1 - NGA

4
approximately 4S:1.
, MIL-HDBK-B50
(hmprossed Rastsr Graphlca--A data
base of pmcassed Ewaf Arc-Semnd Ras\er
ChmfA@ (ARC) Dighixed Raster graphka
(ADRG) data devatoped lor the Army, and
producad and dkfribufed by DMA. CRG is
Intended to be tfta Army% map fsackground
standard, taqy3tad at bafflefiefd waapon and
command and conlrol systems where typically
data storage and dkspfay device capabffiiies are
Ifmifed. Tha CRG producfbn Iechnfque
cmTmmsaa full reeolutbn 24 bft, 254 dpi ADRG
on CD-ROM to 4 bft, 127 dpl tor a cu~eseion
factor of 24:1. CRG dafa on CD-ROM wifl
contain appmxknafety 100 TLMs, 6 JOGS, and
1 ONC over the same geograph~ araa.
compraeelon retlo-A ratio of digital storage
savings avalfable by compressing data.
comprasslon-1. A method of reducing the
WMume of dffhal data such that the dafa can be
restored (dem~ressed) to ffs offginal !orm.
Loasless Compression (e.g., run fenQIh
erksdng) retains all the information contained
in the data prbr 10 compression. Lossy
comPre=iOn (e.g., vector quamizalion) causes
some radocfiin in the irrfomratlon wnfenl of the
data. 2. See flattening (of the Earth).
computed attitude-Altilude determined by
co~tafbn, table, mechanical computer, or
graphics.
computad azimuth angleAzimulh angle
determined by computation, table, mechanical
device, or graphics for a given pface and time.
computed bearing-8earing anglas
determined by com~tation from known
bearings.
computod data mathod—A mefhod of
I’SCfffiiOn wffh an wtofocua rectifier whereby
Wf exfating in an aerial photograph k computed
and, from these computations, the instrument
SWtlfIgS are established mathematically,
RecfUicaUon k then amompfkhad without
furfhar comparison to Iemplata or other gukle
base.
ComDular Aldad Daalan/Draltlnn/
Compular Aided Man~facturfna-
(CAD/CAM)—The use of computers fo design
ard prockxie a producf.
computar aldad deaian (CAD)-Software
with the capebifily 01 asskting Iha operator 10
perform standard enaineerfng and archifech.rre
design functions. CAD aenerafly Invokes fayers
of dala consisf@ of grephlc pfimfthres and
bfock of data.
computer aldad mstppfna (CAiU)-
Software with the capability of aeekflng the
operator 10 perform standard mapping
functions. Afso known as Compufar M!sted
Mapping.
computar aaslelad cartography (CAC)-
The uae of automated Techniques in mep/charf
production.
Computar aaafefad drafflna (CAD)-
Sdfware which provides capatilifiea tor drawing
graphic primitives,
computer aeslsted drafting/dealgn
(CADD)—See Computer Aldad DesIan;
Computer Assfatad Drefflna.
computer aselated manufacturlna
(CAM)-The use of mm~tara in
manufacturing,
computer code-l. Swrce code, the text o}
Instrucflons of a compufar program (usually In a
high level language). 2. ~jecf mcdufa, e
compiled veraion of the source code, R is
macfrine readable, I.e., in binary.
computar compatible tapa (CCT+
Magnetic fape containing data in mmpufar
raadabla digilal format. Genarally data is
recorded as 6250 or 1600 blls per Inch @pi).
concava lana—See naaatlva lane.
concapt of operatlona (CONOPS)—(JCS)
A verbal or graphic atalement, in bread outline,
of a davaloper’e or mmmandera assumptbna
or intern in regard to an operation or ser% of
operations. The wrwept of operations la
frequently embodbd in campaign pfans and
operation plans; in the fatter case, parflcularfy
when tha plans cover a sarfas of mnnacfed
operations to be carried out simuffanaousfy or In
succession. The concepl is designed to giva an
overall picture of the operation. It k Included
primarily for additbnal cfarfty of purpose.
Frequently, ff is referred to as oommandera
COnCOptor CONOPS.
concludad anola—(trfangufafion) The third
angle of a triangle. not measured, but
50
,.