Combined error calibration technique with experiment for frequency-space spectrum estimation

被引：0
|
作者：
Wang, Xueli [1 ]
Li, Genqian [1 ]
Tan, Yushan [1 ]
Yu, Jing [1 ]
机构：
[1] Xi'an Jiaotong Univ, Xi'an, China
来源：
Shengxue Xuebao/Acta Acustica | 2000年 / 25卷 / 04期
关键词：
Calibration - Errors - Frequencies - Sensors - Spectrum analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The mechanism of the performance degradation for space-frequency spectrum estimation due to channel mismatching and sensor coupling was analyzed. A new comprehensive calibration method that can compensate channel mismatching and sensor coupling was proposed. This method improves the calibration precision greatly. It is applied to estimate directions and frequencies simultaneously. An important conclusion that these influential factors would not affect frequency estimation was drawn. This method is easy to be implemented and the results of acoustic experiments in anechoic room show that this method is effective.
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页码：371 / 376
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