GP-Simulator | Patrotest Wiki

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=====GP-Simulator=====
GP-Simulator is a cost-effective solution for simulation of GPS L1 signals with live sky synchronization and user-defined modification of key parameters (such as power, pseudorange, Doppler, and navigation message content) for emulating controlled spoofing attacks.
GP-Simulator is designed for testing and investigating vulnerability points of GNSS dependant entities to spoofing and jamming.

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**Required Hardware**:\\
  * [[https://www.ettus.com/product/category/USRP-Bus-Series|Ettus Research USRP Bus Series]] with GPSDO;
  * [[https://www.u-blox.com/en/product/evk-8evk-m8|Ublox M8T GNSS receiver]] for live sky synchronization;
  * A computer device with capable hardware and internet connection;
  * External high quality 10 MHz reference source (for using radiated tests).\\
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GP-Simulator provides a clean and user-friendly interface, taking care of all complex computing processes in the backend.

{{:gp_simulator:gp-simulator_welcome.png}}
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GP-Simulator can be used in combination with radio frequency power amplifiers and antennas. Before use, make sure that your activities do not violate any local legal laws. 
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====Key Features==== 
  * Allows you to simulate a GPS L1 spoofer in synchronous and asynchronous modes for developing the corresponding protection methods and detecting potential vulnerabilities of the equipment to spoofing and jamming attacks;
  * Multiple instances of the App can be grouped into a cluster with a single control for simulating synchronous spoofing with multiple TX;
  * Supports conducted connection to the tested device for further lab testing and radiated connection for the further field testing;
  * Provides the synchronization accuracy with a life sky signal that is not worse than 100 nanoseconds;
  * Capable of adding various impairments to the signals like time\coordinates shift, satellite's relative power, pseudorange\Doppler offset, etc.;
  * Can add various types of jamming to the signal like wideband noise, continuous wave, etc.; 
  * Uses real almanac and ephemeris data.
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====Areas of Application====
We have developed this application for testing our own [[https://gpspatron.com/|GNSS spoofing detection system]], as well as for researching various possible attack scenarios.\\ 
**The application allows you to simulate simple and complex types of attacks**:
  * [[https://gpspatron.com/chapter-1-asynchronous-spoofing-attacks/|Asynchronous]];
  * Synchronous;
  * Synchronous with multiple TX.

**Security and Operational Benefits:**:
  * Conduct comprehensive research in the field of spoofing detection and prevention methods;
  * Test your existing infrastructure for spoofing vulnerabilities;
  * Test the quality of our [[https://gpspatron.com/|spoofing detection system]].

**All testing can be performed in the laboratory, as well as in the field.**
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====Quick Start====
To start testing your device, take the following simple steps:
  * Install the software on your computer device;
  * Activate a license via [[AppManager:Patrotest Application Manager]];
  * Connect [[https://www.ettus.com/product/category/USRP-Bus-Series|Ettus Research USRP]] with USB 3.0 interface;
  * Connect [[https://www.u-blox.com/en/product/evk-8evk-m8|Ublox M8T GNSS receiver]] via USB and RS-232 port;
  * Run the [[gp_simulator:NI-USRP Configuration Utility]] and set the name of your USRP to  "**usrp**."\\


Run the GP-Simulator.\\

{{:gp_simulator:gp-simulator_run.png?500|}}

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In the "Init position" tab, click on "UBLOX Port" and select "Ublox RS-232 port" from the list. After that, wait for the "Status" to display "3D fix"\\
 
{{:gp_simulator:gp-simulator_ublox_3d_fix.png?500|}}

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In the "Almanac & Ephemeris" tab, click on the "Download Almanac and Ephemeris" button to load files. **NOTE**: Internet connection is required.\\

{{:gp_simulator:gp-simulator_download_almanac.png?500|}}

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In the "USRP" tab, set the following: **USRP name** to "**usrp**," **10 MHz Ref** to "**GPSDO**," "**Spoofing Mode**" to "**Asynchronous**," and then check the "Conducted connection" box respectively.\\

{{:gp_simulator:gp-simulator_usrp_setup.png?500|}}

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In the "Start" tab, set "**DUT input power**" to "**-25 dBm**" and then click on the "Start Scenario" button.\\

{{:gp_simulator:gp-simulator_quick_start_run.png?500|}}
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====Operation Manual====
You can find the Operational Manual by following [[gp_simulator:Operation manual| this link]]

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====Evaluation Kit====


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For a quick and effortless start, we offer our customers the **Evaluation Kit** which consists of the following equipment:
  * Lenovo ThinkPad with the preinstalled software;
  * [[https://www.ettus.com/product/details/UB200-KIT|Ettus Research USRP B200]] with GPSDO and additional shelldering;
  * Directional coupler, two 30 dB attenuators and a SMA cable for conducted tests; 
  * [[https://www.u-blox.com/en/product/evk-8evk-m8|Ublox M8T GNSS receiver]] for live sky synchronization with a USB cable and USB\RS-232 adapter;
  * All equipments is placed on a plastic panel;
  * Evaluation Kit comes in the [[https://www.nanuk.com/nanuk-923-laptop.php|NANUK 923 protective case]].
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