一种窗片自校准的光谱检测方法及系统
By employing a window-based self-calibrated spectral detection method, nonlinear drift is separated using a reference plate and wavelet transform. Combined with quadratic fitting and dynamic threshold adjustment, the baseline drift problem caused by variations in glass window thickness and coating is solved, thereby improving the accuracy of spectral detection and the precision of textile composition detection.
CN121476111BActive Publication Date: 2026-07-17BEIJING YIXINGYUAN PETROCHEMICAL TECHNOLOGY CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING YIXINGYUAN PETROCHEMICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-12-19
- Publication Date
- 2026-07-17
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Figure CN121476111B_ABST
Abstract
本发明提出一种窗片自校准的光谱检测方法及系统，属于光谱检测技术领域。首先根据待校准窗片选择参比片，然后获取参比片标准光谱、参比片实测光谱以及使用待校准窗片获得的实际光谱检测数据，再基于参比片标准光谱、参比片实测光谱对实际光谱检测数据进行迭代校准，最后保存迭代校准后的光谱数据作为光谱检测结果。本发明能够消除窗片厚度偏差等线性干扰，提高漂移成分提取的精准度；兼顾和平衡局部拟合优势与全局分段处理能力，至少在一定程度上克服现有导数法、迭代多项式拟合法等方法出现的易受噪声干扰以及容易出现过拟合或欠拟合的问题，最终保证非线性基线漂移的校准效果。
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