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http://dx.doi.org/10.5515/KJKIEES.2011.22.5.501

Compensation of Timing Offset and Frequency Offset in the Multi-Band Receiver with Sub-Sampling Method  

Lee, Hui-Kyu (Department of Electronic Engineering, Chungbuk National University and RICIC(Research Institute of Computer, Information Communication Center) of Chungbuk National University))
Ryu, Heung-Gyoon (Department of Electronic Engineering, Chungbuk National University and RICIC(Research Institute of Computer, Information Communication Center) of Chungbuk National University))
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.5, 2011 , pp. 501-509 More about this Journal
Abstract
Software defined radio(SDR) has a goal that places the analog-to-digital converter(ADC) as near the antenna as possible. But current technique actually can't do analog-to-digital converting about RF band signals. So one method is studying that samples RF band signals to IF band. One of the ways Sub-Sampling technique can convert signals from RF band to IF band without oscillator. If Sub-Sampling technique is used, over 2 bands can convert signals from RF band to IF band. But due to the filter performance in RF band, it is possible to generate interference between signals that is converted in low frequency band. The effect degrades performance. In this paper, we propose one method that uses time division multiplexing(TDM) method as a solution to avoid interference between signals. By doing TDM and Sub-Sampling at the same time that method can get signals without large changes of structures.
Keywords
Sub-Sampling; TDM; SDR; Multi-Band Receiver; Offset Compensation;
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