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| 多信号源方向和频率估计中通道失配和阵元互耦的一次性补偿 | |
| 引用本文： | 王学礼,李舜酩,陈仲仪,俞靖.多信号源方向和频率估计中通道失配和阵元互耦的一次性补偿[J].电子与信息学报,2000,22(1):28-34. |
| 作者姓名： | 王学礼 李舜酩 陈仲仪 俞靖 |
| 作者单位： | 1. 西安交通大学机械工程学院,西安,710049 2. 西北工业大学,西安,710072 3. 浙江大学机械系,杭州,310027 |
| 基金项目： | 浙江省自然科学基金,项目编号:593049 |
| 摘 要： | 本文分析了空间谱估计中多信号源方向和频率估计中通道失配和阵元互耦导致系统性能下降的机制。克服了现有矫正方法只能针对单频信号补偿某个影响因素的局限性,提出了通道失配和阵元互耦的综合补偿新技术,大大提高了误差矫正的精度。首次在同时估计多信号源方向和频率估计中应用误差补偿技术。文中方法简便易行,消声室声学实验证明了该方法是成功的。 |
| 关 键 词： | 空间谱 方向频率估计 矫正 |
| 收稿时间： | 1998-6-11 |
| 修稿时间： | 1998-06-11 |
CALIBRATION OF CHANNEL MISMATCHING AND SENSOR COUPLING IN DIRECTION AND FREQUENCY ESTIMATIONS |
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| Wang Xueli,Li Shunming,Chen Zhongyi,Yu Jing.CALIBRATION OF CHANNEL MISMATCHING AND SENSOR COUPLING IN DIRECTION AND FREQUENCY ESTIMATIONS[J].Journal of Electronics & Information Technology,2000,22(1):28-34. | |
| Authors: | Wang Xueli Li Shunming Chen Zhongyi Yu Jing |
| Affiliation: | Mechanical Engineering Department Xi 'an Jiaotong University Xi 'an 710049;Northwest Polytechnic University Xi 'an 710072;Mechanical Engineering Department Zhejiang University Hangzhou 310027 |
| Abstract: | In this paper, the mechanism of the performance degration due to channel mismatching and sensor coupling in azimuthms and frequencies is analyzed. A new comprehensive calibration method that can compensate error by a known sound source is proposed. The method is easy to be implemented and the results of acoustic experiments in anechoic room show that offered method is effective. |
| Keywords: | Spatial spectrum Estimation of azimuthms and frequencies Calibration |
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