摘要
对驻波管最小二乘法(LSM)进行了讨论和误差分析,并与双传感器传递函数法(TTP)进行了比较。结论表明,最小二乘法具有较高的精度,与双传感器传递函数法所得结果吻合甚好,并很好地解决了双传声器传递函数法存在的缺陷,可用于实际测量。
Least square method in the standing wave tube is discussed in this paper and its error is analysed in detail. It is shown that LSM has higher precision. Experiments have been done to compare the Least square method with TTF method. The results of the mew method are in good agreement with TTF, and the shortcomings of TTF are overcome.
出处
《噪声与振动控制》
CSCD
北大核心
2005年第6期64-66,共3页
Noise and Vibration Control
关键词
声学
驻波管
最小二乘法
误差分析
acoustics
standing wave tube
least square method （LSM）
error analysis
