Real-time wideband DDC based on parallel architecturein synthetic instrument

摘要：

Restricted by the processing speed of device, bandwidth and filter performance of Wideband Digital IF Process are hard to achieve a breakthrough. In this paper, to solving the problems during wideband digital IF process, a parallel processing architecture is presented to efficiently lower the sample rate and process cost through multiple channels of parallel process. This paper deduces the digital down conversion technique principle, analyzes output phase difference of multiple Numerical Control Oscillator ‘s (NCO) output and error factor for reducing SNR, and provides the index distribution basis for the specific engineering design. Finally, the correctness is verified by the experimental platform.

关键词： wideband digital IF process DDC phase difference quantization effects synthetic instruments.

作者: Guo Lianping Tian Shulin Wang Zhigang

作者单位: School of Automation Engineering,University of Electronic and Science Technology of China,Chengdu 610054,China

会议类型: 国际会议

会议名称: 2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

会议地点: 成都

会议语种:英文

页码: 924-927

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）