Comparison of the CAF-DF and sage algorithms in multipath channel parameter estimation
SAM 2008 - 5th IEEE Sensor Array and Multichannel Signal Processing Workshop
33 - 36
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In this paper, performance of the recently proposed Cross Ambiguity Function - Direction Finding (CAF-DF) technique is compared with the Space Alternating Generalized Expectation Maximization (SAGE) technique. The CAF-DF, iteratively estimates direction of arrival (DOA), time-delay, Doppler shift and amplitude corresponding to each impinging signal onto an antenna array by utilizing the cross ambiguity function. On synthetic signals, based on Monte Carlo trials, performances of the algoritms are tested in terms of root Mean Squared Error (rMSE) at different Signal-to-Noise Ratios (SNR). Cramer-Rao lower bound is included for statistical comparisons. Simulation results indicate the superior performance of the CAF-DF technique over SAGE technique for low and medium SNR values. © 2008 IEEE.
Direction of arrival
Radio direction finding systems
Room and pillar mining
Signal filtering and prediction
Wireless telecommunication systems
Cramer-Rao Lower bounds
Cross ambiguity function
Monte Carlo trials
Multichannel signal processing
Root mean squared-error
Space-alternating generalized expectation maximization
Signal to noise ratio
Published Version (Please cite this version)http://dx.doi.org/10.1109/SAM.2008.4606818
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