Title :
The use of sinusoidal frequency modulated pulses for low-Doppler detection
Author_Institution :
QinetiQ Ltd, Weymouth, UK
Abstract :
This paper describes in-water testing of the reverberation gain achievable with broadband, Doppler sensitive sinusoidal frequency modulated (SFM) transmissions. Theoretical predictions via the Q-function are compared to experimental results in shallow water using static and moving sonar platforms. The coherence of target echoes is examined through the use of an echo-repeater
Keywords :
Doppler effect; echo; frequency modulation; reverberation; sonar detection; Doppler sensitive SFM transmissions; Q-function; broadband SFM transmissions; echo-repeater; in-water testing; low-Doppler detection; moving sonar platforms; reverberation gain; shallow water; sinusoidal frequency modulated pulses; static sonar platforms; target echoes coherence; Bandwidth; Chirp; Doppler shift; Frequency modulation; Niobium; Pulse modulation; Reverberation; Scattering; Signal resolution; Sonar;
Conference_Titel :
OCEANS, 2001. MTS/IEEE Conference and Exhibition
Conference_Location :
Honolulu, HI
Print_ISBN :
0-933957-28-9
DOI :
10.1109/OCEANS.2001.968331
