### Kalman滤波技术校正电感耦合等离子体原子发射光谱分析中严重重叠的谱线干扰

1. 中国科学院长春应用化学研究所
• 发布日期:1993-03-15

### Resolution of closely spaced lines with kalman filtering in inductively coupled plasma atomic emission spectrometry

YANG JINFU;PIAO ZHE XIU;ZENG XIANJIN;CHEN XINHAI;ZHANG ZHAOYONG;GUAN QIUHUO

• Published:1993-03-15

Effects of some factors on the performance of a Kalman filter in discrimination of closely spaced overlapping signals were investigated. The resoln. power of the filter for overlapping lines can be strengthened by reduction of the step size in scans. The min. peak separation of two lines generally equals two to three times the step size in scans. Significant difference between the profiles of the anal. and interfering lines and multiple lines from matrix in the spectral window of the anal. line are very helpful for the Kalman filter to discern closely spaced anal. and interfering signals correctly, which allow the filter to resolve the line pair with very small peak distance or even the entirely coincident lines.1