Hemisphere GPS Crescent V100 Series, Руководство пользователя

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Crescent V100 Series User Guide
49
The Crescent V100 places a constraint on the RTK solution with the
prior knowledge of the fact that the Secondary GPS antenna has a
fixed separation of 0.50 meters (1.64 feet) from the Primary GPS
antenna inside the enclosure. This defines the search volume of the
Secondary antenna as the surface of a sphere with radius 0.50
meters (1.64 feet) centered on the location of the Primary
antenna. (See Figure 2-1.)
Figure 2-1. Secondary antenna’s search volume
Supplemental Sensors
Integrated inside the Crescent V100 are a tilt sensor and gyro,
which are enabled by default. Each supplemental sensor may be
turned on or off individually, however, the full functionality of the
Crescent V100 system is realized only when all are used. Each
supplemental sensor is inside the Crescent V100 enclosure,
mounted on the internal printed circuit board.
Note: The Crescent V100 moving base station algorithm
only uses GPS to calculate heading. Differential corrections
are not used in this calculation and will not affect heading
accuracy.
Primary
antenna