By analyzing structure mathematical model which has solved by optimization method of mixed discrete variable (MDOD) of steel pole was built.
通过结构分析建立了钢管塔结构优化的数学模型，并利用混合离散变量优化方法MDOD进行求解。
参考来源 - 多边形插接式钢管塔的结构优化设计By modeling the timing error process as a discrete time, discrete variable Markov process, the steady-state probability distribution under Rayleigh fading radio channel is obtained, and the results are confirmed by computer simulations.
通过将定时调整过程等效为一时间离散变量离散的齐次马尔可夫链．导出了瑞利衰落下该环路定时误差的稳态概率分布．并对该结果进行了计算机仿真验证。
参考来源 - 期刊学术社区·2,447,543篇论文数据，部分数据来源于NoteExpress
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