Five Ways to Simplify GNSS Testing

Learn how to simplify GNSS testing, and save time and money during the design, integration, certification and production of GNSS chipsets and GNSS-enabled devices.

Hybrid positioning

Spirent explains how positioning and location data, both indoors and outdoors, will be enhanced, by blending GNSS with other data sources to provide a hybrid solution and discusses some of the testing issues.

The risks and limitations of GNSS live sky testing within a production test environment

Testing using live sky signals is not a repeatable test method because the GPS constellation constantly changes. Spirent explains that testing with GNSS simulators within a controlled environment provides a more reliable alternative to live sky testing and explains the three key testing factors that need to be considered.

Testing GNSS systems for Automotive and Telematics applications for system integrity

Spirent provides a comprehensive overview of how GNSS simulation testing on automotive satellite navigation systems enables exhaustive testing in less time and without tying up engineering resources out on the road, saving you time and money.

Choosing a GNSS simulator?

Spirent will help you understand why all GNSS simulators and test approaches are not the same and how you need to understand what these devices can do to help resolve your particular needs. If this is new to you, don’t worry. Download the eBook and get a better understanding of:

• The different types of simulators available
• The pros and cons of each type
• The tests required
• The options available

The Fundamentals of GNSS Simulation

What is a GNSS simulator and why should you use one for testing? Spirent provide an overview of current and future GNSS systems including GNSS augmentation systems along with an explanation of the general principles of GNSS simulation and the concept of GPS simulation.

Integrating a GNSS receiver in to a product design

Integrating a GNSS receiver into a product design can be a complex issue. Spirent explains how using a GNSS simulator can help resolve some of the issues you face and save you time and money.

Common GNSS systems errors and how to test them

Failure to address these GNSS system errors when designing and manufacturing GNSS receivers and products integrating GNSS receivers will ultimately lead to poor-performing and unreliable end products. In this ebook Spirent explains the most common GNSS systems errors and how you can use a GNSS simulator to test GNSS receivers to ensure accurate and reliable results.

Testing Multi-GNSS in an Integration and Validation Environment

• The validation procedure
• The Multi-GNSS problem
• The test requirement and solutions

Testing Multi-GNSS in an R&D Environment

This eBook provides an insight into some of the testing issues faced by GNSS receiver developers and how Multi-GNSS simulation can help designers create receivers that can perform reliably anywhere in the world.

Simulation versus real world testing

In this ebook Spirent explain the 9 key tests that together determine the performance of any GPS/GNSS receivers and why GNSS receiver testing should not be carried out using live sky signals alone. If you're designing or manufacturing smartphones or products with a "location aware" component, you need to read this.

Testing multipath performance of GNSS receivers

Spirent provides an overview of the multipath phenomenon and how it affects GPS and GNSS receivers. This ebook explains how multipath effects can compromise the performance and accuracy of GNSS receivers, how multipath simulation can be used to evaluate these effects and how to mitigate against those effects in your receiver design.

Bring the complexity of the GNSS world back to the Lab

Spirent introduce the GSS6400, Record Playback System (RPS). The Record and Playback approach allows an actual environment to be captured and replayed at will, complete with real-life propagation, fades and interference. It is by its nature representative of the real world and so complements simulation as a source of GNSS signals for test. The GSS6400:

• Is simple to operate
• Provides repeatable test environments
• Represents real world conditions
• Makes collaboration easy with scenarios portable between units

An introduction to GNSS RF Record & Playback Systems Pt2

This ebook introduces the additional benefits offered by a Record Playback System (RPS) approach, describing the key testing areas where such an approach can add value.

GSS6400 RF RPS Application and Testing Examples

Spirent describes the applications, uses and results that can be obtained when using the GSS6400 GNSS Record and Playback System for the development and test of GLONASS and GNSS receivers.

Accelerate GNSS Testing with TestDrive-GNSS

Learn how to accelerate simulation-based GNSS receiver testing with Spirent’s automation and reporting tool.

Testing GNSS Receiver Performance in the R&D Phase with TestDrive-GNSS

Get a practical guide to accelerating receiver testing with Spirent’s TestDrive-GNSS software, enabling you to bring higher quality devices to market faster, and at a lower cost.

GNSS Chipset Testing for Device Designers and Manufacturers—A How-To Guide

Discover how you can use automated GNSS receiver performance testing software from Spirent to select the best chipset for your device.

Testing GNSS-Enabled Devices for Industry Certification with TestDrive-GNSS

Learn how to use Spirent TestDrive-GNSS to support your industry certification processes, and bring GNSS-enabled devices to market more quickly.

Testing GNSS systems for Automotive Applications

Spirent explains how a GNSS Simulator can readily be used to perform representative tests addressing each of the key problems inherent in GNSS automotive testing. By using a simulator you can reproduce the effects exactly either one-by-one, in any combination or all together with absolute control of the simulation parameters. The approaches described will maximise test effectiveness and ensure maximum fitness for purpose of the developed product while minimising your development cycles.

Connecting an RF Simulator to a GNSS receiver—what you need to know 

Spirent explains the different methods of transferring a simulated RF signal to the device under test  and the problems that need to be addressed to preserve the high fidelity inherent in the signals of a precision RF simulator.

Testing GNSS for rail applications

Spirent discusses the importance of GNSS test methodology and test standards within the rail network and provides some example test scenarios.

Reduce ‘real-world’ drive testing times using receiver NMEA data in a simulator test scenario

Spirent explains a test methodology that takes a file of recorded receiver NMEA data and converts it into a motion trajectory file allowing a re-run of the original navigation sequence to be made, which can then be repeated exactly, time and time again. This can drastically reduce test times associated with performing “real world” drive testing.

Simulation of realistic Antenna noise

Spirent provides a brief description of how a user can work out how to change simulator levels to compensate for the effects of antenna noise and explains some of the models available to help.

Simulating UTC leap second insertion events

Spirent explains how to test a GPS receiver using an RF constellation simulator to ensure it handles leap second insertion events correctly.

Simulating Multipath

Multipath is a phenomenon that can cause serious reductions in a GNSS receiver’s performance in a range of applications. In this Application Note Spirent discusses the problem of Multipath and how you can mitigate against this through a specific test methodology. Here Spirent provides an in-depth look at 9 types of multipath models and how they can be applied using a GNSS simulator. If you are designing, developing, integrating or testing GNSS receivers or systems, then is a “must read” article.

Multi-GNSS for Technology Developers

Navigation and positioning technology is no longer just about GPS L1 C/A code. GPS is being modernized, the GLONASS constellation is nearly complete, new systems including QZSS, Galileo and Compass are on the way. Multi-GNSS testing offers GNSS system developers and integrators opportunities and benefits. In this application note Spirent explains the issues involved in Multi-GNSS testing.

Fundamental GNSS Receiver Characterization

This Application Note discusses some of the fundamental receiver performance parameters applicable to GNSS and explains how by creating and running a series of controlled and repeatable test simulations you can benchmark your receiver’s performance and ensure your product performs to specification, prior to release to market.

Testing GNSS System Errors

Spirent identifies the principal sources of error, provides an in-depth explanation of the most common GNSS systems errors and discusses how using a GNSS simulator to test GNSS receivers can help to ensure accurate and reliable results.

Keeping your eye on the sky

Capturing as much as possible of the wanted signals from space and rejecting everything else is the goal for any aspiring GNSS antenna, and it’s a tough goal to attain. In this application note Spirent explains how using a GNSS simulator to model an antenna can highlight the difference in a receiver’s performance when the antenna is correctly modelled.

Connecting an RF Simulator to a GNSS receiver—what you need to know

Spirent explains the different methods of transferring a simulated RF signal to the device under test and the problems that need to be addressed to preserve the high fidelity inherent in the signals of a precision RF simulator.