SAILoc: A novel acoustic single array system for indoor localization

We have designed, implemented and evaluated the novel single array acoustic localization system SAILoc. The SAILoc system can interact with the commercial-off-the-shelf (COTS) smart phone and it is easier to deploy than multiple sensors' system. We also propose a robust time delay estimation (TDE) algorithm which is based on frequency domain (FD-TDE) and has an advantage over generalized cross-correlation phase thransform (GCC-PHAT) in an indoor environment. Meanwhile, based on multiple sensor information, we propose to use Fusion-based time delay estimation (FD-TDE) to reduce the reverberation interference. The SAILoc's experiment is operated in room and corridor. Our experiment demonstrated that although the SAILoc's room environment performance is better than the corridor, they all have a good localization performance and the error is no more than 0.6m.