Deschênes Jean-Daniel, Potvin Simon, Ash Jean-Simon, Genest Jérôme
Centre d'Optique, Photonique et Laser, Université Laval, Québec, G1K 7P4, Canada.
Appl Opt. 2010 Sep 10;49(26):4883-9. doi: 10.1364/AO.49.004883.
This paper proposes the use of predictive analog-to-digital converters (ADC) to handle dynamic range issues in Fourier-transform spectrometers. Several predictive approaches are proposed, and one is implemented experimentally to show that the technique works. A system was implemented with 16 bit (13 bits effective) ADCs and digital-to-analog converters (DACs) operated at 8 bits to provide a comparison basis. Measurements of a blackbody at 900 °C performed using the setup show a 13 bit effective performance, limited by the input noise of the data acquisition card.
本文提出使用预测型模数转换器（ADC）来处理傅里叶变换光谱仪中的动态范围问题。提出了几种预测方法，并通过实验实现了其中一种方法以证明该技术可行。构建了一个系统，该系统采用16位（有效13位）ADC以及工作在8位的数模转换器（DAC），以提供一个比较基准。使用该装置对900℃的黑体进行测量，结果显示有效性能为13位，受数据采集卡的输入噪声限制。
