side scann.adj.
/ˈsʌɪd ˌskan/, U.S. /ˈsaɪd ˌskæn/ A. n.
1. Chiefly in technical contexts: a scan made looking from the side; a signal resulting from sideways scanning; spec. one obtained using side-scan sonar or radar.
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1953 U.S. Patent 2,653,185 3 When the mirror [in a television camera] is made slightly larger, however, the sensitive area of the detector..creates another spurious signal which we have..called ‘side-scan’.
1987 J. B. Lando & M. K. Thakur in F. L. Carter Molecular Electronic Devices xi. 242 A side scan (ϕ scan) over a few reflections showed no significant deviation in intensities.
1993 Continental Shelf Res. 13 1272 The side-scan shows a low amplitude feature not reported by the divers.
2011 I. A. Kakadiaris et al. in S. Z. Li & A. K. Jain Handbk. Face Recognition (ed. 2) xvii. 436 The goal is to handle both frontal and side scans seamlessly.
2. = side-scanner n.
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society > communication > telecommunication > other types of sound telecommunication > [noun]
telephoning1877
radiophony1880
photophony1881
sonar1943
pinger1957
side scan1996
1996 G. Griffiths & S. A. Thorpe in C. P. Summerhayes & S. A. Thorpe Oceanography xix. 309/2 The resolution of gloria, as with other side-scans, varies with range.
2013 R. Searle Mid-Ocean Ridges ii. 31 Higher-frequency side-scans provide greater resolution; they have limited range, but can be towed near the sea floor to provide high-resolution images.
B. adj. Frequently with hyphen.
Designating side-looking sonar and radar, esp. on a ship; relating to, employing, or derived from such a system. Cf. side-scanning adj.
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the mind > attention and judgement > discovery > instrument for detection > [adjective] > scanning horizontally
sideways-looking1832
side-looking1959
side-scanning1960
side scan1961
society > communication > telecommunication > other types of sound telecommunication > [adjective] > of sonar: being or producing a sideways beam
sideways-looking1832
side-looking1959
side scan1961
society > communication > telecommunication > radio communications > [adjective] > radar > types of
sideways-looking1832
primary radar1945
shoran1946
passive1954
monopulse1955
back scatter1957
monostatic1957
side-looking1959
side scan1961
lookdown1968
1961 Amer. Scientist 49 26 (caption) A simulated side-scan type of radar display, showing, at large scale, a western European sea cliff.
1967 Undersea Technol. Apr. 24/2 The most important feature of side scan sonar..is its ability to produce a permanent, continuous, graphic record of what it ‘sees’.
1979 Nature 29 Mar. 399/1 These surfaces were revealed by side-scan radar from aircraft in surveys made by the Brazilian government.
1984 Jrnl. Crustacean Biol. 4 31 (caption) Echogram of 50 kHz down-looking data (a) and 105 kHz side-scan data (b).
1991 New Civil Engineer 5 Sept. 23/2 A survey ship..started a side-scan survey on the base's 300m square burial site.
2010 A. Goudie & H. Viles Landscapes & Geomorphol.: Very Short Introd. ix. 113 The second set of techniques allows the creation of ‘images’ of the characteristics of surface and subsurface materials using sidescan sonar.
This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022).
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n.adj.1953