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http://dx.doi.org/10.5139/JKSAS.2018.46.12.1049

Design of Signal Quality Indicator(SQI) for the Verification of the Communication Channel Condition in Guided Flight Systems  

Hong, Eonpyo (The 1st Research and Development Institute, Agency for Defense Development)
Jeong, Sangmoon (The 1st Research and Development Institute, Agency for Defense Development)
Gong, Minsik (The 1st Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.12, 2018 , pp. 1049-1055 More about this Journal
Abstract
This paper proposes the Signal Quality Indicator (SQI) to certify the wired communication channels connected between sub-systems embedded in guided flight systems. The communication signals can be distorted due to the poor interconnections of wired channels, the interference from the signals passing through the adjacent routed channels, and additive white Gaussian noises. As the ways to find out the condition of the communication channels, we present the Hamming distance based SQI (H-SQI) and the Euclidean distance based SQI (E-SQI). Two SQIs are compared in terms of the SQI resolution performance and the required number of hardware resources for implementations. The E-SQI requires the 10 times FPGA resources and an additional analog-digital converter over the H-SQI in spite of its outstanding SQI resolution performance. Moreover, the H-SQI could have the enough SQI resolution performance to find out the channel condition by increasing the oversampling rate, so the H-SQI is the more adequate than the E-SQI for the SQI of the guided flight systems.
Keywords
Guided Flight System; Hamming Distance based SQI; Euclidean Distance based SQI;
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