INS
GUI User’s Manual
Inertial Labs, Inc
TM
Address: 39959 Catoctin Ridge Street, Paeonian Springs, VA 20129 U.S.A.
Tel: +1 (703) 880-4222, Fax: +1 (703) 935-8377 Website: www.inertiallabs.com
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Fig. F.3 Determination of the GNSS antenna position relative to the INS unit
(positive directions)
F.2. Installation of two GNSS antennas for INS-D operation
The Inertial Labs
TM
INS-D uses heading calculated by dual-antenna GNSS
receiver for the INS correction. Two antennas should be installed in parallel
to the longitudinal axis of the carrier object to allow GNSS receiver to
measure object heading accurately. At this the secondary antenna is
installed ahead the primary antenna, so direction from the primary to the
secondary antenna is forward for the carrier object, see Fig. F.4.
Requirements for the primary antenna installation are the same as described
in “Appendix F.1. Installation of single GNSS antenna”. Position of the
primary and secondary antennas relative to the accelerometer mass-center
of the INS unit must be measured and stored to the INS nonvolatile memory.
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