Abstract : according to working characteristics of the mechanical construction system of cement concrete pavement , this paper presents the mathematical model of this system by applying the theory of stochastic service system to describe the motion law of the mechanical construction system 文摘:根據高等級公路水泥砼路面機械化施工工藝,利用隨機服務系統理論,提出了水泥砼路面機械化施工系統的數學模型,動態地描述了水泥砼路面機械化施工系統機械運行的一般規律
In this thesis , the multi - channel sharing system is considered as a stochastic service system . based on the steady state solution of the birth and death process which state space is a limited set , utilized m / m / n / n / m queue model , the call congestion ratio formula and the channel utilization ratio formula fitting to the limited user system are derived . drawing support from the visual data analyzing function of the software matlab , the value divergence between the formulas and the corresponding one fitting to the infinite user system are compared 本文將多信道共用通信系統視為一個隨機服務系統,根據有限狀態生滅過程的穩態解,利用m m n n和m m n n m兩類排隊模型,分別推導出了無限用戶和有限用戶兩類多信道共用系統的呼損率公式和信道利用率公式;借助于matlab的可視化數據分析功能,比較了這兩組公式在數值上的差異;指明了兩組公式的適用條件。
In this thesis , the mcs of the multi - channel sharing system for limited users is achieved . the simulation sequence has not only confirmed that the optimal configuration methods obtained from theory model is reliable , but also supplied another convenient and effective method to make the system analysis . the more important significance of mcs is to reflect the running state of the stochastic service system completely and visually 文中借助于matlab軟件,實現了有限用戶多信道共用系統的蒙特卡羅仿真,仿真結果不但印證了根據理論模型得出的系統優化配置方法的可靠性,而且實質上提供了進行系統分析的另一種方便而有效的方法, mcs的更為重要的意義還在于通過仿真全面而直觀地反映隨機服務系統的運行狀況,可以據此分析和改進系統使之逐步完善。