Frequency Discrimination Method Using Asymmetric Transmission Time in FSK Radar

Autor:	Jae Young Sim, Jong-Ryul Yang
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	absolute distance measurement envelope detection frequency discrimination frequency-shift keying radar maximum unambiguous range Electrical engineering. Electronics. Nuclear engineering TK1-9971 Electricity and magnetism QC501-766
Zdroj:	Journal of Electromagnetic Engineering and Science, Vol 22, Iss 4, Pp 496-501 (2022)
Druh dokumentu:	article
ISSN:	2671-7255 2671-7263
DOI:	10.26866/jees.2022.4.r.114
Popis:	A frequency discrimination method based on transmission time control is proposed for effective absolute distance measurement using frequency-shift keying (FSK) radar. In FSK radar, each frequency is transmitted for different durations using an asymmetric control signal. The phase difference at each frequency is effectively obtained by counting the different numbers of samples obtained after envelope detection in the baseband signal. The proposed method can easily and rapidly distinguish the phase difference for each frequency. This makes it simple to measure the absolute distance up to the maximum unambiguous range. The absolute distance measured using FSK radar with a frequency spacing of 150 MHz showed an accuracy of 97.08% in the full unambiguous range. The distance measurement results prove that the proposed method using FSK radar is useful for presenting the maximum unambiguous range.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/b51f4250c3ec4df99f16b93147aab06a Zobrazit plný text záznamu View record in DOAJ