Spectra Precision SP90m, Руководство пользователя

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63
RTK + Relative
RTK Rover
Reminder: Relative RTK refers to the ability of the SP90m to
compute and deliver the three components of the vector
connecting a mobile base to this receiver. The components of
the vector are provided with centimeter accuracy, just as is
the position of the SP90m, as computed in RTK using
corrections received from a static base.
One of the typical applications of Relative RTK is the
constant monitoring of the position of a vessel relative to that
of another vessel or to the jib of a crane used on a quay.
On the receiver’s General Status screen, the receiver will
display “FIXED” (with short “FLOAT” transition time) when
computing a position in RTK mode. The computed RTK
position is displayed after pressing
. A new press on this
button will display the computed components of the vector.
When at least one set of corrections is received and used,
is displayed on the General Status screen together with the
age of corrections (see
General Status on page 27 ).
To configure the receiver in RTK+Relative RTK, use the Web
Server as follows:
• Go to
Receiver
>
Position
>
Rover Setup
.
• Set
Processing Mode
to
RTK + Relative RTK
.
• Specify how the two sets of corrections are being
forwarded to the receiver by setting
Input Mode
accordingly.
1
XYZ or
Lat-Lon-Height
Position
+
3-D Components
of Vector
RTK
Position
3-D Ve
ctor
Two independent sets of corrections via:
• Internet (Ethernet, cellular modem, or WiFi), or
• UHF Radio
Corrections
from static base
to compute
RTK position
Corrections
from moving base
to compute
3D-vector