The following symbols are used throughout this manual to represent various items of data to simplify the explanation of

system functioning.

Definition

Symbol

Name

AL

Lower beam horizontal angle.

Horizontal angle at the radar from antenna

azimuth axis to lower beam intercept point.

Upper beam horizontal angle.

Horizontal angle at the radar from antenna

AU

azimuth axis to upper beam intercept point.

∆A

∆Azimuth.

AU - AL.

AZW

Weapon azimuth.

Azimuth angle from grid north to weapon

position.

AZ

Antenna azimuth.

Angle at the radar from grid north to

antenna axis (center of sector scan).

Azimuth orient information.

AZOR

C

A term used in azimuth and

The ratio of the extrapolated portion to the

range computations.

sampled portion of the trajectory.

dL/D.

D

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Datum plane projection of the distance

between the two intersections of the radar

beam with the projectile trajectory.

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Datum plane projection of the distance from

dL

the weapon position to the interception of

the lower beam with the projectile trajectory.

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Datum plane projection of the distance from

dU

the weapon position to the interception of

the upper beam with the projectile trajectory

Lower beam elevation.

Angle of elevation of lower radar beam above

EL

a horizontal datum plane.

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Radar easting.

ER

EU

Upper beam elevation

Angle of elevation of upper radar beam above

a horizontal datum plane.

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Weapon easting.

EW

HR

Radar height.

Height of radar set above sea level.

HW

Weapon height

Height of weapon above sea level.