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
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/26856
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.
Showing items related by title, author, creator and subject.
Kutay, M.Alper, Ozaktas Haldun, M.; Onural Levent, Arikan Orhan (1995)The ordinary Fourier transform is suited best for analysis and processing of time-invariant signals and systems. When we are dealing with time-varying signals and systems, filtering in fractional Fourier domains might allow ...
Performance analysis of cross ambiguity function-Direction finding technique in multipath environments Güldoǧan, M.B.; Arikan, O. (2008)In this paper, recently proposed Cross Ambiguity Function Direction Finding (CAF-DF) array signal processing technique, which make use of the cross ambiguity function calculation, is compared with the MUltiple SIgnal ...
Optimal signaling and detector design for power constrained on-off keying systems in Neyman-Pearson framework Dulek, B.; Gezici, S. (2011)Optimal stochastic signaling and detector design are studied for power constrained on-off keying systems in the presence of additive multimodal channel noise under the Neyman-Pearson (NP) framework. The problem of jointly ...