Ultrasonic Signal Delay Determination For Distance Estimation In Underwater Space
Tugba Ozge Onur, Rifat Hacioglu, None None
proceeding (Uluslararası, Hakemli) | Yazar(lar): Tugba Ozge Onur, Rifat Hacioglu, None None | Yıl: 2017 | Dergi/Kurum: 2017 25TH SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU) | İndeks: WOS.ISTP | Anahtar Kelimeler: underwater space, time delay estimation, distance estimation — Özet: Reverberation a
Reverberation and multipath propagation affect the accuracy of time of flight (TOF) estimation in confined underwater medium. In this paper, time delay has been estimated by obtaining the transmitted signal and first echo signal from measured signal acquired by using a wideband transducer with 5 MHz central frequency. Cross-correlation (CC) and generalized cross-correlation (GCC) methods have been applied to the obtained signals and their performances have been compared. The results show that GCC method has better performance for time delay estimation in confined underwater medium where multipath propagation and reverberation are severe.