摘要
对气固流化床压力脉动时间序列进行混沌特性分析 ,并提出不同流型状态的转变对应着几个混沌参数的变化。进一步 ,基于Shannon互信息理论 ,定义了信息传输速率 ,通过对不同探头之间得到的信息传输速率的讨论 。
Chaotic characteristics of a gas solid fluidized bed are analyzed using time series of pressure fluctuation in a gas solid fluidized bed.The basic idea of the chaos analysis proposed is that transitions between different fluidization regimes can be assessed in relation to a set of chaos invariants.In addition,based on the concept of mutual information in Shannon information theory,the information transport rate is defined to investigate the dependence relation between pressure fluctuation time series in the reconstruction phase space at two different positions in the fluidized bed.On the basis of the results of the information transfer rate (ITR) between the measured time series at dual different probes,the authors argue that information is transferred upwards and downwards in the bed.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2002年第6期596-599,共4页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金 (60 0 750 0 3)
