SC-FDE声学调制解调器的实时收发器实现

Proceedings of the 11th International Conference on Underwater Networks & Systems Pub Date : 2016-10-24 DOI:10.1145/2999504.3001110

Lin Li, Qunfei Zhang, Lifan Zhang, Yang Zhang

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引用次数: 0

摘要

研制了一种单载波频域均衡(SC-FDE)实时水声调制解调器。信道估计在时域进行以提高精度，均衡在频域进行以降低复杂度。该系统是在浮点OMAPL138平台上实现的。通过对算法和程序调度的优化，保证了调制解调器的高数据速率和实时性。我们已于2016年6月在一个湖泊实验中对设计的系统进行了测试。在5公里的距离上，调制解调器在复杂环境下实现了9600 bps的实时原始数据速率，未编码误码率为10−3。

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Real-time transceiver implementation for SC-FDE acoustic modems

We have developed a real-time underwater acoustic modem with single-carrier frequency domain equalization (SC-FDE) transmission. Channel estimation operates in the time domain to improve accuracy, and equalization operates in the frequency domain to reduce complexity. The system is implemented on the floating-point OMAPL138 platform. Through optimization in the algorithm and program scheduling, the high data rate and real-time performance of the modem is guaranteed. We have tested the designed system in a lake experiment in June 2016. At a distance of 5 km, the modem achieved real-time raw data rates of 9600 bps with uncoded bit-error rates of 10−3 in the complex environment.

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Proceedings of the 11th International Conference on Underwater Networks & Systems

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