SBR-LS

Dead Reckoning GPS Receiver Board

ANTARIS^® Positioning Engine

Overview

The Sensor-Based GPS Receiver (SBR-LS) from u-blox containing the ANTARIS^® GPS positioning engine sets a new benchmark for accurate positioning in areas where GPS reception is hindered, for example in tunnels, city canyons, indoor and underground parking facilities, and as well as other difficult areas. The SBR-LS is the right solution for reliable in-vehicle navigation, vehicle location, fleet management and GPS-enabled road pricing systems where 100% road coverage is a must.

Sensor-based GPS receivers supplement the GPS information with an incoming signal from a gyroscope (turn rate sensor) and from odometer pulses to reconstruct the traveled route through longer periods of GPS outages with aid of dead reckoning. Depending on the quality of the available GPS signals, the innovative Enhanced Kalman Filter (EKF™) algorithm from u-blox computes the next positions accurately by using an automatically weighted average of the GPS and sensor inputs.

Ordering Information:
SBR-LS-0-000-0 (MCX connector, right-angle) Buy samples
SBR-LS-1-000-1 (MCX connector, straight, minimum order quantitiy: 100 units)

Further Information: End of Life, Technology, Product Summary, Data Sheet, Support and Technical Documentation, Road Test in New York City

Compared to standard GPS receivers, the SBR-LS provides significant advantages in following application areas:

In-vehicle navigation systems:
Accurate and timely driver directions in tunnels, underpasses, urban canyons and parking houses. Very efficient elimination of multipath effects prevents position errors resulting to misleading navigation advices.
Automatic vehicle location / fleet management:
Accurate and up-to-date position of the entire fleet is reported anytime and anywhere, including tunnels, covered driveways and indoor parking. The increasing requirements for efficient logistics and security will be met.
GPS-enabled road pricing:
Ability to manage different rates for different routes, tunnel and bridge passages, urban charge zones, support distance-dependent rate plans and automatic billing of indoor and outdoor parking.
Homeland Security:
Continuous position determination of dangerous goods and accurate direction of emergency vehicles.

Benefits

High sensitivity
- -150 dBm tracking
- -140 dBm acquisition
Low power consumption
- 500 mW with 5.0 V supply voltage
Reliable navigation while satellites are out of sight
- Direction traveled: Signal from a gyroscope
- Distanced traveled: Pulses from vehicle odometer
- Position output in standard NMEA and UBX protocols
Fast Time-To-First-Fix (TTFF)
- 34 s cold start
- <3.5 s hot start
Excellent navigation performance
- 2.5 m CEP
- 2.0 m CEP with DGPS / SBAS (depending on accuracy of correction data)
- No accuracy compromises at low signal levels
- Active multipath detection and removal
Active antenna support

Features

16 channel GPS receiver
8192 simultaneous time-frequency search bins
1Hz position update rate
Based on the ANTARIS GPS Technology:
- ATR0600 RF front-end IC
- ATR0620 Baseband IC with integrated ARM7TDMI
FLASH memory
Dead Reckoning (DR) with Enhanced Kalman Filter:
- 40 Hz internal DR calculation rate for high accuracy
- Mixed GPS and DR operation, depending on availability and quality of GPS signal
- Fully automatic calibration
- Temperature compensation
DGPS und SBAS (WAAS, EGNOS) support
Operating Voltage 4.75 to 5.25 V
Battery supply pin for internal backup memory and real time clock
Industrial operating temperature range -40 to 85°C
Small size: 71 x 41 x 11 mm

/products/sbr_ls.html
last modified: 15.12.2006

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