radar prediction 中文意思是什麼

radar prediction 解釋
雷達測報
  • radar : n 〈美國〉【無線電】 〈radio detecting and ranging 之略〉 雷達，無線電探測器 （＝〈英國〉 radiolo...
  • prediction : n. 1. 預言，預告。2. 被預言的事物。3. 【氣象學】預測，預報。
  1. The fusion of stereo vision and laser - radar ( ladar ) is also studied preliminarily in the background of alv navigation. by introducing the ladar data into the height prediction before matching, the fusion can occur on data layer. we have also found and practiced a feature layer fusion method based on dempster - shafer evidential reasoning approach

    將激光雷達的測量結果引入立體匹配前的高度預測中，提出了立體視覺與激光雷達在數據層上的信息融合方法;基於d - s證據理論，提出了立體視覺與激光雷達在特徵層上的信息融合方法。
  2. Lai, senior scientific officer in charge of forecast systems development at the observatory, gave an invited lecture on " applications of nwp numerical weather prediction and radar - based qpf quantitative precipitation forecast techniques for flash flood and landslip warnings in hong kong " in the session on " emerging technology " on the first day of the workshop

    負責拓展天文臺預報系統的高級科學主任黎守德先生在工作坊首天的先進科技環節中發表了特邀演講，題目是數值天氣預報和以雷達為基礎的定量降雨預報技術在香港暴洪和山泥傾瀉警告的應用。
  3. Numerical weather prediction is an important means in present - day weather prediction. mesoscale model mm5 has been used widely in many observatories. along with a large number of doppler radar stations have been built in our country, it is a crucial problem for the meteorologists how to use doppler radar data in numerical weather prediction model

    數值天氣預報是現代天氣預報的重要手段，中尺度模式mm5在很多氣象臺得到了廣泛應用，隨著我國多普勒天氣雷達的普及，如何在數值預報模式中使用雷達資料以提高對中小尺度天氣現象的預報準確率是擺在廣大氣象工作者面前的一個重要課題。
  4. Thirdly, the conclusions of the two aspect applications are given as follows : the exploration of the application of the evaporation duct prediction to the flux relationship research and evaporation duct predicting shows that based on this predicting method and with microwave refractometer, as sensor, ( 1 ) the dimensionless gradient function of temperature, humidity and refractivity in the flux relationships can be determined with higher precision, ( 2 ) the limitations of conventional observations on the predicting accuracy for evaporation duct can be avoided and the precise prediction for evaporation duct can be obtained with the accurate measurement of refractivity profile within a few meters. the radar performance under given evaporation

    三、對兩個應用問題的討論表明：基於本文發展的蒸發波導預測理論，使用微波折射率儀為傳感器： （ 1 ）開展通量關系研究時，可以用於邊界層溫度、濕度和折射率無量綱梯度函數的精確測定和得到蒸發波導環境預測所需的偽折射率參數化函數關系； （ 2 ）預測蒸蒸發波導環境特性和傳播特性及其應用研究發波導環境時可以避免使用傳統氣海界面要素測量中存在的局限，並用折射率音d面不太高的精確測量結果精確預測蒸發波導環境。
  5. Secondly, we bring statistic coding, prediction coding, transform coding and analysis & synthesis coding into radar area. according to the properties of radar data, we take 4 methods, which are huffman coding ; prediction error model and lzw coding ; fft, uniform quantization in each frequency bank and huffman coding ; wavelet transform, uniform quantization in each frequency bank and lzw coding, to compress the genuine ground clutter radar data and give the corresponding results

    根據雷達回波的特性，分別採用了huffman編碼法，預測誤差模型和lzw編碼法， fft 、分頻帶均勻量化和huffman編碼的壓縮演算法，小波變換、子帶均勻量化和lzw編碼的壓縮演算法等四種演算法，並給出了用這些演算法對真實的地雜波雷達回波數據進行壓縮的實驗結果。
  6. The detailed discussion of application of dynamic data association algorithm based on flight path dynamic prediction in this paper offers an new effective way to solving the multitarget tracking problem in track while scan radar

    通過航跡動態預測，對動態航跡數據相關在邊掃描邊跟蹤雷達的數據處理方面應用做了詳細討論，為解決邊掃描邊跟蹤雷達的多目標跟蹤問題給出了一種有效的新途徑。
  7. This paper studies and discusses comprehensively the applications of data processing techniques in track while scan radar. it begins with studies of filter theory and multitarget tracking theory, and continues to make deep discussion of such topics in the multitarget tracking environment as target movement models, adaptive - filtering and prediction, dynamic data association algorithms, and measured data. for radar using purpose, the data algorithms for nnf and the adaptive a - p filtering and prediction based on " cv " model are studied emphatically

    論文對邊掃描邊跟蹤雷達中數據處理技術的應用作了全面的研究與討論，深入研究了符合實際的濾波理論與多目標跟蹤理論；對目標運動模型、自適應卡爾曼濾波與預測技術、各類數據關聯演算法、量測數據的處理等多目標跟蹤所涉及的主要內容進行了討論；根據實際雷達跟蹤要求，對nnf數據關聯演算法和基於「 cv 」運動模型的自適應濾波與預測演算法等作了重點研究。
  8. According to state - of - the - art of evaporation duct propagation research, and to meet the demands on the prediction techniques of evaporation duct environment and the assessment of radar performance under evaporation duct environment, this dissertation gives a thorough research in depth on the subject described above. the researches include the prediction theory of evaporation duct and its applications, the theory of ray tracing based on which the prediction of radio wave rays are conducted and its application to the predicting of radar range performance under a given evaporation duct, and the characteristics of tropospheric ducts over china

    根據上述情況，結合我國盡快得到蒸發波導環境預測技術及在其中運作無線電系統的性能預測技術等需求，本文針對蒸發波導傳播及其相關應用這一熱點難點問題較深入地研究了蒸發波導環境預測技術的理論及其應用、蒸發波導環境中雷達探測性能評估所要求的基本理論之一? ?射線描跡技術及其在代表性蒸發波導環境中雷達探測性能評估技術方面的應用和我國應用所需的我國大氣波導環境特性等幾個方面。
  9. X - band ground based radar ( gbr ) plays an important role in national missile defense ( nmd ) system, it has many important functions such as middle stage surveillance and interception, trajectory prediction, target identifying and classifying. it has important significance to analyze and study gbr system, not only for ballistic missile ’ attack and defense research, but also for our national space surveillance and ballistic missile defense system development

    X波段地基雷達（ gbr ）是美國國家導彈防禦系統中段防禦和攔截系統中最主要和最有效的目標精確跟蹤和識別傳感器之一，它負責中段監視和截獲、預測彈道和實測彈道的精度、識別和目標分類等重要功能，對gbr的系統分析和模擬研究，探究其工作機理和識別手段，不但對于研究彈道導彈的有效突防措施和攻防對抗有著重要意義，對于發展我國自己的空間監測和彈道導彈防禦系統也有著重要的參考價值。
  10. 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。
  11. Recent researches have showed that sea clutter can be modeled as chaotic dynamic. local prediction technique is used for detection and estimation problem in chaotic environment for radar signal processing

    提出了一種基於神經網路的信號檢測方案；信號檢測解決了信號的有無判斷問題，而參數估計則是要解決信號參量的確定問題。
  12. Then on one hand, author makes researches of anti - jamming against pulse jamming 、 gauss white noise jamming and radio frequency noise jamming from the side of signal processing. author exercises much signal processing knowledge of time - domain sliding window accumulation 、 wavelet analysis 、 time - frequency analysis and linear prediction and carries out many simulation experiments. on the other hand, author proposes the anti - jamming methods of using a sar similar to double - base radar and modulating the amplitude 、 the phase of emission signal and changing the frequency modulation slope from the side of changing sar system model

    作者首先提出了合成孔徑雷達抗干擾的定義、分類以及評價抗干擾方法好壞的主客觀標準；然後，一方面從信號處理的角度出發對脈沖式干擾、高斯白噪聲干擾以及射頻噪聲干擾進行了抗干擾研究，其中運用了時域滑動窗口積累，小波分析，時頻分析以及線性預測等信號處理知識，做了大量的模擬實驗；另一方面，本文基於改變合成孔徑雷達系統模式提出了利用類似雙基地雷達來抗干擾，以及對發射信號進行調幅、調相以及改變調頻斜率來抗干擾，同樣做了相應的模擬實驗。
  13. The paper ' s experiments also reveal that it is far beyond the need of improving objective and quantitative precipitation prediction to have only a mature mesoscale model, in effect, the temporal and spatial accuracy of data is crucial, and that radar dat a ' s 4d variational assimilation in mesoscale model is an efficient way to solve the problem of the temporal and spatial accuracy of data

    本文的試驗結果還表明：要想提高客觀定量的模式降水預報，僅有一個成熟的中尺度模式是不夠的，資料的時空精度至關重要，而多普勒天氣雷達資料在中尺度模式中的四維變分同化是解決資料時空精度問題的有效手段。
  14. The assimilation experimentation results indicate that after assimilating radar wind field of small spatial scale, mesoscale and small - scale precipitation prediction can be improved and mesoscale and small - scale information which ca n ' t appear by tradition datum can be gained, which is valuable to analyze the mesoscale and small - scale system structure ; the effect assimilating radar humidity field is n ' t obvious, which is perhaps correlation with precipitation types and assimilating time. the results also show that adding radar humidity field to initial condition at initial time can supply the gap of the regular data in reflecting the mesoscale and small - scale systems, strengthen the humidity in the initial field, and eventually help to improve precipitation. the experiment of assimilating radar wind field and radar humility field at the same time shows that vapor transportation and local vapor divergence play more significant role in causing excessively heavy rain than only high wet center

    同化試驗結果表明：同化空間解析度很高的雷達風場后，能改善中小尺度降水的預報效果，並且能夠得到常規觀測資料所不能得到的中小尺度信息，對分析中小尺度系統結構具有重要意義；同化雷達濕度場效果不明顯，可能與降水類型和同化時刻有關；而直接在初始時刻加入雷達濕度場，補充了常規資料在反映中小尺度系統方面的不足，增強了初始場中的水汽，有利於降水量的增加；同時同化雷達風場和雷達濕度場的試驗表明，水汽的輸送和局地的水汽輻合對于產生特大暴雨的貢獻遠大於僅有高濕中心的貢獻。
  15. Research on mathematics models for electromagnetic interference prediction between radar systems

    雷達之間電磁干擾預測模型研究
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