exploring radar
氣象探測雷達模擬訓練系統的研製 -
Secondly, we discuss the application of if sampling and digital demodulation technique in pd weather radar signal processing system
其次，本文研究了中頻采樣及數字解調技術在氣象雷達中的應用。 -
Then, we introduce the basic structure of pd weather radar signal processing system and their function of each subsystem, mainly including intermediate frequency receiver, clutter elimination, range correcting and smoothness, ambiguity resolution and spectrum estimation
並在此基礎上介紹了氣象雷達信號處理系統的基本構成與各部分的主要功能，主要包括氣象回波中頻接收、雜波抑制、距離訂正、平滑處理、解模糊和譜矩估計等。 -
This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system
本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。 -
This radar database system fits for china ' s radar network using object - oriented programming design method, recording some important parameters of radar data : the longitude, latitude of radar station, radar type, radar wavelength, radar data format, weather kind ( kind of intensity radar echo, schema of velocity radar, echo shape ) embodying in the radar data, etc. it also records the weather course information embodying in a series of relational radar data : the beginning time of weather course, the ending time of weather course, weather type, etc and the disk information, including recording time, recording contents, recording data number and weather type, etc. above all, this system realizes some basic operational processing : adding, deletion, updating, query of records and also some assistant functions : exportation, data transformation, displaying, backing up of data
該數據庫系統採用面向對象程序設計方法，用visualc + + 6 . 0作為應用程序的前端開發工具，用microsoftaccess2000做數據庫，不僅實現了對雷達基數據信息的一些基本操作：記錄信息添加、刪除、修改、查詢，還實現了處理、分析雷達基數據所需的一些操作：數據導出，數據格式轉換、數據回顯（圖像方式和動畫方式） 、數據壓縮、備份等，另外針對日前雷達臺站存儲雷達數據的現狀，還實現了對存儲光盤的管理。 -
The theoretic analysis and computer simulation results reveal that this influence ca n ' t be ignored. because the if sampling and digital demodulation technique can improve amplitude and phase unbalances of in - phase and quadrature channels, we apply it in the pd weather radar signal processing system and select several digital demodulation algorithms, which are easier to implement, for this system
由於採用中頻采樣和數字解調技術能有效地提高正交解調兩路的幅相一致性，本文將中頻采樣及數字解調技術應用到脈沖多普勒氣象雷達信號處理系統中，並結合氣象信號的特點選擇了適合工程實現的中頻采樣及數字解調演算法。 -
Thirdly, we study several ground clutters elimination algorithms combining the properties of ground clutters and we get the conclusion that the frequency domain algorithm has better performance through extensive analysis and comparison. finally we proposed a typical pd weather radar digital signal processing system realization project including the software and hardware implementation
本文還結合氣象雷達地雜波的特點詳細研究了各種濾除地雜波濾波演算法，在對各種濾波演算法進行分析和折中考慮之後，選擇地雜波頻域濾波演算法應用於本信號處理系統。 -
The observatory ' s weather radar system at tate ' s cairn detects rain within about 500 km of hong kong and gives estimates of rain intensity and movement
天文臺設于大老山的天氣雷達，能監察香港約500公里范圍內的降雨區，和估計雨勢及雨區的移動。 -
6. radar and satellite meteorology : principles of doppler weather radar ; interpretation of radar imagery ; principles of satellite remote sensing ; the global weather satellite observing system ; interpretation of satellite pictures
6 .雷達及衛星氣象學：多普勒天氣雷達原理雷達圖片解釋衛星遙感原理全球氣象衛星觀測系統衛星圖片解釋。 -
For engineering application, the signal processing technology of airborne forward ? ooking windshear weather radar system is studied in this composition. the contents include signal processing methods for weather, turbulence and windshear targets
本文從工程應用出發，綜合研究了機載前視風切變氣象雷達系統的信號處理技術，研究內容包括氣象、湍流和風切變目標的信號處理。 -
Miss sharon lau and mr. c. m. shun, who were responsible for the windshear and turbulence warning system wtws and terminal doppler weather radar tdwr respectively, talked on the observation of terrain - induced windshear at the hkia based on data collected by the tdwr, pilot reports and wind recordings on commercial aircraft
分別負責風切變及湍流警報系統wtws及機埸多普勒天氣雷達tdwr的劉心怡小姐及岑智明先生講述根據從tdwr資料機師報告及飛機上紀錄的風速風向而觀察到由地形引起的風切變。 -
Synthetic aperture radar ( sar ) is an active microwave remote sensing imaging system, which is widely used in earth observation and military detection due to its quality of working all day, all weather and its penetration ability in certain frequency band
合成孔徑雷達（ sar ）是一種主動式成像雷達，由於它具有全天時、全天候的監測特性，並且在一定波段對植被、淺層土壤具有穿透能力，因此被廣泛應用於農林、地質、水文、海洋與環境監測、國防等領域。 -
High resolution numerical weather prediction system utilizes radar data and other observational data to produce rainfall forecast fig
圖表4 -高解析度數值天氣預報系統，使用雷達數據及其他觀測資料，作雨量預測。 -
In the end of this paper, we introduce that in the context of weather radar observations the enhancement of thin - line features in meteorological radar reflectivity images is addressed using a wavelet - based analysis. passing the thin line highlighted image into forecast system to complete the feature identification, we can get basis element for thunderstorm forecasting
本文最後介紹了採用小波變換的方法對濱州雷達資料的反射率圖像進行處理，得到特徵線增強后的圖像，將其輸入自動預報系統實現特徵識別，可為雷暴預報等提供某些初步識別判據。 -
In addition to conventional meteorological observations, the observatory s weather radar system provides a good means to continuously monitor the movement and development of rain - bearing clouds
除了傳統氣象觀測方法之外，天文臺的天氣雷達系統，不斷監測雨雲帶的移動和發展情況。 -
This paper introduce a design of doppler weather radar second production net - server platform and implement the function of this system, such as far distance transmit radar ' s data, data process and image display. so that radar site and web site are banded together to realize network - exploration, different levels user can share the observed weather information of doppler radar and network - predict easily
該網路服務系統，具有較完善的遠距離雷達數據傳輸、數據處理和圖像實時顯示功能，使得雷達站和web網站捆綁在一起，實現網路探測，各類觀測資料共享及聯網預報，便於各層次用戶使用。 -
Apart from the above weather stations, meteorologists from the three places also established over the years the exchange of real - time weather information through dedicated data lines, the networking of weather radar data from the area, and the closer consultation among forecasters in these places during the approach of severe weather. currently in progress is the expansion of swirls ( short - range warning of intense rainstorms in localised systems ), developed by the hong kong observatory, to a rainstorm forecasting system covering the pearl river estuary
除上述氣象站外，三方的氣象人員多年來還實現了利用專用數據線路交換實時氣象資料、將三地的天氣雷達數據聯網、以及加強了三方預報員進行重要天氣評估的磋商等。目前正開展工作，以香港天文臺開發的小渦旋暴雨臨近預報系統為基礎，致力擴展成一套覆蓋整個珠江三角洲的暴雨預報系統。
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