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Gunshot acoustic localization for military and urban security systems has long been an important topic of research. In recent years the development of independent Unmanned Ground Sensors (UGS), interconnected through Wireless Sensor Networks (WSN), performing distributed cooperative localization, has grown in popularity. This paper proposes an asynchronous method of gunshot localization, performed...
Gunshot acoustic localization for military and urban security systems has long been an important topic of research. In recent years the development of independent Unmanned Ground Sensors (UGS), interconnected through Wireless Sensor Networks (WSN), performing distributed cooperative localization, has grown in popularity. This paper considers a 2D Direction of Arrival (DOA) estimation method for compact...
Microphone arrays and, specifically, circular arrays have been used for sound source localization and multimedia applications for more than a decade. In recent years the development of compact arrays for implementation in Wireless Sensor Networks (WSN) has risen in popularity. This paper considers a 2D Direction of Arrival (DOA) estimation method for a compact circular array, equipped with additional...
Acoustic source localization has a variety of applications, from speech signal enhancement to mobile object tracking. Localization procedures applying lightweight algorithms are appealing for implementation in distributed embedded systems. This paper builds on our previous research of simplifying acoustic localization based on the Steered Response Power with Phase Transform (SRP-PHAT) algorithm and...
The application of wireless sensor networks (WSN) for the task of acoustic localization provides great opportunities for distributed cooperative tracking of sound sources in large areas. However WSNs are significantly more limited in terms of computational resources and power than typical computer systems. Therefore the methods applied for acoustic localization in WSN must be optimized for minimal...
Acoustic localization by means of sensor arrays has a variety of applications, such as environment monitoring and object tracking. These tasks are appealing for implementation on embedded systems, however large dataflows and computational complexity of multi-channel signal processing impede the development of such systems. This paper proposes a method of acoustic localization in distributed systems,...
This paper describes specific digital beamforming methods and prototype of the data acquisition system. Moreover, the detailed description of the beamforming and reception algorithms would explain the possible estimation criteria for given system. The modelling results and software radar prototype performance are presented. Concerning the use of spread spectrum waveforms with wideband beamforming...
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