Effective Frequency Selection Algorithm for Bandpass Sampling of Multiband RF Signals Based on Relative Frequency Interval

摘要：

In design of software receiver, costs of AD converter is greatly decreased and data amount is largely reduced by using bandpass sampling. However, the interval of sampled signal in spectrum is ignored in related researches, especially in multiband RF signals sampling by single frequency. To solve the problem, we introduce RFI (Relative Frequency Interval) as one important criterion to evaluate performance of sampling frequency. Based on RFI, we propose and infer an effective selection algorithm to get the optimal sampling frequency. In application of GPS receiver, we implement the proposed algorithm with numerical method to get available sampling frequency, which directly determines data amount and the corresponding RFI value. Then according to actual demand, we can get the optimal sampling frequency.

关键词： bandpass sampling multiband RF signal sampling frequency relative frequency interval (RFI)

作者: Qi Wei Tian Jin Fei Yu

作者单位: School of Electronic Information Engineering Beihang University Beijing, P.R.China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 431-435

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）