Kuya Takami Tomonari Furukawa Makoto Kumon Gamini Dissanayake Non-Field-of-View Acoustic Target Estimation in Complex Indoor Environment. 577-592 2015 FSR https://doi.org/10.1007/978-3-319-27702-8_38 conf/fsr/2015 db/conf/fsr/fsr2015.html#TakamiFKD15