雷达科学与技术Issue(3)：320-323,4.DOI:10.3969/j.issn.1672-2337.2015.03.020
基于超宽带采样保持器的数字接收机设计
Design of a Digital Receiver Based on Ultra-Wide Waveband SHA
马利祥 1向海生 1卢玉杰1
作者信息
- 1. 中国电子科技集团公司第三十八研究所，安徽合肥 230088
- 折叠
摘要
Abstract
The technology of direct RF sampling is a new trend of the digital receiver.Limited by ADC device,the application of this technology is not very popular in the receiver.Based on the architecture of SHA(sample and hold amplifier)+ ADC,this paper introduces a digital receiver that supports ultra-wide waveband input signal and implements direct sampling of RF signal.A brief introduction is given to the prin-ciple of the sample and hold amplifier.The system architecture of the direct RF sampling digital receiver is described and the sub-board of data acquiring is presented in detail.Combining the CHIPSCOPE,the analy-sis tool of FPGA,and the software of MATLAB,the digital receiver is tested and its features are analyzed. The results show that the features of the digital receiver can meet the need of regular application.The system design is simplified and the cost is reduced.关键词
直接射频采样/采样保持器/数据采集子板/数字接收机Key words
direct RF sampling/sample and hold amplifier/sub-board of data acquiring/digital receiver分类
信息技术与安全科学引用本文复制引用
马利祥,向海生,卢玉杰..基于超宽带采样保持器的数字接收机设计[J].雷达科学与技术,2015,(3):320-323,4.
