Company

Solutions

Resources

Contact + Support

Global Footer

Products + Services

Partners

Events

Support

CONTACT AN EXPERT

Global menu to display on top of all pages

Global Header

中文网站

日本語ウェブサイト

 대한민국

English

Global Language

Read message

COVID-19: A message from our CEO.

Cookies

Website Privacy

Terms & Conditions

Modern Slavery Act & California Supply Chains Act Statement

Sitemap

Global sub-footer

sc-Performance-testing

sc-Talini

sc-mia-swain

sc-wnro_example

sc-Social_networks_107419345_Globe_lt_BG

Blog - Testing multipath mitigation in GNSS timing receivers for 5G networks

Getting it right. Why not all simulators are the same.

sc-Testing GPS with a Simulator eBook

icon report

Eleftherios Drosinos

sc-Will-Thornton

Sim3d - abstract row of blue dots

Blog - As new GNSS receiver standards emerge, developers face new test challenges 

sc-GPS-navigation-device

sc-Satellite-over-earth

Blog - The GPS Week Number Rollover problem

Blog - Performance testing for a new generation of Galileo PRS + GPS M-Code receivers

pnt-blog-10-28-2020 Multipath GNSS signals are a threat to timing receivers in 4G and 5G networks

pnt-blog-10-28-2020

ebook-construct-a-test-plan-620x200

sc-man holding tablet

Sim 3D telecommunications tower with blue sky

Blog - New threats to GNSS require new approaches to receiver testing

Guy Buesnel

Blog - New GNSS signals bring new simulation challenges for receiver developers

sc-Spirent Solutions Help NTT and Furuno

get app icon

sc-blog-new-gnss-signals

sc-satellite-earth

A guide for engineers integrating GPS / GNSS capabilities into new devices 

sc-How to Construct a GPS/ GNSS Test Plan

Timing accuracy in multipath conditions: significant deviations exceed ITU-defined tolerances

Blog - Commercial CubeSat missions: why GNSS testing with a simulator is essential

Rahul Gupta

Timing accuracy in clear-sky conditions: timing outputs remain well within the 100ns performance threshold

pnt-blog-3 Timing accuracy in clear-sky conditions: timing outputs remain well within the 100ns performance threshold

Automotive Ethernet Conformance Testing 

Stuart Smith 

shuffle

Recent GNSS issues provide new test cases for receiver developers

sc-recent-gnss-issues-provide-new-test-cases-for-receiver-developers

sc-Understanding Multipath and Obscuration

library books icon

Blog - Recent GPS and Galileo issues provide new test cases for receiver developers

speed icon

sc-romain-zimmermann

pnt-blog-1 Testbed setup for 1PPS and PTP outputs from the timing receiver device under test (DUT)

school icon

style icon

pnt-blog-2 Simulation of line of sight (white), reflected (red) and diffracted (blue) signals, San Francisco location

lecturer-stage--blurred-audience-870x490

Material icon - history

FL-Training

cast for education icon

Stuart Smith

Understanding the threat of spoofing can help you to mitigate. Spirent's Guy Buesnel explores.

Understanding the threat of GNSS signal spoofing can help you to mitigate. Spirent's Guy Buesnel explores GNSS spoofing attacks with examples and looks the bigger picture. 

With GNSS Spoofing Attacks on the Rise, Resilience and Robustness Go Hand-in-Hand

Mia Swain

For How to Construct a GPS/GNSS Test Plan

CPhys, FRIN,  Product Manager – GNSS Vulnerabilities 

Some GPS receivers may malfunction on or after 6 April 2019 due to the GPS Week Rollover. Here’s what that means and how to check if a receiver is vulnerable.  

The GPS Week Number Rollover problem

Overview

Boost your development team with decades of expertise 

Precision multi-frequency, multi-GNSS simulation.

GSS9000 Series GNSS Simulator

New tests conducted by Spirent in a live sky environment demonstrate that some commercial GPS receiver models can be compromised by spoofing devices at 10m, 50m and 100m distance.

Find out how Spirent used live sky signals alongside simulation to demonstrate how commercial GPS receivers are vulnerable to spoofing attacks.

GPS Spoofing: New Live Sky Tests Confirm Receivers Are Vulnerable to Attack

Related Resources

With RF interference and spoofing attacks both on the rise, GNSS receiver developers must be able to simulate new threat sources in the lab. 

With RF interference and spoofing attacks both on the rise, GNSS receiver developers must be able to simulate new threat sources in the lab. Spirent can help.

New threats to GNSS require new approaches to receiver testing

If you are creating location-aware systems, such as wearable technology, fitness bands, handsets, or smart watches, and need insight to verify your design works, then this eBook explains how to ensure your customers don’t get lost.


Testing GPS with a Simulator - Free Guide

Testing GPS with a Simulator

Testbed setup for 1PPS and PTP outputs from the timing receiver device under test (DUT)

PNT functionality is getting more complex, making it vital to fix issues earlier in the product cycle. Spirent SimIQ helps receiver designers to test early and avoid costly rework.

From RF to I/Q: Why GNSS receiver testing is ‘shifting left’

5G requires GNSS time clocks to be located at or near street level. That makes them vulnerable to multipath, creating design and test challenges for developers. 

5G requires GNSS time clocks to be located at or near street level. That makes them vulnerable to multipath. Spirent looks at the challenges this brings developers. 

Testing multipath mitigation in GNSS timing receivers for 5G networks

Learn how Sim3D multipath simulation software could benefit your business.

Will Thornton

Comprehensive materials

As reliance on GNSS grows, new safety and performance standards will likely emerge. A flexible testbed will create a solid foundation for future conformance testing.

As reliance on GNSS grows, new safety and performance standards will likely emerge. A flexible testbed will create a solid foundation for future conformance testing. Spirent explores.

As new GNSS receiver standards emerge, developers face new test challenges 

As New GNSS Receiver Standards Emerge, Developers Face New Test Challenges 

Datasheet

Sim3D datasheet

More Highlights

Installation and onboarding

Contact Us

Flexible duration

Standard and bespoke courses

More industries are using CubeSats for communications and data services, with many containing GPS/GNSS receivers for orbit determination and timekeeping.

Commercial CubeSat missions: why GNSS testing with a simulator is essential

Simulation of line of sight (white), reflected (red) and diffracted (blue) signals, San Francisco location

Romain Zimmermann

For Testing GPS with a Simulator - Free Guide

Create your own in-house experts

From 13 June 2017, all new GNSS equipment sold in the EU must be tested to ensure activity in nearby frequency bands doesn’t interfere with performance. Here’s what you need to know.

EU Radio Equipment Directive: What GPS Device Manufacturers Need To Know

Flexible delivery

As Galileo approaches full operating capability, a new generation of PRS and M-Code receivers is on the horizon. Performance testing will require state-of-the-art simulation.

Performance testing for a new generation of Galileo PRS + GPS M-Code receivers

Training

Case Study

Shaping the future of 5G with Furuno

Learn how our Training services could benefit your business

Protect your receiver against harmful multipath and obscuration

A 5G network architecture typically requires primary reference time clocks (essentially GNSS receivers) to be installed near clusters of short-range base stations. Many clocks will be installed at street level in built-up areas, rather than on top of towers or tall buildings as has been the case with 4G. Multipath signals abound in such locations, while the narrow view of the sky often limits the number of line-of-sight satellite signals available. Both issues can severely affect a receiver’s ability to maintain accurate time, to the point where network quality of service can be seriously impacted.



Modern cellular networks need accurate time signals from GNSS satellites to keep transmission in sync. With Spirent’s help, NTT and Furuno have developed an algorithm for GNSS timing receivers that eliminates the effects of multipath, dramatically improvi

Spirent solutions help NTT and Furuno develop pioneering multipath mitigation algorithm for GNSS timing receivers

Spirent solutions help NTT & Furuno develop pioneering multipath mitigation algorithm

Space Science Technologist

Talini Pinto Jayawardena

Cellular networks rely on GNSS timing receivers for accurate time & sync. Our tests show that multipath signals present a significant threat to timing receivers installed in dense urban locations, as this blog explores.

Cellular networks rely on GNSS timing receivers for accurate time & sync. This blog explores and demonstrates how multipath signals present a significant threat to timing receivers installed in dense urban locations. 

Multipath GNSS Signals Are a Threat to Timing Receivers in 4G and 5G Networks

As the GNSS environment evolves, receiver developers must be able to test with the full range of existing and future signals. Spirent is committed to making that happen.

New GNSS signals bring new simulation challenges for receiver developers

Build detailed 3D environments with proven realism for advanced multipath and obscuration testing.

Spirent's Sim3D software enables the simulation of realistic 3D environments for testing the effects of multipath and obscuration on GNSS receivers. Read more.

Sim3D multipath simulation software

Build realistic 3D environments for multipath and obscuration testing

Sim3D Multipath Simulation Software

Interactive learning 

This eBook will show that as reliance on GNSS receivers grows, it’s no longer viable to assess their handling of multipath and obscuration using traditional methods like live-sky testing, record and playback, and statistical modelling.



In this eBook we explore why developers need greater realism in multipath and obscuration testing.

How to simulate GNSS signal propagation in urban environments

Training Highlights

Issues like the GPS Week Number Rollover and recent Galileo outage mean developers and users should verify that each system’s ICD is correctly implemented in their firmware.

Should you test against GNSS segment errors? This blog explores the types, frequency, and impact on users of satellite system errors, and looks at what developers can do to protect their customers.

Recent GPS and Galileo issues provide new test cases for receiver developers

For any new GPS/GNSS-enabled device, thorough testing is essential – but the tests you run, and the standards you apply, will depend on what it is you’re developing, the ways it’s likely to be used, and the levels of performance your users expect.



A guide for engineers integrating GPS/GNSS capabilities into new devices

How to Construct a GPS/GNSS Test Plan

Avoid testing pitfalls

Accelerate test programs

GSS7000 GNSS Simulator

Professional Services Engineer

Quickly upskill your team with training services from the leaders in PNT testing and development. Find out more. 