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AN INTEGRATED FUTURE Steve Hewitson - 8 July 2014
Locata Commercial Model
Locata
OEM
Locata Technology Integrator
(LTI)
Market Product
LocataLite Rover
Integrated reference system
for testing in a GPS contested
environment
Fleet management for mining
operations
Vehicle guidance and
automation
WHITE SANDS MISSILE RANGE US Air Force
Ultra High Accuracy Reference System
White Sands Missile Range Ultra High Accuracy Reference System (UHARS)
Locata Transceivers
Locata Transceivers
White Sands Missile Range Ultra High Accuracy Reference System (UHARS)
GPS Jammed
Primary Requirements: 18cm 3D Accuracy PDOPS<3.0 30 mile (48km) Acquisition & Tracking
White Sands Missile Range 746th Test Squadron Aircraft – Rover Install
Locata Antenna
The current USAF Truth Reference For CDR trials an unmodified commercial Locata receiver was compared to this unit
White Sands Missile Range Network - Technical Demonstration
Master Tech Demo Slaves
+ 10 LocataLites for Operational Network
White Sands Missile Range Network – Master Site (NOP)
•
A LocataLite Slave site
USAF White Sands LocataNet covering approx 1,300 sq. miles
White Sands Missile Range Positioning Performance
Altitude: 25,000 ft Ground Speed: ~300 knots Duration: 30 minute Horizontal Accuracy: ~6cm Vertical Accuracy: ~15cm 3D Accuracy: ~16cm
White Sands Missile Range Acquisition & Tracking Performance
White Sands Missile Range Transmit Site Monumentation and Hardware
J-BOX
PVC Pipe
Grid Ant.
~ 6 Feet
Shielded Cable to Locata Trailer
Concrete Pillar #2
Quadrifiler Ant. Tx #1
Met Station & Sensors
Quadrifiler Ant. Tx #2
White Sands Missile Range Mobile Transmit Hardware
Ultra-rugged, mobile, high power (10Watt Amplifiers), Continuous Operation
Scheduled for operational flight testing Q4 2014
BODDINGTON GOLD MINE Newmont
Leica Geosystems - JigSaw Position System
Jassist - Positioning System
Tightly Integrated GNSS+Locata Measurements in Leica’s Core Algorithm Library (CAL). Co-located GNSS and Locata antennas. Well-aligned phase centres Multipath mitigating reception
patterns
Boddington Gold Mine Current Network
140 kms (90 miles) SE of Perth Planned Depth: 850m 4 Semi-permanent LocataLite sites 12 mobile trailers
North Pit Current Depth: 250m
South Pit Current Depth: 300m
Boddington Gold Mine JPS Performance – Accuracy vs GNSS only
Horizontal Difference Vertical Difference
Boddington Gold Mine JPS Performance - Typical availability over 1 week
North Pit – GPS only North Pit – With Locata
GNSS+Locata 99.5% Availability GNSS only 75.3% Availability
Began running 2 JPS receivers in April 2012 on 2 production drill rigs. Newmont now mandated all high-precision machines in mine must be fitted with Locata
VEHICLE RESEARCH CENTRE Insurance Institute for Highway Safety
Perrone Robotics - Vehicle Automation
Vehicle Research Centre Driver Tow System
Vehicle Research Centre Perrone Robotics - Autonomous Vehicle Test System (AVTS)
Primary Requirements: Highway Speeds Operational in:
Outdoors Covered test
tracks Indoor labs
Reliable and repeatable execution of test manoeuvres.
Accuracy: <5cm
Vehicle Research Centre Target Vehicle
Vehicle Research Centre Test Vehicle – Drop-in Actuator Kit (DAK)
Vehicle Research Centre Outdoor Transmit Sites
Vehicle Research Centre LocataNet Layout
Vehicle Research Centre Outdoor Test Track
Vehicle Research Centre Digital Terrain Model
Vehicle Research Centre Indoor Test Track
VRAY Correlator Beamforming
Multipath Antenna Gain Patterns and Beamforming
Nominal Gain Pattern
Phase Corrected Gain Pattern
Multipath Antenna Gain Patterns and Beamforming
Delay [chips]
Norm
alis
ed M
agn
itu
de
-1.0 -0.5 0.0 +0.5 +1.0 +1.5
1.0
0.0
0.5
Constructive
Multipath Constructive Multipath Signal
Composite Correlation Signal
LOS Signal
𝜏0
𝜏1
𝜏
𝜏𝑁
Multipath Antenna Gain Patterns and Beamforming
Delay [chips]
Norm
alis
ed M
agn
itu
de
-1.0 -0.5 0.0 +0.5 +1.0 +1.5
1.0
0.0
0.5
𝜏0 𝜏1
Constructive
Multipath Constructive Multipath Signal
Composite Correlation Signal
LOS Signal
𝜏
𝜏𝑁
Correlator Beamforming for GPS Receivers AFIT - Cooperative Research and Development Agreement
Existing CRPA Antenna GPS VRay Antenna
Multiple Radios
PORT AUTOMATION Market Exploration
Container Terminal Promising Market
