Abstract
A series of automatic sonic boom monitors has been developed for unattended field use. These monitors are referred to as the boom event analyzer recorders (BEAR). The BEAR captures the full waveform of sonic booms while excluding other acoustic events. The signatures are stored in a digital format for easy retrieval and analysis. The first units, developed in 1986, were battery powered and operated up to 10 days in the field and stored 100 normal duration sonic booms. In 1992, a second version was developed. An upgraded version developed in 1992 included auxiliary solar power, improved power management, remote communication link via cellular phones, increased memory storage, direct data retrieval to laptop computer, enhanced user interface, autocalibration, power history data, and summary report of stored signatures. These BEAR systems have been used successfully in several sonic boom field studies. This article summarizes the data collection algorithms, the operation procedures, data storage and retrieval routines, and the hardware and software of the BEAR systems in order to understand how the U.S. Air Force currently measures sonic booms.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
