propagation forecast 中文意思是什麼

propagation forecast 解釋
傳播預報
  • propagation : 持續培養
  • forecast : vt. （forecast, forecasted; forecast, forecasted） 預測；預報（天氣）。n. 預測；預報。 a weather forecast 天氣預報。
  1. The text uses the method of ray tracing that is based on improved traditional mirror image principle of the radio wave forecast and two ray propagation model, which can be used in any complex propagation environment and found any propagation path from the sending set to receiving machine without redundancy computer

    本文是基於無線電波預測中傳統的鏡像原理與雙射線傳播模型的結合而提出的改進了的射線跟蹤演算法，它能用於任何復雜的傳播環境中，能找到從發射機到接收機之間的所有傳播路徑而無須冗餘的計算。
  2. Then, after computing xpd induced by rain, its forecast model at different propagation distance is found. this paper also discusses the relation of reflectivity of rain with rainfall rate, taking different polarization wave into account, and that of fog with visibility

    在研究了雨、霧介電特性的基礎上，計算了雨的去極化解析度，得到了不同頻率、不同傳播距離的去極化解析度預報模型；計算了不同極化狀態的波的反射率隨降雨率的變化規律。
  3. Combined with the significant project - gongboxia hydro - power station construction, emphasized on construction during flood period of power station construction period, the climate character of the upstream of yellow river basin and the practice operation state of cascade reservoirs are analyzed, some problems in construction during flood period such as flood propagation time, interval flood discharge forecast, construction risk, flood period pre - alarm and longyangxia reservoir ' s function on construction of gongboxia are also studied, with an aim at presenting real interval flood forecast scheme and dispatching method, so as to provide technological support for gongboxia hydro - power station construction period

    本論文結合國家重點工程項目?公伯峽水電站的建設，以電站建設期施工渡汛為研究重點，從實施出發，分析黃河上游氣候特性和梯級水庫群的實際運行狀況，對施工渡汛中的主要問題?洪水流達時間、區間洪水預報、渡汛風險、汛期預警、龍羊峽水庫在渡汛中的作用等進行了比較全面深入的研究，目的在於提出可用於實際的區間洪水預報方案和調度方法，為公伯峽水電站施工期建設提供技術支撐。
  4. A three - tiered artificial neural network ( ann ) model with a feed - forward, back - propagation net - work structure was developed to forecast river flow in the manwan reservoir

    摘要以雲南省漫灣水電站歷史徑流狀況為研究對象，運用三層前饋反向傳播神經網路模型對徑流進行中長期預報。
  5. Based on the historical space forecast data and corresponding actual data provided by a global semiconductor assembly and test company, the uncertainty of space planning was defined. during this analysis process, linear regression, grey prediction, neural network back propagation algorithm and confidence interval were applied, respectively, to define the uncertainty. compared with those methods, the confidence interval of historical space forecast error, calculated by mathematical statistics, was the reasonable method to define the space forecasting uncertainty

    本文從半導體工廠長期生產能力計劃的頂層即廠房生產面積的計劃展開，對一跨國半導體封裝測試公司提供的廠房生產面積的長期歷史預測數據以及對應的真實數據進行分析，採用線性回歸，灰預測，神經網路bp演算法，基於數理統計的置信區間的求解等方法分別定義廠房生產面積預測的不確定度，經多種方法的比較得出，基於數理統計方法求解出的生產面積歷史預測誤差置信區間能直觀清楚地標定不確定度。
  6. According to the principle of sticking propagation, the parameters for breakout forecast system have been analyzed and modified in this paper, and some further improvements have been put forward later

    根據粘連擴散理論，對漏鋼預報系統參數進行了分析和修改，並提出進一步改善的方法。
  7. The prediction period of flood forecast is decided by the flood propagation time to a great extent, and its shorter or longer play an important role in decision of construction scheme during flood period

    洪水預報的預見期主要由水量傳播時間決定，預見期的長短對施工渡汛方案的制定有決定性作用。
  8. Research on retrieval of gps water vapor and method of rainfall forecast are keen field which draws all attention from wide world. the dissertation is accomplished on the basis of sino - italy collaborative project - ' the integral system of flood risk programming, monitoring and real time forecasting " and the primary achievements and conclusion reached include : ( 1 ) a reasonable design has been made for gps water vapor monitoring network according to the theory of gps satellite signal propagation and vertical distribution of water vapor and local synoptic characteristic of binjiang basin, the effective area where water vapor can be detected by gps station has been determined under different cut - off angles. the conclusion has been reached that 3 ~ 4 gps receivers are enough for water vapor monitoring in binjiang basin

    Gps水汽反演和降雨預報研究是當前氣象遙感應用的一個前沿探索領域，本論文依託于中意科技合作項目「洪水風險規劃、監測和實時預報的集成系統」 ，主要成果體現在以下方面： （ 1 ）提出了一個合理的gps水汽監測網設計方案根據gps衛星信號傳播原理和水汽垂直分佈規律以及流域天氣的地方性特徵，確定了不同高度截角下一個gps站所能測定大氣水汽含量的有效范圍，得出了濱江流域只需要3 4個gps接收機就足以反映流域水汽變化的結論。
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