Title :
A kind of PSK space-time receiver based on beam diversity technology
Author :
Chen Yilong ; Su Wei ; Sun Haixin ; Han Jing
Author_Institution :
Key Lab. of Underwater Acoust. Commun. & Marine Inf. Technol., Xiamen Univ., Xiamen, China
Abstract :
A PSK space-time receiver based on beam diversity technology is proposed. The receiver combined the adaptive beam forming technology based on training sequence with multi-channel equalizer. Channel estimation method is used to obtain the current multi-path structure. Then a set of beams pointing to different incident directions of multi-path signals are formed in order to obtain the SNR gain and decrease ISI. Then space diversity method is used to combine the outputs of these beams, and the diversity gain is finally obtained. Simulation results with a 12-element array show that: in the case of complex multi-path channel structure, JPAM receiver get 3-4dB SNR gain compared to the PSK receiver which only used the adaptive beamforming technology.
Keywords :
acoustic receivers; array signal processing; channel estimation; diversity reception; multipath channels; phase shift keying; space-time adaptive processing; PSK space-time receiver; adaptive beam forming technology; beam diversity technology; channel estimation method; multichannel equalizer; space diversity method; training sequence; Acoustic beams; Array signal processing; Diversity methods; Educational technology; Equalizers; Marine technology; Phase shift keying; Space technology; Underwater acoustics; Underwater communication; Beam Diversity; Beamforming; Multipath signals; Underwater acoustic communication;
Conference_Titel :
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6347-3
DOI :
10.1109/ICCET.2010.5485684
