K20s
- 100 -
errors factor in dynamic positioning
Eccentricity:
e
a
b
b
2
2
2
where a, b of the semi-major axis and semi-minor axis.
Ellipsoid: mathematical graphics formed when an ellipse moves around the minor
axis of rotation in Geodetic Survey.
Ephemeris: the position of celestial bodies over time parameters.
Flattening:
a is the semi-major axis, b is the semi-minor axis, e is the eccentricity.
Geoid: similar to the mean sea level and extends to the mainland special planes.
Geoid everywhere perpendicular to the direction of gravity.
Ionosphere delay: delay of radio waves through the ionosphere (non-uniform
dispersion medium)
L-band: The radio frequency range of 390-1550MHz.
Multipath error: the positioning error caused by the interference between two or
more radio signal propagation path.Observing session: the use of two or more
receivers at the same time to collect GPS data period.
Pseudo Range: GPS receiver in the time required to copy the code aligned with the
received GPS code offset and multiplied by the speed of light to calculate the
distance. This time offset is the difference between the signal reception time (time
series of the receiver) and the signal emission time (satellite time series).
Receiver channel: GPS receiver RF mixer and IF channel, can receive and track
satellites two carrier signals.
Satellite configuration: the configuration status of the satellite with respect to a
specific user or a group of users within a specific time.
Static position: do not consider the point of measurement of the movement of the
receiver.
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
