| Autor: |
Guanhua Zhao, Qianwen Weng, Tong Guo |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems. |
| DOI: |
10.1117/12.2540385 |
| Popis: |
This paper presents a signal processing method based on continuous wavelet transform in our line-scan dispersive interferometric system. Our method enables us to extract phase information from the spectrum by applying continuous wavelet transform, which is more effective and reliable in analyzing non-stationary signal compared with FT transform. Experimental results obtained by measuring a step standard with a height of 1.806μm reveal that this method has high accuracy and a good performance over noise resistance, which makes it suitable for complicated in-line measurement condition. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
