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

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Eleftherios Drosinos

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

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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

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

Guy Buesnel

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

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

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

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

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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

Stuart Smith 

Recent GNSS issues provide new test cases for receiver developers

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

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

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

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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

Test as a Service

정확한 다중 주파수, 다중-GNSS 시뮬레이션 제공

GSS9000 시리즈 GNSS 시뮬레이터

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

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

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

당사의 TaaS가 고객 여러분의 사업에 선사해 드리는 혜택을 확인해 보세요.

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

Spirent의 Sim3D 다중 경로 시뮬레이션 소프트웨어가 고객 여러분의 사업에 선사해 드리는 혜택을 확인해 보세요.

Will Thornton

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 

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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

서비스 하이라이트

Romain Zimmermann

무엇을 제공합니까?

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

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

개요

수십 년의 경험을 바탕으로 개발을 가속화할 수 있습니다.

사례 연구

Furuno와 5G의 미래를 만들어가다

작동 방법

위해한 다중 경로 및 암흑화에서 귀사의 수신기를 보호하세요.

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

정확한 시간 및 동기화를 위해 셀룰러 네트워크는 GNSS 타이밍 수신기에 의존하고 있습니다. 이 블로그에서 살펴본 바와 같이, 다중 경로 신호는 밀집된 도시 지역에 설치된 타이밍 수신기에 심각한 위협이 되는 것으로 나타났습니다.

정확한 시간 및 동기화를 위해 셀룰러 네트워크는 GNSS 타이밍 수신기에 의존하고 있습니다. 이 블로그는 다중 경로 신호는 밀집된 도시 지역에 설치된 타이밍 수신기에 왜 심각한 위협이 되는지 살펴봅니다.

4G 및 5G 네트워크에서 타이밍 수신기에 위협적인 다중 경로 GNSS 신호 

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

고급 다중 경로 및 암흑화 테스트로 증명된 현실감으로 세세한 3D 환경을 구축합니다.

Spirent의 Sim3D 소프트웨어는 고급 다중 경로 및 암흑화 효과를 테스트할 수 있는 현실적인 3D 환경을 구축합니다. 더 알아보세요.

Sim3D 다중 경로 시뮬레이션 소프트웨어

다중 경로 및 암흑화 테스트로 현실감있는 3D 환경 구축

이 eBook은 GNSS 수신기에 대한 의존도가 증가함에 따라, 더 이상 라이브 스카이 테스팅(live-sky testing), 기록 및 재생, 통계 모델링과 같은 기존의 방법을 사용하여 다중 경로 및 암흑화를 평가할 수 없음을 알려 드립니다.



이번 e북은 개발자들이 왜 다중 경로와 암흑화 테스트에서 더 많은 현실적인 요소가 필요한지 이유를 담고 있습니다.

도시 환경에서 GNSS 신호 전파 시뮬레이션하는 방법

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

Find out how and why our customer chose to engage our professional services team to evaluate the geo-location performance of several IoT devices.

Our client asked us to benchmark performance of its IoT devices to facilitate smooth deployment

Advancing the Internet of Things with Spirent’s Test as a Service

Test as a Service Case Study

GSS7000M GNSS 시뮬레이터

Professional Services Engineer

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