SX BLUE GPS iSXblue II+ GNSSTM, Руководство пользователя

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SXblue Series User Manual 58
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Positioning accuracy: Atlas provides competitive positioning accuracies
down to 2 cm RMS in certain applications.
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Positioning Sustainability: Position quality maintenance in the absence of
correction signals, using Hemisphere’s Tracer technology.
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Convergence Time: Convergence times of 10 – 40 minutes.
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Network RTK augmentation: BaseLink technology allows Atlas-capable
receivers to self-calibrate, self-survey, and automatically manage the
transmission of RTK correction data to augment or extend established or
new GNSS reference networks in areas of poor Internet connectivity.
2.6 COAST™ and SureTrack™ Technologies
The SXblue receiver is packed with features that make it unique on the market.
Coast technology affect positively the sub meter performance of the receiver,
whereas SureTrack is related to the sub meter and RTK performance.
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The SXblue receiver incorporates the COAST
TM
technology that allows it to
operate with old correction data for up to 35 to 40 minutes or more without
significant accuracy degradation. The feature’s performance is attributed to
sophisticated algorithms that are able to anticipate how errors change
during a period of correction loss.
Traditional receiver technology would experience an increasing degradation
with increasing age of corrections, resulting in less than adequate
performance over a shorter period of time.
COAST technology provides
more consistent positioning during periods when signal loss occurs, thus
bridging the gap to when the signal is reacquired. This means that the
SXblue receiver is more tolerant than competing products to loss of SBAS,
Atlas or externally input RTCM SC-104 corrections.
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The SureTrack feature allows the SXblue receiver (GNSS model) to use
GLONASS with GPS-only corrections. For example, all SBAS (besides,
eventually, the Russian SDCM) only broadcast corrections for GPS
satellites and contain no GLONASS corrections. When tracking an SBAS
signal, the SXblue receiver will use its DGPS solution along with other
parameters to generate its own GLONASS corrections. With SureTrack
technology the RTK rover makes use of every satellite it is tracking, even
satellites not tracked at the base. This results in fewer RTK dropouts in
congested environments, faster reacquisitions and more robust solutions
due to better cycle slip detection. SureTrack also removes concerns with
using various manufacturers GNSS base. Even if the GNSS base delivers
L1/L2 GPS, SureTrack with GLONASS at the rover will deliver the RTK
performance. This unique feature of using all satellites in view, provides with