Open AccessMethod of doubling range resolution without increasing bandwidth in FMCW radar
Author(s) -
Li Yake,
O'Young Siu
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.0309
Subject(s) - sawtooth wave , continuous wave radar , radar , sweep frequency response analysis , bandwidth (computing) , electronic engineering , waveform , pulse doppler radar , computer science , continuous wave , radar engineering details , radar imaging , acoustics , physics , telecommunications , optics , engineering , laser
The frequency modulated continuous‐wave (FMCW) technique has been used in many radar applications owing to its low requirements on radar hardware. Linear sawtooth sweep (the frequency sweeps in one direction) is one of the simplest waveforms employed by most FMCW radars. By theory and real data it is proved that by simply using the linear triangular sweep (the frequency goes first down and then up), the range resolution can be doubled without increasing the transmitted bandwidth.