利用OFDM实现短波宽带数据传输

Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings. Pub Date : 1900-01-01 DOI:10.1109/CEEM.2003.238533

Zou Zhaohui

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引用次数: 1

摘要

提出了一种基于正交频分复用(OFDM)实现高频宽带数据传输的调制解调器设计。为了减少多径衰落对短波信道的影响，设计采用了OFDM、带内频分集和turbo码技术。在抑制强共信道干扰的条件下，该调制解调器在带宽为125 kHz的高频信道上可以实现8、16和32 kb/s的数据速率传输。通过数字仿真给出了该调制解调器在典型高频信道中的性能。

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Implementation of short wave wideband data transmission by means of OFDM

The paper presents a modem design to implement HF wideband data transmission based on orthogonal frequency division multiplexing (OFDM). In order to reduce the multipath fading effect on the short wave channel, the design adopted OFDM, inband frequency diversity, and turbo code technologies. On condition that the intensive cochannel interference is suppressed, the modem can realize transmission at data rates of 8 kb/s, 16 kb/s and 32 kb/s on a 125 kHz bandwidth HF channel. The performance of this modem in a typical HF channel is also given by digital emulation.

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来源期刊

Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings.

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