預報修正 的英文怎麼說
中文拼音 [yùbàoxiūzhēng]
預報修正
英文
forecast amendment- 預 : Ⅰ副詞(預先; 事先) in advance; beforehand Ⅱ動詞(參與) take part in
- 報 : Ⅰ動詞1 (告知; 報告) report; declare; announce 2 (回答) reply; respond; reciprocate 3 (答謝)...
- 修 : Ⅰ動詞1 (修飾) embellish; decorate 2 (修理; 整治) repair; mend; overhaul 3 (寫; 編寫) write;...
- 正 : 正名詞(正月) the first month of the lunar year; the first moon
- 預報 : [訊] forecast; forecasting; prediction
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Comprehensive correction of real - time flood forecasting
實時洪水預報綜合修正方法初探Results show that a three - stepwise weight function correction method is effective and applicable and can be spread in other basins. it can eliminate the outlier of rainfall data and improve the accuracy of flood forecast
計算結果表明,採用雨量觀測誤差三步權函數修正法是有效的,能準確剔除雨量資料的粗差,改善雨量資料的合理性,提高洪水預報的精度。Adaptive modification of the rolling force prediction
軋制力預報的自適應修正( 7 ) from analysis, the smg model with decaying recursion updating is the most suitable model for reservoir 10 day runoff forecast at liujiaxia and longyangxia. and neural network model is the next
( 7 )通過對比分析,認為加衰減遞推實時修正的smg模型是最適合黃河上游的中長期水文預報模型,神經網路次之。As a result, the studying aim of this paper is to establish a practical and complete system for the prediction of ship maneuvering motion, taking into account of the influence of the environmental factors, such as the wind, wave and current, establish a practical and complete system for the prediction of ship maneuvering motion. in this paper, the opengl virtual reality simulation technique is introduced into the field of ship maneuver and control, and using the mmg mathematical model, the three dimensional dynamic simulation system of the ship motion is established and good results are achieved. in the process of the system development, firstly, the maneuvering motion equations for ship in the still water are established, based on the mmg module mathematical model and serial experimental result
在系統開發過程中,首先採用mmg分離式數學模型及相關的系列化試驗結果,建立單槳單舵海洋運輸船舶在靜水中的船舶操縱運動方程,並編制計算程序,經與試驗結果比較,證實了計算結果的正確性;為了解mmg數學模型中模型參數變化對操縱性指數的影響程度,作者在上述已有程序基礎上,對有關模型參數進行偏移修正,探討了相應參數變化后的操縱性指數,對船舶操縱性指數對模型參數的靈敏度進行了詳細的分析與探討,所得結論與工程實際相吻合,具有實際應用價值,並為進一步提高船舶操縱性預報的精度打下了基礎;然後,在已有的船舶靜水操縱運動模型基礎上,考慮雙槳雙舵的影響,建立了內河雙槳雙舵船舶的操縱運動模型;最後,綜合考慮風浪流作用力的影響,進行了船舶的操縱運動模擬計算。Modified chaotic adding weight one - rank local - region forecasting for silicon content in molten iron of blast furnace
含量的修正混沌加權一階局部預報( 3 ) smg model is not only good at practicability but also information ability due to real time updating, which guarantees the precision of the model forecasts. and no matter what stage is, calibration or verification, and what kinds of runoff situation, most plentiful runoff or most shortage, very close forecast precision in each case is obtained
( 3 ) smg模型不但實用而且可以進行實時的修正,使其預報精度能夠得到較好的保證,且不論在率定期、還是在檢驗期、不論對特豐徑流預報,還是對特枯徑流預報,他們的精度都比較接近,說明模型具有一定的泛化性。The calculating circle is very near compared with the fact. and many physical diagnose quantities thus as high vertical movement, q - vector divergence, 0 - 6 km shear etc. all contact with the rainstorm
在降水場的模擬中,降雨帶的范圍與實況接近,強降水中心位置和強度略有偏差,通過修正意見對提高預報準確率會有很大幫助。And the last, some sea trial results show that the match among the main engine and propeller is slightly heavy for the real vessel construction. although the reasons are very complex, most of them can be resolved by the method of propeller trailing edge modification. because of lack of guidance in theory, the actual quantities of modification were very difficult to decided and lots of quarrels may be raised between the shipyard and the owner before
最後,針對實際船舶建造過程中,部分船舶的試航結果表現出來的機槳匹配稍重問題,雖原因比較復雜,但絕大部分可以採用螺旋槳隨邊修正的方法解決,因為沒有理論數據給予指導,很容易引起爭議,在具體修正的數量上較難卻定,其修正後的螺旋槳工況更難準確預報。First, the error transfer characteristic among subsystems at different space locations is analyzed, and the direct transfer characteristic from discrete standard measure space to the workpiece measure space under measured in measure system is proven. second, the error reconstruction condition and method of mapping from discrete standard measurement system to continuous standard measure space are analyzed. based on the measurement sample stationarity in limited distance, the prediction model ' s limited astringency and mensurability to the dynamic measuring error and the prediction error respectively are proven
分析了不同空間位置子系統間的誤差傳遞特性,證明了在測量系統中離散標準量值空間向被測量工件量值空間的直接傳遞性;分析了離散標準量系統向連續量值空間映射的誤差重構條件和方法;基於測量樣本的有限距離的平穩性,證明了預報模型對動態測量誤差的有限收斂性和預報誤差的可測度性,進而證明了以離散標準量值系統對被測工件預報修正的可行性和合理性。We are now exploring a method in theory to predict the vessel voyage performance of given propeller trailing edge modification
本文試圖探索一種方法,從理論上預報給定修正量對船舶航行性能的影響。The dual standard quantity ( the work piece and the discrete standard quantity ) mutual measuring and model verification methods are also proposed, which perfects the whole modifying process from data measuring, error separation, model establishment to real correction. after researching the discrete standard quantity system dynamic error separation technique, two error correction methods based on genetic algorithm and neural network mixed modeling technique are established. the two methods are the discrete standard quantity dynamic error direct / synchronous correction and prediction model correction ; the model ' s parameters and model ' s exercising method are also confirmed
設計了雙標準量值(工件和離散標準量)互比測量的模型驗證方法,完善了從數據測量、誤差分離、模型建立到實際修正的整個修正過程;研究了離散標準量系統動態誤差分離技術,建立了基於遺傳進化演算法與神經網路混合建模技術的兩種誤差修正方法? ?離散標準量動態誤差直接(同步)修正方法和預報模型修正方法,並確定了模型結構參數和模型訓練方法;分析了預報模型的多次預報性質,並得出了多次預報與多步預報的等效關系,確定了測量系統的有效預報范圍以及模型參數對泛化誤差的影響;進行了模型的對比實驗驗證和被測工件動態誤差修正試驗,成功地實現了任意二面角和圓分度的實時誤差修正。A real - time forecast model of irrigation schedule verified with the real - time data is established, incorporating suitable methods of monitoring soil moisture and predicting soil water for region
將提出的墑情監測方法及區域土壤水分預報方法,應用於構建整個灌區的實時灌溉預報模型之中,並在灌溉預報過程中進行實時修正。( 5 ) real time updating is quite important for good forecast. however, if there is no new information joining the input of updating model, the neural network updating will not only lose its effective force but also bring even worse results
( 5 )實時修正對預報模型很重要,但在沒有新資料信息輸入時,用神經網路作實時修正,反而會影響預報的效果。The author also gave the uncertainty of the prediction values in this paper according to bayes theorem. the method can be used to correct the original error model conveniently and effectively
該方法的優點是在利用預報過程中插入的標準量時,無須對所有數據重新建模就能方便而有效地實現對原有誤差模型的修正。To improve the accuracy of the model, the temperature signal detected behind roughing rolling unit is used as a feedback to modify the prediction
為了提高模型精度,作者在論文中提出引入粗軋機后的鋼坯溫度實時檢測信號作為反饋修正鋼坯溫度預報。Mm5 adjoint - model assimilation system not only can improve the initial field effectively and promote the coordination with the model but also can enhance the forecast on the precipitation and other elements. the assimilation of cdw has an improvement on quality of upper wind. the effect of direct numerical simulation with utilizing the cdw to amend the initial field gains the advantage over the one not
結果表明, mm5伴隨模式同化系統能有效改善初始場與模式的協調能力,提高模式對于降水場和其它要素場的預報;使用雲導風資料修正初始場后直接模擬的效果比未使用時直接模擬的效果要好,對部分區域的強降水預報精度有一定程度的改善;使用伴隨模式同化系統后,加入雲導風資料的同化試驗對其它要素的改善與直接同化常規資料的效果相比,改善優勢不明顯,但從各要素的誤差來看,對于風場的改善最好。The paper makes use of doppler radar data to mesoscale numerical model, through adjusting divergence fie ld, vertic al velo city fie id etc. to improve on initial field. the investigation results show that there is a improvement in the forecasting effects, precipitation position is closer to practicality
試驗結果表明,在中尺度數值模式中利用多普勒雷達觀測資料,對初始場進行修正,通過散度和垂直速度場等的調整,有效提高預報效果,使得雨區范圍和雨量更接近實況。For the study of freeze - up forecasting model in in inner mongolia reach, now it changed to combining theories and experiences from statistic model. now most of the freeze - up forecasting methods are based on combining theories and experiences, and then correcting properly with time
對于內蒙古河段封河預報模型的研究,經歷了從數理統計到理論與經驗相結合的階段,現行預報方法多是以理論與經驗相結合為基礎,並進行適當的實時修正。( 2 ) wavelet networks are introduced to gpc. several nonlinear gpc algorithms based on wavelet networks are given : a nonlinear gpc base on predictive error compensation is designed, in which wavelet network is used to model the predictive error ; a new structure of multi - step predictive controller is constructed in which wavelet networks are used to identified the nonlinear directly ; a single - step predictive controller is given, in which a wavelet networks are used to estimate the parameters of the linear time - varying system. ; an a implicit gpc for nonlinear system is presented, in which wavelet networks are used to estimated the time - varying parameters of the generalized predictive controller
( 2 )將小波網路與非線性廣義預測控制相結合,設計了多種基於小波網路的非線性廣義預測控制:考慮到建模誤差對多步預報的影響,引入小波網路估計預報誤差,對輸出預報進行修正,提高了控制性能且不影響系統的穩定性;利用小波網路構造多步預測器,設討了非線性系統多步預測控制演算法;利用小波網路逼近非線性系統廣義預測控制器的時變參數,設計了非線性系統隱式廣義預測控制器;利用小波網路辨識時變系統參數並直接用於構造控制器,設計了非線性系統單步預測控制演算法。分享友人