【摘要】 介绍了符号序列分析中的二进制划分、直方图、Shannon熵、欧几里得范数、高阶矩等概念,在两种试验汽油机处于热怠速工况时,运用上述概念对HC排放信号进行分析和评价。更多还原

【Abstract】 The ideas of binary partition, symbolic series bar chart, Shannon entropy, Euclid number and high rank square are introduced based on the symbolic time series analysis method. At phase of idle speed the HC emission signals of tailpipe exhaust gas from the two kinds of gasoline engines are analyzed and (evaluated) by the ideas presented above.更多还原