Abstract
The technology of acoustic distance-measurement by measuring the flying-time of the sound wave by known flying-velocity, provides a good-potential method for measuring distance.The paper discusses a acoustic distance-measurement system.The system, whose signal source is sine-wave, determines fly-time of sound wave between distance to be measured known flying-velocity by correlation analysis,and calculates the distance indirectly by the function-relation between the fly-time and distance measured.The method of determining flying-time using correlation analysis improve the anti-jamming ability and practicability of the acoustics distance-measurement system.
In the paper, the measurement principle and the system constitutes are introduced in detail, and so are the principle diagram and hardware design of different parts.Furthermore the software design of the acoustics distance-measuring system is explained detail.
Keyword acoustic distance-measurement system correlation analysis sine-wave signal