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This paper proposes a method that solves the problem of geometric calibration of microphone arrays. We consider a distributed system, in which each array is controlled by separate acquisition devices that do not share a common synchronization clock. Given a set of probing sources, e.g. loudspeakers, each array computes an estimate of the source locations using a conventional TDOA-based algorithm....
Acoustic sensing is expected to have a wide variety of practical applications. Sensing of human walking based only on passive acoustic information was studied experimentally. A simple microphone array consisting of four omnidirectional microphones and a common methodology of signal processing were employed to detect the positions of footsteps. The performance of the system was examined by evaluating...
Target signal is measured by acoustic sensor with the character of time-delay and bearing-only. The problem of target locating and time-delay registration can be solved by composing sensor network. A passive acoustic sensor network time-delay probabilistic localization algorithm is presented in this paper. Firstly, two sensor measures can be chosen that intersection angle is closed to 90?? to get...
This paper proposes an efficient dynamic localization algorithm in the active beacon sensor space for the precise localization of a mobile robot. The design and implementation of the localization system is based on the use of active beacon systems, each of which is composed of an RFID receiver and an ultrasonic transmitter. The RFID receiver obtains the synchronization signal from the mobile robot...
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