A New Measurement Method for Group Delay of Frequency-Translating Devices Based on Software Defined Radio technology

摘要：

A precise measurement for the group delay of Frequency-Translating Devices (FTD) is always a difficult problem in measurement field.It almost has no choice but the modulation method for measuring group delay especially the group delay of FTD which cant accept the other local oscillator. To resolve the problem that a precise measurement method for group delay of FTD,a new double-frequency phase difference method has been put forward based on software defined radio technology (SDR). This method is especially suitable for measuring group delay of FTD which cant accept the other local oscillator. The formula of the new method is deduced in detail in this paper. This paper concentrates on two aspects of the practice system: the design and the measurement method. The simulation shows the accuracy of this method is better than the traditional modulation method by 1 order magnitude.

关键词： Group Delay FTD SDR Double-Frequency Phase Difference Method

作者: Changjun Yu Yunyun Chen

作者单位: Research Institute of Electronic Engineering,Harbin Institute of Technology,Weihai,264209,China Research Institute of Electronic Engineering,Harbin Institute of Technology,Harbin,150001,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 694-699

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）