Carrier Frequency Offset and I/Q imbalance estimation circuit RTL design for OFDM direct conversion receivers

In this paper, we present a model-based register transfer level (RTL) design of a simple joint parameter method for carrier frequency offset and I/Q imbalance estimation. The estimation scheme is based on a proposed algorithm that uses only two short training symbols for faster estimation. The simpl...

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Main Authors: de Leon, F.A., Lanante, L.A., Kurosaki, M., Ochi, H.
Format: Conference Proceeding
Language:English
Subjects:
Carrier Frequency Offset
Circuits
Field programmable gate arrays
FPGA
Frequency conversion
Frequency estimation
I/Q Imbalance
Least squares approximation
Least Squares Estimate
Low pass filters
OFDM
RTL
Signal design
Signal processing algorithms
Wireless communication
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Lanante, L.A.
Kurosaki, M.
Ochi, H.
description In this paper, we present a model-based register transfer level (RTL) design of a simple joint parameter method for carrier frequency offset and I/Q imbalance estimation. The estimation scheme is based on a proposed algorithm that uses only two short training symbols for faster estimation. The simple yet robust algorithm is then optimized for field programmable gate array (FPGA) implementation. Simulation results show that the performance of the 16-bit fixed-point system approximates that of the ideal performance of the estimation algorithm.
doi_str_mv 10.1109/ISPACS.2009.5383869
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subjects Carrier Frequency Offset
Circuits
Field programmable gate arrays
FPGA
Frequency conversion
Frequency estimation
I/Q Imbalance
Least squares approximation
Least Squares Estimate
Low pass filters
OFDM
RTL
Signal design
Signal processing algorithms
Wireless communication
title Carrier Frequency Offset and I/Q imbalance estimation circuit RTL design for OFDM direct conversion receivers
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