TY - GEN
T1 - Implementation of underwater acoustic modem based on the OMAP-L138 processor
AU - Wang, Cong
AU - Zhang, Qunfei
AU - Yan, Zhenhua
AU - Han, Jing
AU - Lei, Kaizhuo
AU - Zhang, Lingling
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/15
Y1 - 2014/12/15
N2 - With the development of underwater acoustic (UWA) communication network technology and improvement of embedded digital signal processing chip, acoustic modem has received much attention recent years. By analyzing power consumption, board size, reliability and flexibility in application, we implement the acoustic modem based on the OMAP-L138 board. The modular algorithm is based on block-by-block processing. We used feedback buff from previous block as well as pre-data from next block to ensure the continuity of the entire frame signal. To match the A/D sampling frequency of integrated TLV320AIC23B codec, we proposed block-resampling algorithm based on polyphase filter. By analyzing the workload, an optimized algorithm of block resampling is put forward. The time complexity has been reduced by a factor of I or D. The acoustic modem proposed in this paper has been tested using data collected from lake experiment. The communication rate can reach 4kbps with BER performance of 10-3-10-4. The results of off-line processing indicate that high-speed, stable and real-time data transmission can be achieved by using the hardware and algorithm mentioned above.
AB - With the development of underwater acoustic (UWA) communication network technology and improvement of embedded digital signal processing chip, acoustic modem has received much attention recent years. By analyzing power consumption, board size, reliability and flexibility in application, we implement the acoustic modem based on the OMAP-L138 board. The modular algorithm is based on block-by-block processing. We used feedback buff from previous block as well as pre-data from next block to ensure the continuity of the entire frame signal. To match the A/D sampling frequency of integrated TLV320AIC23B codec, we proposed block-resampling algorithm based on polyphase filter. By analyzing the workload, an optimized algorithm of block resampling is put forward. The time complexity has been reduced by a factor of I or D. The acoustic modem proposed in this paper has been tested using data collected from lake experiment. The communication rate can reach 4kbps with BER performance of 10-3-10-4. The results of off-line processing indicate that high-speed, stable and real-time data transmission can be achieved by using the hardware and algorithm mentioned above.
KW - acoustic modem
KW - block-by-block processing
KW - OMAP-L138 Processor
KW - polyphase filter
UR - http://www.scopus.com/inward/record.url?scp=84922626329&partnerID=8YFLogxK
U2 - 10.1109/ICSPCC.2014.6986307
DO - 10.1109/ICSPCC.2014.6986307
M3 - 会议稿件
AN - SCOPUS:84922626329
T3 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
SP - 800
EP - 805
BT - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
Y2 - 5 August 2014 through 8 August 2014
ER -