Güldoğan, M. BurakArıkan, Orhan2016-02-082016-02-082008-07http://hdl.handle.net/11693/26856Date of Conference: 21-23 July 2008Conference name: 2008 5th IEEE Sensor Array and Multichannel Signal Processing WorkshopIn 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.EnglishAcoustic intensityAcoustic microscopesAmplitude modulationAntenna accessoriesAntenna arraysChannel estimationChemical sensorsControl theoryCramer-Rao boundsDirection of arrivalEstimationFluorescenceMissile basesModel structuresParameter estimationRadio direction finding systemsRoom and pillar miningSemanticsSensor arraysSensorsSignal filtering and predictionSignal processingWireless telecommunication systemsCramer-Rao Lower boundsCross ambiguity functionDF techniquesDirection-findingDoppler shiftingMonte Carlo trialsMulti-path channelsMultichannel signal processingNoise ratiosRoot mean squared-errorSAGE algorithmsSimulation resultsSNR valuesSpace-alternating generalized expectation maximizationStatistical comparisonsSuperior performanceSynthetic signalsTime delayingSignal to noise ratioConference Paper10.1109/SAM.2008.4606818