Award for Creativity in Engineering

工程创造力奖

• 批准号: 9019952
• 负责人: John Bowers
• 金额: $ 5.5万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-15 至 1992-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9019952&HistoricalAwards=false
• 关键词: Award; Creativity; Engineering

An ADC is a device which is used to sample an analog signal and converts it into a digital code proportional to its amplitude. Nyquist theory states that the sampling frequency must be at least twice the maximum frequency of the analog signal. Thus the speed of existing ADCs limit the application of digital electronics in systems that have wide bandwidth signals. There are applications which demand bandwidths that exceed several hundred megahertz. Exploratory developments of electrooptic analog-to-digital converters (ADCs) capable of operating at 1 GHz with 6-bit resolution have been reported. This bit and frequency range is of interest because existing silicon and gallium arsenide technology have not been demonstrated above this range. %%% The purpose of the proposed research is to develop a wide bandwidth electrooptic ADC which operates at 10 GHz with 6-bit resolution.

ADC是一种用于对模拟信号进行采样的设备 并将其转换成与其幅度成比例的数字代码。 奈奎斯特理论指出，采样频率必须至少为 模拟信号最大频率的两倍。因此，速度 现有ADC的不足限制了数字电子技术在 具有宽带信号的系统。有些应用 其需要超过几百兆赫的带宽。 电光模数转换器的探索性发展 能够在1 GHz下工作的6位转换器（ADC） 决议已经报告。该位和频率范围为 因为现有硅和砷化镓技术 在这个范围内还没有被证实。 %%% 这项研究的目的是开发一个广泛的 带宽电光ADC，工作在10 GHz，6位 分辨率