An HF Digital Communication System Based on Software-Defined Radio

Agung Wicaksono, A. Mauludiyanto, G. Hendrantoro
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引用次数: 3

Abstract

High Frequency (HF) communication systems use radio waves at frequencies in the range of 3-30 MHz propagating in the form of skywave with the help of the ionosphere. For emergency communication applications, the HF communication system is expected to send text messages by implementing a digital communication system. This paper presents the design of the HF digital communication system on a Software-Defined Radio (SDR) platform for easy implementation. To achieve a good error rate performance, the AX.25 protocol is used at the data link layer. The system performance is evaluated by measuring Signal to Noise Ratio (SNR), Bit Error Rate (BER), Character Error Rate (CER), and Frame Error Rate (FER) with and without the AX.25 protocol. The results show that the system has been successfully implemented on the USRP platform with LabView as the user interface, while the use of the AX.25 protocol generates a zero error rate.
基于软件无线电的高频数字通信系统
高频(HF)通信系统使用频率在3- 30mhz范围内的无线电波在电离层的帮助下以天波的形式传播。对于紧急通信应用,高频通信系统有望通过实施数字通信系统来发送文本消息。为了便于实现,本文提出了一种基于软件定义无线电(SDR)平台的高频数字通信系统设计方案。为了获得良好的误码率性能,在数据链路层使用AX.25协议。通过测量信噪比(SNR)、误码率(BER)、字符误码率(CER)和帧误码率(FER)来评估系统性能。结果表明,该系统以LabView作为用户界面,在USRP平台上成功实现,使用AX.25协议实现了零错误率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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