Real-time Compression for Acoustic Array Time-Domain Data Navy SBIR FY2018.1 Sol No.: Navy SBIR FY2018.1 Topic No.: N181-067 Topic Title: Real-time Compression for Acoustic Array Time-Domain Data Proposal No.: N181-067-1206 Firm: PrimaComp Inc. 851 Maxwell Drive Niskayuna, New York 12309 Contact: William Pearlman Phone: (518) 522-7781 Web Site: http://www.primacomp.net Abstract: This proposal offers SPIHT compression for near-lossless and strictly lossless compression of acoustic array data. We show in tests on publicly available acoustic data that the requirements of 5:1 compression ratio and almost zero distortion are satisfied by 1D-SPIHT coding of the single stream output of the acoustic array. Because 1D-SPIHT has low complexity in addition to high efficiency, the coding-decoding latency is almost negligible. .Also proposed for testing is a two-dimensional SPIHT coder for inter-channel compression, if separate channel data are made available. In order to combat degradation in reception from an error-prone channel, we propose methods for building error-resilience and error-protection coding into the SPIHT code-streams . Benefits: One-dimensional data compression with high efficiency and nearly real-time execution is much sought after in several industries. We have already had SPIHT software integrated into data processing platforms in the medical, oil/gas exploration, and space exploration industries. We expect that a successful outcome of this project will add the defense industry to this list and fuel even greater opportunities for use of our software. Return