Title :
Real-time adaptive array processing for underwater acoustic channel
Author :
Hung, Hsien-Sen ; Chang, S.H. ; Chen, S.-L. ; Ke, L.-S.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
We investigate the performance of Frost adaptive beamformer via computer simulations for QPSK signals transmitted over Rayleigh and Rice fading channels. Simulation results show that the Frost beamformer can still improve the signal-to-interference-plus-noise ratio, even over fading channels. On the other hand, we have built a prototype system which uses TMS320C30 DSP chip for the realization of the Frost beamformer. Preliminary experimental results show its promising effect
Keywords :
Rayleigh channels; Rician channels; adaptive systems; fading; quadrature phase shift keying; underwater sound; Frost adaptive beamformer; QPSK signals; Rayleigh fading channel; Rice fading channel; TMS320C30 DSP chip; adaptive array processing; real-time systems; signal-to-interference-plus-noise ratio; underwater acoustic channel; Acoustic propagation; Array signal processing; Computational modeling; Fading; Frequency; Interference; Oceans; Quadrature phase shift keying; Sensor arrays; Underwater acoustics;
Conference_Titel :
Underwater Technology, 1998. Proceedings of the 1998 International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
0-7803-4273-9
DOI :
10.1109/UT.1998.670101
