Title :
The active echo model and resolution analysis in wideband processing of underwater acoustic signals
Author :
Jin, Yuhong ; Zhang, Jingyuan ; Li, Yuanxiang
Author_Institution :
State Key Lab. of Software Eng., Wuhan Univ., China
Abstract :
This paper discusses the conditions which an active wideband echo model in the active echo location should satisfy in a strict sense. Then the analysis of a wideband signal´s velocity and distance resolutions is proposed. It is proved that the duration and the carrier frequency of the transmitted signal determine the resolutions. Finally, the cosine signal with a Gauss envelope is analyzed by the method proposed and some results are given. The work provides an efficient analyzing tool for wideband signal processing
Keywords :
Gaussian processes; acoustic signal processing; correlation methods; echo; signal resolution; underwater sound; wavelet transforms; Gaussian envelope; active echo location; active wideband echo model; carrier frequency; cosine signal; point scatterer; resolution analysis; transmitted signal duration; underwater acoustic signals; wavelet transform; wideband correlation processing; wideband processing; wideband signal distance resolution; wideband signal processing; wideband signal velocity resolution; Acoustic scattering; Capacitance-voltage characteristics; Frequency; Gaussian processes; Signal analysis; Signal processing; Signal resolution; Transmitters; Underwater acoustics; Wideband;
Conference_Titel :
OCEANS, 2001. MTS/IEEE Conference and Exhibition
Conference_Location :
Honolulu, HI
Print_ISBN :
0-933957-28-9
DOI :
10.1109/OCEANS.2001.968082
