| 基于OFDM的高频调制解调器研究 |
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| 引用本文： | 李景魁.基于OFDM的高频调制解调器研究[J].煤炭技术,2011,30(10). |
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| 作者姓名： | 李景魁 |
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| 作者单位： | 无锡商业职业技术学院,江苏无锡,214153 |
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| 摘 要： | 设计了一种基于正交频分复用技术,用于短波信道的调制解调器。该调制解调器以DSP为数字信号处理核心,可实时地进行OFDM调制和解调,并利用信道估计、符号同步等多种参数估计算法,提高该系统的误码率性能。实验测试表明该调制解调器可在带宽为3 kHz的短波信道上实现1 200 bit/s、2 400 bit/s、3 600 bit/s和4 800 bit/s的有效数据传输。
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| 关 键 词： | OFDM 调制解调 短波DSP |
Design of HF Modem Based on OFDM |
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| LI Jing-kui.Design of HF Modem Based on OFDM[J].Coal Technology,2011,30(10). |
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| Authors: | LI Jing-kui |
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| Affiliation: | LI Jing-kui(Wuxi Institute of Commerce,Wuxi 214153,China) |
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| Abstract: | Based on orthogonal frequency division multiplexing,the design of a kind of HF modem is proposed.In the system,DSP is utilized as the core of digital signal processing for real-time OFDM modulation and demodulation.Kinds of parameter estimation algorithm such as channel estimation and symbol synchronization are used for improving BER performance of the system.The experimental results demonstrates that the modem can realize data transmission by rate of 1 200 bit/s,2 400 bit/s,3 600 bit/s and 4 800 bit/s in H... |
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| Keywords: | OFDM modem shortwave DSP |
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