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

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

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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

pnt-blog-10-28-2020

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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

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 

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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)

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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.

Spirent's Guy Buesnel explores GNSS spoofing attacks with examples and looks at the bigger picture and the future of GNSS Anti Spoofing. 

GNSS Anti Spoofing, GPS Performance Testing

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

概要

数十年の専門知識で開発チームを強化 

高精度な多周波、マルチGNSSシミュレーション。

GSS9000シリーズGNSSシミュレータ

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, Testing - Receiver Vulnerabilities

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

GNSS: New Threats Mean New Advances in Testing

New threats to GNSS require new approaches to receiver testing

If you are creating location-aware systems, such as drones, handsets, or smart watches, you need scientific insights to verify your design works. This eBook explains how to ensure your customers don’t get lost.


Learn what an RF constellation simulator is & what it does.Compare different RF constellation simulators & the tests that each perform. Evaluate GNSS simulators & learn about RF record & playback to see which Spirent solution meets your GNSS testing needs.

Testing GPS with a Simulator - Free Guide

What test techniques and technologies are right for you?

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.

PNT functionality is complex. Fixing issues earlier in the product cycle is vital. Spirent SimIQ helps receiver designers to test early and avoid costly rework.

RF to I/Q: GNSS Receiver Testing is Shifting Left

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, making vulnerabilities to multipath for developers. 

Testing GNSS Timing Receivers, 5G Networks

Testing multipath mitigation in GNSS timing receivers for 5G networks

Sim3Dマルチパスシミュレーションソフトウェアが貴社のビジネスにどのようなメリットをもたらすかをご紹介します。

Will Thornton

包括的な素材

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.

GNSSへの依存が強まる中、新たな規格やパフォーマンス基準が出現する見通しです。Spirentは現在および将来でのレシーバー準拠試験をサポートします。

新型のGNSSレシーバー規格が開発運用（DevOps）の負担を増加 

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

データシート

Sim3Dデータシート

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柔軟な期間の設定

標準および特注コース

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

商業用CubeSatの利用が成熟しており、オンボードのGNSSレシーバーのパフォーマンスもシミュレーションを通じて徹底的にテストする必要があります。

GNSSシミュレーター試験がCubeSatで不可欠な理由

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

独自の社内エキスパートを作成

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.

New GNSS equipment sold in the EU must be tested to ensure activity in nearby frequency bands doesn’t interfere with performance.

GPS Devices and EU Radio Equipment Directive

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

柔軟なトレーニングの提供

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.

As Galileo approaches full operating capability, a new generation of PRS and M-Code receivers are here.

Next Gen Testing Galileo PRS + GPS M-Code receiver

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

Training

ケーススタディ

フルノで5Gの未来を切り開く

当社のサービスが貴社のビジネスにどのようなメリットをもたらすかを紹介します。

有害なマルチパスやオブスキュレーションから受信機を保護

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

セルラーネットワークは、正確な時刻と同期を確保する上で、GNSSのタイミングレシーバーに依存しています。ブログに掲載した通り、当社のテストによると、マルチパスシグナルが、密集した都市部に設置されたタイミングレシーバーにとって大きな脅威となっています。

Cellular networks rely on GNSS timing receivers for accuracy. However, multipath GNSS signals are a threat to timing receivers installed in dense urban locals.

GNSS Signals Threaten Network Timing Receivers

マルチパスGNSS信号は、4Gや5Gネットワークのタイミングレシーバーにとって脅威

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.

As the GNSS environment evolves, receiver developers must test existing and future signals. Spirent is committed to making that happen.

New GNSS Signals, New Simulation Challenges

New GNSS signals bring new simulation challenges for receiver developers

Sim3Dマルチパスシミュレーションソフトウェア高度なマルチパスおよびオブスキュレーションテストを対象とした実証済みのリアリズムで、詳細な3D環境を構築します。

SpirentのSim3Dソフトウェアは、GNSSレシーバーでのマルチパスと不明瞭性の影響をテストするために、真に迫った3D環境のシミュレーションを行います。

3DでのGNNSとマルチパスのシミュレーション

マルチパスおよびオブスキュレーションテスト用のリアルな3D環境の構築

Sim3Dマルチパスシミュレーションソフトウェア

双方向的学習 

GNSS受信機への依存度が高まるにつれ、ライブスカイテスト、記録再生、統計的モデリングなどの従来の方法を用いて、マルチパスや不明瞭性の処理を評価することはもはや不可能です。

この電子ブックは、GNSS受信機でマルチパスや不明瞭性の影響を克服する方法を解説します。SpirentのSim3Dソリューションは、GNSSに依存した製品が正確に測位できるよう、現実に沿ったPNT試験の環境を生成します。

高精度GNSS受信機の試験手法

都市部の環境でマルチパスと不明瞭性を克服する方法