| Autor: |
Brewer, Christopher D., Duncan, Bradley D., Barnard, Kenneth J., Watson, Edward A. |
| Zdroj: |
Journal of the Optical Society of America A: Optics, Image Science & Vision; March 1998, Vol. 15 Issue: 3 p736-747, 12p |
| Abstrakt: |
A rigorous method for modeling received power coupling efficiency (η_F/R) and transmitted power coupling efficiency (η_F/T) in a general-target-illumination ladar system is presented. For our analysis we concentrate on incorporating a single-mode optical fiber into the ladar return signal path. By developing expressions for both η_F/R and η_F/T for a simple, diffuse target, our model allows for varying range, beam size on target, target diameter, and coupling optics. Through numerical analysis η_F/R is shown to increase as the range to target increases and decrease as target diameter increases, and η_F/T is shown to decrease with target range. A baseline signal-to-noise ratio analysis of the system is also provided for varying illumination schemes. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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