一种用于超窄带数字无线调制解调器的频偏补偿方法

2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754) Pub Date : 2004-09-05 DOI:10.1109/PIMRC.2004.1373922

Youngjun Chong, Sung-jin You, Min-Soo Kang, Myung‐Sun Song, Seung-Hyeub Oh

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引用次数: 2

摘要

我们评估了APCO项目25 FDMA规范中描述的数字调制方案的性能，这些方案可用于将超窄带技术应用于简单的双向无线电系统，并讨论了DSP实现系统的困难。分析了收发振荡器之间的频偏对系统误码率性能的影响。为提高系统性能，提出了一种频偏补偿方法。采用DSP实现的频率偏移补偿方法，当误码率为10/sup -3 /时，当频率偏移量为10%时，系统的Eb/No性能下降约1.0 dB。

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A frequency offset compensation method for ultra narrowband digital wireless modems

We evaluate the performance of the digital modulation schemes described in the APCO Project 25 FDMA specifications which can be used for applying the ultra-narrowband technology to the simple two-way radio systems, and discuss difficulties in the DSP implementation of the systems. We analyze the effect on the systems' BER performance of the frequency-offset between the transmitter and receiver oscillators. And we present a frequency offset compensation method for improving the system performance. With the frequency offset compensation method implemented in the systems using DSP, the Eb/No performance degradation of about 1.0 dB was occurred at the BER of 10/sup -3 /for 10 % of frequency offset.

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来源期刊

2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754)

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