Leica GS20 manual Glossary

11. Glossary

Almanac

Library of coarse satellite orbital data used to calculate satellite position, rise time, elevation, and azimuth.

ASCII

American Standard Code for Information Interchange, developed through the American National Standards Institute. ASCII is a scheme of binary notation for machine- readable data.

Attribute

A data field of a database, often defined by the type of string, integer, real-number or boolean.

Auxiliary points

A base or reference point used to collect an offset point or feature.

Azimuth

A horizontal angle measured clockwise from a direction (such as North)

Bluetooth

A non-proprietary wireless cable replacement.

Code

1.A template of a feature layer, containing information about the object type and attribution.

2.C/A Code: The Coarse Acquisition GPS data message modulated on the L1 signal.

Coordinate Systems

The combination of an Ellipsoidal with a referenced angular or grid projection.

Course Azimuth

Azimuth of the GPS operators direction.

Course Velocity

Velocity of the GPS operator.

DGPS (Differential GPS)

A GPS system that utilizes differential code corrections to achieve an enhanced positional accuracy; usually 0.5-5 meters.

Differential Corrections

The determination of relative coordinates between the rover receiver from a reference receiver which are simultaneously tracking the same GPS signals.

Leica GS20 Field Guide-1.1.0en

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Glossary