Signal-Code Design for Spread Spectrum Channels with Packet Errors Occuring

2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO) Pub Date : 2020-07-01 DOI:10.1109/SYNCHROINFO49631.2020.9166127

K. Bykov, L. Kazakov, E. Selyanskaya

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Abstract

The article discusses the features of the development of signal-code structures of a spread spectrum signals for channels with packet errors. Among these channels is the UAV control channel located at a great distance from the ground control station (channel A2G). The channel model is complex due to a whole set of factors, which include multipath, the unsteady nature of external conditions, and low declination angles. The last condition leads to a significant spreading of the power delay profile, which in the presence of Doppler scattering causes the phenomenon of error packing. Additional restrictions in solving the problem are due to the requirement to ensure the secrecy of the transmission channel. The paper investigates the multiplicity of packet errors at the channel output. An original result was obtained on reducing the multiplicity due to the use of a matched filter with embedded PSP, which formed the basis of the signal-code structures with Reed-Solomon channel coding.

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存在包错误的扩频信道的信码设计

本文讨论了带有包错误信道的扩频信号的信码结构发展特点。在这些通道中，无人机控制通道位于离地面控制站很远的地方(通道A2G)。由于多径、外部条件不稳定和低赤纬角等一系列因素的影响，通道模型是复杂的。最后一种情况会导致功率延迟分布的显著扩展，在多普勒散射存在的情况下导致误差堆积现象。解决这个问题的额外限制是由于需要确保传输信道的保密性。本文研究了信道输出端数据包错误的多重性。利用嵌入PSP的匹配滤波器减少了多重性，这为Reed-Solomon信道编码的信码结构奠定了基础。

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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2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)

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