Advanced Multi-Simulator Systems

GSG Series GPS simulators are exquisitly synchronized to accurately generate constellations of global navigation satellites, and other signals, through its single multi-channel output, which opens up more opportunity.

The benefit of accurately timed signals is the ability to synchronize several units to construct advanced test systems and pseudolite-like infrastructure.

  • Multiple RF outputs can be combined to create rich test environments with hundreds of signals.
  • Create tests for controlled radiation pattern arrays by generating direction-specific signals.
  • Test resiliency against spoofing scenarios where one unit is simulating live sky and another is attempting a take-over of GPS navigation.
  • Generate live sky GPS signals to act as an intelligent repeater system for a GPS-denied environment. 

Capabilities for Synchronization

For Advanced Test Systems

  • Each simulator's high quality crystal oscillator can be synchronized to a common precise 10 MHz reference clock via an external input.
  • A common trigger pulse synchronizes the start of the test scenarios across multiple units.

For Synchronization to Live Sky

  • A "Simulate Now" feature synchronizes to the exact date and time by an NTP server, and...
  • Downloads and uses the same satellite ephemeris data as being broadcast in the GPS message.

GNSS Vulnerability Test System

Understanding the reaction of GPS-based navigation in various spoofing scenarios is the key to hardening the system against spoofing attacks.

The threats to GPS-based navigation systems are ever-increasing. The risk of intentional disruption of GPS signals is moving from simple jamming to a much higher-level of sophistication. Spoofing— an attempt to deceive by broadcasting false GPS signals— can be devastating, leading to loss of assets or, worse, lives. While testing the sensitivity to jamming is basic functionality of GPS simulators, measuring the effects of various spoofing scenarios requires a high degree of complexity. Spectracom is at the forefront of testing the vulnerabilities of GPS-based navigation and now offers its capability as a GNSS Vulnerability Test System.

An Intelligent Repeater System

A Solution For Indoor Location with GPS

An intelligent GPS repeater system offers a cost-effective indoor positioning solution for GPS-denied locations

It consists of one Spectracom GPS time server with access to an outdoor GPS antenna and a network connection to GPS simulators. In addition to synchronizing the simulator's date/time, the time server also acts an a RINEX server to provide the data about live constellation. Any number of GPS simulators are set to generate signals corresponding to a fixed known location so GPS devices continue to provide a position fix when cross live sky to GPS-denied boundaries.



More Info
Spectracom's GSG series GPS/GNSS RF signal generator and simulation system is a product that reinvents itself. It is a feature-rich platform with a wide range of capabilities either configurable right out-of-the-box, or with easy modifications or add-ons.
pdf - 641 KB
Tuesday, September 15, 2015
By: Spectracom


More Info
This product brief describes the GNSS vulnerability test system built on Spectracom's GSG GPS/GNSS simulator platform.
pdf - 323 KB
Friday, March 11, 2016
By: Spectracom
More Info
A view of the GSG series simulator configurations.
pdf - 64 KB
Wednesday, September 17, 2014
By: Spectracom
More Info
Advanced Galileo simulators supporting all GNSS constellations
pdf - 712 KB
Wednesday, April 19, 2017
By: Spectracom
More Info
Advanced GPS/GNSS simulators for testing with up to 64 channels and across several frequency bands.
pdf - 708 KB
Wednesday, April 19, 2017
By: Spectracom
More Info
An intelligent GPS repeater system offers a cost-effective indoor positioning solution for GPS-denied locations.
pdf - 2 MB
Wednesday, February 10, 2016
By: Spectracom

Technical Notes and Briefs

More Info
What you want to know about GPS for testers of GPS devices and systems.
pdf - 324 KB
Wednesday, January 4, 2012
By: Spectracom
More Info
The value of a GPS simulator is to generate RF signals corresponding to real-world scenarios for comprehensive testing from the bench. In addition to features such as multi-path and interference conditions, Spectracom’s GSG series GPS/GNSS simulators can simulate signal obscuration via Environmental Models starting in application software version 6.1.
pdf - 932 KB
Monday, November 17, 2014
More Info
When using a Spectracom GSG series GPS/GNSS signal generator with an optional antenna, one must consider regulations controlling the radiation of GPS-like signals into the air. This document describes the analysis for limiting these signals according to United States requirements.
pdf - 205 KB
Thursday, May 3, 2012
By: Spectracom

White Papers

More Info
If you manage a time-sensitive network, you'll want to consider how a leap second event will effect your applications. We offer these tips to help you be prepared.
pdf - 356 KB
Friday, September 9, 2016
By: Spectracom
More Info
As GPS receivers are built into more mission-critical devices for difficult application environments, and designed with the emerging capabilities of a multitude of GNSS constellations and augmentation systems, developers and manufacturers need better ways to guarantee performance. That’s where a GPS simulator comes in.
pdf - 403 KB
Monday, May 14, 2012
By: Spectracom

Related Products