3011 Variable Baseline GPS Compass 3011 Variable Baseline

3011 Variable Baseline GPS Compass

3011 Variable Baseline Ø Introduction Ø System Description Ø Example : Mobile Phone Antenna pointing Ø Other potential applications Ø Benefits

3011 Variable Baseline - GPS Compass Ø Origin : Ø GPS Compass for marine vessels : fishing, barges, tugs, … Ø Fixed baseline Ø Measurement : Ø Ø position heading pitch or roll speed Ø Aquarius² Ø Heading for Marine vessel, dredge, construction barge Ø Machine control Ø Military shelter orientation

GPS Positioning 24 satellites (4 per orbit) 6 orbital plans evenly spaced around the equator 55 degrees inclination vs equator Period of 12 hours approximately 20200 km altitude 5 satellites visible at any time anywhere in the world Measured distances geometric intersection Distance computed from the propagation time from the satellite to the user

3011 Variable Baseline - Purpose 1. To answer the need of applications where : 1. direction to be measured 2. equipment to be pointed to a specific direction. 2. 3011 : now offered as a “Variable Baseline” sensor 1. enhanced flexibility to allow various operational configurations 2. 2 antennas split up to a maximum of 2 meters.

3011 Variable Baseline - Typical Applications Ø Typical application characteristics : Ø Ø Ø 0. 2 to 1° “heading” measurement, short initialization time (better than 3 minutes), outdoor environment, little influence from environment : magnetic, shocks, vibrations, … low cost maintenance free

3011 Variable Baseline - Potential markets 1. Potential markets currently identified : 1. Antenna Pointing 1. Mobile / Cellular phone : mobile phone companies, antenna installers, … 2. FM-radio : FM-radio companies, antenna installer, … 3. Satellite Communication dish 4. Any type of transmitting / broadcasting antenna : army, . . . 2. Direction measurement 1. Army shelter : artillery, Electronic warfare, radar, … 2. Any receiver : radio, acoustic, … 3. Equipment orientation 1. Artillery, … 2. Radar antenna, …

3011 Variable Baseline - Mobile Phone Antenna 1. Mobile phone antennas : 1. Installed on top of infrastructures (tower, pylones, building, …) 2. Difficult accurate pointing using traditional equipment 3. Typical error as high as 15° 4. Inaccurate pointing create areas where radio coverage is not compliant to the predefined theoretical coverage. 5. Generates lower-than-expected service to customers, loss of revenue and customer insatisfaction. misalignment Proper alignment

3011 Variable Baseline Ø Introduction Ø System Description Ø 3011 / Antenna Ø LCPC Tests results Ø Example : Mobile Phone Antenna pointing Ø Other potential applications Ø Benefits

3011 - Main characteristics 1. Standard features 1. 2. 3. 4. 5. 12 ch. L 1, 4 ch. SBAS 3 I/O ports, PPS ( 0. 5 µs ), Ext. Evt Floating Power 10 -36 VDC 10 Hz raw & computed data (FASTOUTPUT) Local geoïd height output ( USERGEOID ) Slave Master 2. Optional hardware : 1. HF/MF Rx, TRM 100 GPS 3. Typical performance CPU board ay Keypad/display 1. Heading by Gyrosky ® = 0. 5° rms (40 cm baseline) 2. Pitch or Roll = 0. 8° rms (40 cm baseline) HF/MF

3011 - Front Panel TRM 100 Radio antenna Com ports GPS signal Power supply

3011 Variable Baseline - Antenna Ø Integrated antenna : Ø 40 cm baseline Ø “Variable Baseline” Ø 2 antennas split up to a maximum of 2 meters.

3011 Variable Baseline Ø Introduction Ø System Description Ø GPS Positioning Ø 3011 / Antenna Ø LCPC Test results Ø Example : Mobile Phone Antenna pointing Ø Other potential applications Ø Benefits

LCPC Test - Heading

LCPC Test - Pitch / Roll

3011 Variable Baseline Ø Introduction Ø System Description Ø Example : Mobile Phone Antenna pointing Ø Palmtop Ø Software Ø Accessories Ø Test results Ø Other potential applications Ø Benefits

3011 Variable Baseline System Ø Communication 3011 - Pocket PC Ø Blue. Tooth Ø Cable

3011 Variable Baseline - Pocket PC Ø Ø Ø Ø Fujitsu-Siemens Pocket Loox 600 Microsoft Pocket PC 2002 software based 400 Mhz Intel PXA 250 Processor 32 MB ROM / 64 MB RAM Colour touchscreen Integrated Bluetooth technology Cradle for data transfer and battery charging

3011 Variable Baseline - Software Ø Windows PC and Microsoft Pocket PC versions Ø Input Location data Ø Rough measurement Ø Precise measurement

3011 Variable Baseline - Software PC version

3011 Variable Baseline - Set-up equipment Ø Antenna set up Ø 60 cm baseline Ø 52 cm extension Ø Mechanical

3011 Variable Baseline - Accessories Ø Pocket LOOX standard accessories Ø Bags, Batteries Ø USB docking station, cables Ø Cards : GPS/GPRS Ø Carrying soft case Battery Blue. Tooth module

3011 Variable Baseline Ø Introduction Ø System Description Ø Example : Mobile Phone Antenna pointing Ø Palmtop Ø Software Ø Accessories Ø Test results Ø Other potential applications Ø Benefits

Example of installation

In-situ Tests (1) - Base 60 cm

In-situ Tests (2) - Base 60 cm - GSM Off

3011 Variable Baseline Ø Introduction Ø System Description Ø Example : Mobile Phone Antenna pointing Ø Other potential applications Ø Benefits

3011 Variable Baseline - Other potential applications 1. Satellite communication dish pointing 1. communication satellite system with orientable satellite dish installed on top of truck rear cabin 2. truck operators are not satellite communication specialists 3. truck operated in very high magnetic signature environment 4. 2 GPS antenna set on each side of the satellite dish 5. 3011 unit installed / operated inside the truck 6. operator operates steering mechanism to point dish towards communication satellite

3011 Variable Baseline - Other potential applications 1. Acoustic sensor position & direction measurement 1. military application, acoustic sensors to identify origin of a shot 2. Using 3 acoustic sensors, simple triangulation gives accurate location of the shot 3. Position AND orientation of sensor required 4. 3011 can be used with standard antenna 5. 3011 used to measure position & orientation 6. sensor measurement transmitted to a control center which performs triangulation 2. Other applications 1. Tropo antenna pointing 2. EW antenna 3. Radar antenna

3011 Variable Baseline Ø Introduction Ø System Description Ø Example : Mobile Phone Antenna pointing Ø Other potential applications Ø Benefits

3011 Variable Baseline - Benefits 1. “heading” accuracy (0. 2 ° for 1. 5 m antenna separation) 2. short initialization time (from 90 sec) 3. variable baseline flexibility 4. manual or automatic calibration 5. no magnetic influence 6. azimuth AND site measurement 7. metric accuracy position 8. simple installation & operation 9. low cost 10. maintenance free 11. high MTBF