1 - NGA

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rad~l ctmaer, of each werbpping photograph
! are used for horizontal corttroi extension by the
I sucmsdve irrteraatian and maecfion of therm
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I mdlarrt
direction fines. A radisl wirmgufetion sfsa is
oorrectty sailed a mdfxl ptot or a minor
controi
is rolled
plot. If made
an ●mlytlcal
by”ana~d methods,
radial triangulation.
it
A radial trfanoufation is assumed to be anmhiml
MIL-HDBK-850
unlasa prsfis&lby the word snalytlcal; l!”is
dse rmsumed to be based on the ~’*1 point
unless prefoted @ defmilive t- such as
Iwaoontsr or nadir point.
mdlat-(phetogmrnmatry) A line er dwecticm
frem the radal mrster to any peint on a
phcxograph. The radial center is assumed to be
tha principal point, unle= otherwise designated
(e.g., nadir radml). See alsa lsomdlal: nadir
radial; prlnclpal-point radial.
●nergy-The energy of any type of
electromagnetic radmlian. See also radlatlon,
definition 2.
radlatlorr-1. (surveying) The prccees of
fowling pints by a knowledge of their diracfkm
ard dlaiarsm from a known point. The directbm
may be SZlmutha W. bearings read hom,a. , .
theodolite or graphical directions determined by
afidade and pfanalable. The dkdences may be
tapad or maasunsd by stadia. 2. The proca%
by which electromagnetic energy is propagated
thrwgh free space by virlue of joint undulatory
varfatiorrs in the electric and magnetii fialda in
space.
radio acouatlc ranging—A means of
determining dstance by a omnbinatierr af radm
and sound; Ihe radio being used to datennine
tha instant of transmiaakm or reception of the
sound, and the distanca being determined by
ths time of transit of sound, uaualfy in waler.
radio batrcon-(JCS) A radio transmitter
ehiih emils a disthctive, or cheracteriatk, signal
used for the determination ef bsaringa, cwreea,
or lccatien.
radio dlrectlon flndlng+JCS) Radio
fmafiin in wh~h only the directbrr of a statian is
determined by means ef ita emiasirma.
radio faclllty charf-See onroute chart.
mdlo ffx-(JCS) The location of a ship or
aircraft by determining Ihe dkacfiorr of radii
signals comin~ to the ship or aircraft from two or
more sending stations, the focations of wisiih
209
are known.
radio lntorferornatm-An intarfemmetar
operating at radio tr~wsncies; used in radio
astronomy end in satellite traoWsg.
mdlo navigation-(JCS) Radm bcatiin
intended for the determination af position or
direction ar far abatruct”mrr warning in navigation.
mdlo mnga flndlngs-(JCS) Radio Lmetion
in which fha diafam of an ab@ct is de4emrined
by maana of ita radii omissions, whether
independent, reffacfed or retransmitted on the
same or other wev@ength.
radio rango statfon-(JCS) A radio
navigation land station in the aeronautical radii
navigatbn service prevkfing redia aquisiffnal
zones. In certain instances a radio ranga station
WY be placed cm board a shii.
radlomotrlc camera caflbralion—The
cdibratiin of a camera for spectral recording
characteristics.
mdlomotrlc finearlty-The gray levels are in
fineer Prop3n”krfl to the Iigh! intensities within rI
celor band.
radiometrlc nonlinearity-The analog to
digital oanveraion system that provides signaf to
nOiSe (~) ratios of the sensors, where the S/N
is calculated by the differenm of the eeneds
❑veraga dark signal value dwfdad by the mat
mean square dark noise value. Intermediate
intensities will be finasr representations fmrrr
average whita refamnce to the sverags darfr
reference. Irrlermadate inlenaitics will be
represented using a tinear tonal transfer curve
fer each cmbr ctsannef. Error inlredumd during
the dhgitiitkrn pmcasa whibh causes ma gray
scale valu- for a cder carrponerrf (RGB) to not
ba in tinaar proportii to the aourca intenaitiia
for that component.
radius vactor-Ths fine (distance) and
direction mnnectirrg the origin with the ~“nt
whose positian is baing defined. See also polar
coordinates.
random ●rror-Random errors are these not
classified es bfundera, syatermtic errors, or
periodii errors. They are nurrsamus, indwidualty
arrmll, and each is as Iikefy to be poail”we as
negativa. Aleo celled accidental ●rror;
casuaf srror.