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Since 1993, GPSat Systems has been delivering innovative satellite navigation equipment, system solutions and technical services to regional markets. As the regional distributor for both NovAtel and Spirent equipment, our dedicated team of engineers with broad multidisciplinary skills in electronics, software, geomatics and communication engineering, maintain elite technical expertise with the world’s leading GNSS components and test equipment.

Historically in response to specific customer needs, GPSat Systems has taken on the “challenging” project work in the "frontier" GNSS application areas, whereas the customers have had neither the skills nor technical resources to realise such projects.  As a direct result of our skills and access to key resources, our customers are always guaranteed the highest levels of technical support and professional competency in ever aspect of project delivery.

Provided below is an overview of current and past innovative work the company has undertaken. Talk to ours sales team for further information on how GPSat Systems engineering could help with your next GNSS project.

 


 

GGPS RF Jamming and Spoofing Detection and Geo-location Technology

Status - Current

JammingScenario-Military-2-WithRadioWaves.jpg

This technology is extremely unique due to several advancements. R&D project advanced signal processing technologies for both detecting and then geo-locating GPS signal Jamming from either intentional or unintentional RF transmissions. It was initiated with the preliminary objective for protecting the GBAS aircraft landing system at Sydney Mascot prior final certification. The four year funding for both ACSER (UNSW) and UniAdelaide was provided jointly by Australian Research Council (ARC Industry Linkage) and GPSat Systems Aust P/L.  This work concluded in late 2013 with both successful prototype demonstrations, and more recently, pre-production designs to be field tested later this year. GPSat Systems has the exclusive commercial rights to the technology. 

Current Commercial Product
  • Multi element electronic beam steering antenna array (Qty 8) producing very high gains (24dBi) from narrow directional beams, facilitating intense focusing on targets at a distance while rejecting other background noise.
  • Single frequency capability covering both GPS L1 frequency band.
  • Dual independent detection and geo-location processing, incorporating both Angle of Arrival (AOA) and Time Difference of Arrival (TDOA) spectral signal processing technologies for detecting all broadband noise sources, both intentional and accidental jamming. 
  • Sub Space Projection Processing (SSPP) technology to facilitate very weak signal detection. SSPP essentially removes the real GPS satellite (un-intentional) signals from the spectral data, essentially lowering the RF noise floor, thus optimising hunting for the weak RF threats due to distance, (+30 km)
Military Product; Under Contract with Australian Department of Defence

In 2013 GPSat Systems applied and was subsequently awarded a Defence /DSTO Capability Technology Demonstration (CTD Round 18) contract for the delivery of a military version of the prior civilian technology. Specifics of this contract are not available for discussion. GPSat Systems will be the sole owner of the Intellectual Property associated with this project with Ministerial announcement is below.
http://www.minister.defence.gov.au/2014/03/26/minister-for-defence-assistant-minister-for-defence-government-invests-in-defence-industry/ 

  • Simultaneous multi frequency capability covering both military GPS L1 and L2 frequency bands, with future enhance capabilities to incorporate Glonass and European Galileo signals when desired.
  • Enhanced signal Spoofing detection and geo-location capability, leveraged from both the electronic steerable AOA high gain antennas and SSPP spectral processing techniques. Combining both AOA & SSSPP processing, normal signal correlation techniques will easily facilitate adversary Spoofer detection and geo-location functions.
  • Australian designed for rapid deployment, rugged environment operation and specifically tailored for ADF network interconnection.
Follow Research & Development
2014 -2017  In 2013 ACSER (UNSW) and UniAdelaide jointly applied to ARC for follow-on funding for continued advanced signal processing technology R&D. Recently, (July 2014), this was approved and again will be jointly funded by Australian Research Council (ARC Industry Linkage) and GPSat Systems. Again, GPSat Systems has the exclusive commercial rights to the technology. 
 

For video information:

Watch the Video

 


 

3D Spatially Aware Machines: 3D-SAM

Status - Current

3D Spatially Aware MachinesInstalling precision GPS receivers on machinery and coupling the data with survey grade 3D models that define machine actual size and space occupied, then facilitates the spatial awareness. The GPS streaming data, 3D models and terrain are all blended by a powerful Linux computer, which then outputs, precision machine position, orientation and spatial information relating to all moving and static objects participating in the on-board 3D environment. This data is then feed to industry standard PLC control equipment. As each machine moves and communicates, it becomes aware of it's orientation, the 3D space it occupies and the relationship/distances between it's current position/orientation to the other machines and any static objects.

 Benefits of the systems include reliable high speed high accuracy navigation covering all machine extremities, improved stockpile utilization/optimization, and improved anti-collision safety functionality. Outputs from 3D-SAM system are then viewable in a 3D visual environment by operators/managers from any remote location via network connections.

The 3D_SAM and 4D_Vizz features include:

  • Scalable for multi machine deployment with static environment overlay.
  • Onboard spatial processing using powerful Linux computers.
  • Supports multi format 3D machinery and static scenery, (DXF, 3DS, etc..) .
  • Support for multimode network functionality through WAN/LAN and UHF comms.
  • Remote viewing through network 4D_Vizz for either live feed or data playback.
  • In use at AngloCoal for stockpile machinery primary navigation and Backup Anti Collision System (BACS).

For comprehensive 3D_SAM information:

3D SAM product information
 

 


 

Aviation GBAS Engineering Test & Measurement Tools

Aviation RTRemote - Xplane Screen CaptureStemming from tens years (1998 to 2008) of close association with the Australian AirService’s GRAS project (now discontinued), the company performed a broad variety of consultancy, project support and product research & development (R&D) activities. An overview of the three project related R&D outcomes is provided below.

RTRemote

Automated control interface that bridges the dynamic outputs from any number of popular PC simulation applications, (Xplane, FlightSIM, etc,) to automatically drive Spirent’s simulation SimGEN’s vehicle motion interface. In essence, using RTRemote the GNSS simulator becomes completely slaved to the output of the PC simulation. Any GPS receiver connected to the simulator experiences all the dynamics as commanded by the operator of the PC Simulation through the attached gaming joy stick, thus eliminating the need to prepare time consuming motion files manually within the SimGEN environment.

RTRemote product information
 

 

GVT Emulator

Aviation GVT EmulatorPrior to permanent GBAS infrastructure installation, many engineering issues associated with proper site selection and signal propagation characteristics need to be thoroughly investigated. Deficiencies in pre-installation testing can lead to expensive project overruns and costly delays. The GVT Emulator is designed for use by aviation authorities as a low cost test solution to assist in GBAS /GRAS pre-installation engineering risk mitigation studies. Employing a survey NovAtel OEM6 Receiver loaded with specialized API firmware, it directly controls a Telerad EM-9009A D8PSK VHF Transmitter (80 watts) and generates in real time either RTCA DO-246C GBAS Type 1, 2, 4 and GRAS 101 messages for any defined D8PSK slot.

Given its simplicity, (uncertified, limited RAIM only integrity, no redundancy), the GVT Emulator delivers aviation test authorities an efficient and easily deployable GBAS /GRAS support tool for generating engineering GBAS VHF test transmissions, in advance of future deployed final DO-278 approved vendor equipment. It supports industry demonstrations, system performance analysis, VHF propagation investigations and verifying aircraft avionics functionality. Also the GVT Emulator can be used as the ground static Reference Station (truth) when post processing aircraft trajectory for 2cm accuracy, (refer NovAtel GrafNAV software). 

GVT Emulator Product Information
 

 

GMMReceiver

Aviation GMMRFor both pre & post certified GBAS ground system installation, ongoing “user” GNSS signal verification and validation performance monitoring for provides for improved system confidence. The GNSS Multi Modal Receiver (GMMR) is designed as an adaptable low cost Airborne or Ground monitoring solution for continuous reception of VHF GBAS / GRAS signal transmissions. Using industry leading NovAtel OEM6 Receivers loaded with specialized API firmware, GMMR directly controls Telerad RE-9009A D8PSK VHF Receiver, while also differentially processing in real time incoming RTCA DO-246C messages, GBAS Type 1,2,4 and GRAS Type 101.

GMMR can deliver a variety of reception solutions either during aircraft flight surveys, (refer NovAtel GrafNAV 2cm post processing software), OR, in a static ground monitoring roles deliver continuous GBAS / GRAS system data 24 hours a day over the internet or 3G networks using the internal Ethernet ports. Given its simplicity, (uncertified, RAIM-only integrity, no redundancy), the GMMR delivers an efficient low cost GBAS signal monitoring utility/tool suitable for use during all phases of a GBAS /GRAS system deployment.

GMMReceiver Product Information
 

 


 

Past Projects

Equitronics P/L

Electronic design and software development for small tightly integrated electronic modules that incorporating GPS receiver, UHF modem, heart rate monitor, NVM data storage, etc for thoroughbred race horse training. Robust electronic modules were developed for both the saddle blankets and a rider display that clips to the bridle.

Backup Anti Collision System

As precursor to the current 3D_SAM initiative, a unique Backup Anti Collision System (BACS) for the HI Marandoo & Parabardoo Mine sites was commissioned. The systems used high precision NovAtel GPS equipment mounted on each of iron ore Stackers and one Bucket Wheel Reclaimer to continuously monitor 3D boom positions and inter-machine separations. The BACS was specifically designed to provide independent backup protection against unforeseen failures of the primary plant PLC system. If the BACS central Processing Unit detects an imminent collision, OPTO22 hardwired circuits were tripped, shutting down the offending machines.

Patricks Stevedore

In conjunction with Sanderson Logistics, delivered precision RTK satellite navigation system for the yard straddles generating container pick-up/ set-down coordinates. The system interfaced via a UHF radio network directly to the two terminals (East Swanson & Port Botany) container management software.