cyclical method 中文意思是什麼
cyclical method
解釋
循環法-
Then the paper investigated the regularity of different oil indices using time series statistical analysis method, which suggested that there are some regular components in it, including long - term secular trend, seasonal component and long - term cyclical component. the irregular component also plays an important part in it, mainly including the policy of opec, war, all kinds of international convention for the prevention of pollution from tankers and so on. and then a study of simulation and forecasting performance of arima time series model was conducted to crude oil indices, evidence shows that arima model performs better, especially for short - term forecasting
在此基礎上，本文以時間序列分析作為基礎研究手段，以德國海運費率指數公布的1980年1月至1999年12月的四類油運費率指數為研究對象，分析了四類油運費率指數的長期變化趨勢、季節變化規律、長期周期循環變化規律和不規則變化規律，並應用arima時間序列模型對160000dwt以上的原油運費率指數進行了短期預測，取得了較好的預測效果。 -
The improved cyclical function method is analyzed quantitatively through using the theory of the equivalent enthalpy drop and the real - time thermal consumption analysis can done
並應用等效焓降理論對循環函數的定量分析加以改進，進行了耗差分析。完善了循環函數法在機組局部定量計算分析的方法。 -
Its concrete method is : firstly, precondition the program code. secondly, collect information which will be put use to simulate. lastly, make use of the information collected to simulate to compute, and associate with the controlled object ’ s program module to carry out the multi - cyclical closed - loop simulation
它的實現過程是:先對控制計算程序代碼進行預處理，接著提取程序代碼的結構信息和變量信息，最後利用提取的信息模擬代碼做控制計算，並調用受控對象程序模塊，得到反饋信號變量的實時值，實現多周期閉環的控制計算模擬。 -
Secondly, according to the requirement of the parametric sensitivity analysis, the method based on orthogonal experiment is chosen to cope with the difficulty of obtaining the sensitivity analysis through the partial derivative of explicit function. and it also overcomes the traditional single factor cyclical method ' s shortcoming ? impossibility to analysis interactional factors. furthermore, some significative conclusions are acquired from the sensitivity analysis
其次根據軌跡優化問題靈敏度分析的需要，選取基於正交試驗的靈敏度分析方法，解決了軌跡優化問題沒有顯函數，無法通過求其偏導數獲得靈敏度的難點，同時克服了傳統的單因素輪換法對該類問題進行靈敏度分析帶來的弊端? ?無法對有相互作用的因素進行靈敏度分析，並通過對軌跡優化問題進行靈敏度分析，得出了一些有益的結論。 -
This paper studies the helicopter, the propeller - driven aircraft and the turbofan jet airplane echo modulating feature parameter model and analyses the echo signal feature. it gains the target echo ’ s the cyclical modulation feature by using the complex ar frequency range bispectrum slice. because traditional method in extraction airborne radar ’ s radiant signal feature time has certain insufficiency, this paper proposes the approximate entropy and the norm entropy as the passive feature parameter in the airplane
由於傳統方法等在提取機載雷達輻射源信號特徵的時候存在著一定的不足，本文提出把近似熵和范數熵作為飛機目標識別的無源特徵參數，給出了提取相應特徵熵的演算法，實現對機載雷達輻射源信號的識別，通過和機載雷達類型的匹配，實現對目標的識別。 -
On the base of the original cyclical function method, a general heater model is presented and cyclical function method is improved considering actual operating characteristics of thermodynamic system
在傳統循環函數的基礎之上，根據實際熱力系統運行的特點，建立了通用加熱器數學模型，並對循環函數法進行了改進。
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