01929nas a2200241   4500008004100000020001800041245009400059210006900153260002700222300001200249520123000261653001101491653000801502653001701510653001601527653001101543653001601554100001701570700001801587700001601605700002001621856004601641       2006                        eng d  a1-59593-343-300aThe design and implementation of a self-calibrating distributed acoustic sensing platform0 adesign and implementation of a selfcalibrating distributed acous  aNew York, NY, USAbACM  a71–843 aWe present the design, implementation, and evaluation of the Acoustic Embedded Networked Sensing Box (ENSBox), a platform for prototyping rapid-deployable distributed acoustic sensing systems, particularly distributed source localization. Each ENSBox integrates an ARM processor running Linux and supports key facilities required for source localization: a sensor array, wireless network services, time synchronization, and precise self-calibration of array position and orientation. The ENSBox's integrated, high precision self-calibration facility sets it apart from other platforms. This self-calibration is precise enough to support acoustic source localization applications in complex, realistic environments: e.g., 5 cm average 2D position error and 1.5 degree average orientation error over a partially obstructed 80x50 m outdoor area. Further, our integration of array orientation into the position estimation algorithm is a novel extension of traditional multilateration techniques. We present the result of several different test deployments, measuring the performance of the system in urban settings, as well as forested, hilly environments with obstructing foliage and 20-30 m distances between neighboring nodes.10aamibio10aasr10abioacoustics10acalibration10aensbox10ameasurement1 aGirod, Lewis1 aLukac, Martin1 aTrifa, Vlad1 aEstrin, Deborah  uhttp://dx.doi.org/10.1145/1182807.1182815