Javad DELTA-3N, Руководство пользователя

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5
Description and Operation
Introduction
DELTA-3N is a powerful and reliable receiver for
high-precision navigation systems, including high dy-
namics systems, for machine and traffic control, as well
as for high-precision surveying and geodynamics and
aerogeophysics applications.
864 GNSS channels of this receiver allow tracking
all current and future satellite signals. DELTA-3N is the
only receiver in the market that can track and decode
the QZSS LEX signal messages.
DELTA-3N can operate as a receiver for post-pro-
cessing, as a Continuously Operating Reference
Station (CORS) or portable base station for Real-time
Kinematic (RTK) applications, and as a scientific sta -
tion collecting information for special studies, such as
ionosphere monitoring and the like (Fig. 1).
Figure 1. DELTA-3N
DELTA can receive and processes multiple signal
types improving the accuracy and reliability of your
measuring points and positions, especially under diffi -
cult jobsite conditions.
The GNSS component of DELTA receivers means
you can access the GPS (Global Positioning System)
satellites of the United States, the Galileo (an upcoming
global positioning system maintained and operated by
Galileo Industries), the GLONASS (Global Navigation
Satellite System) satellites of the Russian Federation,
the QZSS (is a proposed three-satellite regional time
transfer system and Satellite Based Augmentation
System for the Global Positioning System, that would
be receivable within Japan), and the Beidou Compass
(Chinese Global Navigation Satellite System), increas-
ing the number of satellites your receiver can detect,
thus improving the accuracy of your measuring points,
increasing productivity, and reducing cost.
Several other features provide under-canopy and low
signal strength reception. The DELTA receiver provides
the functionality, accuracy, availability, and integrity
needed for fast and easy data collection.
Measuring with the right GNSS receiver can pro-
vide users accurate and precise positioning, a require-
ment for any measuring project. This section gives an
overview of existing and proposed Global Navigation
Satellite Systems (GNSS) and receiver functions to
help you understand and apply basic operating princi-
ples, allowing you to get the most out of your receiver.
Specifications
Tracking Features
• Total 864 channels: all-in-view
• GPS C/A, P1, P2, L2C (L+M), L5 (I+Q)
• Galileo E1 (B+C), E5A (I+Q), E5B (I+Q), AltBoc
• GLONASS C/A, L2C, P1, P2, L3 (I+Q)
• QZSS C/A, L1C(I+Q), L2C (L+M), L5 (I+Q),
SAIF
• BeiDou B1, B2
• SBAS L1, L5
• In-Band Interference Rejection
• Advanced Multipath Reduction
• Fast acquisition channels
• High accuracy velocity measurement
• Almost unlimited altitude and velocity(for autho-
rized users)
Performance Specifications
• Autonomous: <2 m
• Static, Fast Static Accuracy: Horizontal: 0.3 cm +
0.1 ppm * base_line_length**
• Vertical: 0.35 cm + 0.4 ppm * base_line_length