@conference {uvigo:bias, title = {Bias analysis and removal of a microphone array based road traffic speed estimator}, booktitle = {European Signal Processing Conference (EUSIPCO)}, year = {2004}, address = {Vienna, Austria}, keywords = {microphone arrays, speed estimation, traffic monitoring}, author = {R. L{\'o}pez-Valcarce and D. Hurtado and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} }