Multi-Signal Distinguish Based on Pressure-Gradient Vector Transducer
Yang Shi · Measurement & Control Technology · 2006
Vector transducer can provide velocity information of the incident wavefield besides of the pressure.Due to this characteristic,the direction of arrival(DOA) can be estimated from single vector transducer.But in traditional signal processing of vector transducer,only advantage of more information is considered.A new method using the correlation of pressure and particle velocity to estimate DOA of uncorrelated signal by single pressure-gradient vector transducer is presented.Results of simulation experiment and lake experiment show that the proposed method can distinguish double uncorrelated signal correctly and efficiently.