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

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 

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

FL-Test-as-a-Service

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.

思博伦的Guy Buesnel将通过实例探讨GNSS欺骗攻击，并展望GNSS反欺骗的更广阔布局和未来。

GNSS反欺骗，GPS性能测试

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

GSS9000系列GNSS模拟器

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

步骤 3 

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.

GNSS: New Threats Mean New Advances in Testing

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)

欢迎了解我们的测试即服务如何为您的业务带来优势

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要求将GNSS时钟安装在街道高度或接近的高度水平上，而这种要求将使开发商不得不面对多径易感性的挑战。

GNSS授时接收机测试，5G网络

Testing multipath mitigation in GNSS timing receivers for 5G networks

欢迎了解Sim3D多径模拟软件如何为您的业务带来优势。

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.

随着人们对GNSS的依赖不断增加，全新的安全和性能标准将会不断出台。思博伦将为今天和明天的接收机一致性测试提供全面的支持。

全新GNSS接收机标准使DevOps面临考验

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.

随着商用立方星应用的不断成熟，星载GNSS接收机的性能必须通过模拟的方式接受全面的测试。

为什么GNSS模拟器测试对于立方星至关重要

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

服务亮点

Product Line Manager

Romain Zimmermann

有哪些交付项目？

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

步骤 1

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

概览

利用数十年的专业能力来助力您的开发团队 

案例研究

与Furuno携手塑造5G的未来

节省时间

步骤 2

保护您的接收机免受有害多径和遮挡的危害

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.



Learn how Spirent lab solutions helped NTT & Furuno develop a pioneering multipath mitigation algorithm.

NTT, Spirent Solutions & GNSS Timing Receivers 

Spirent solutions help NTT & Furuno develop pioneering multipath mitigation algorithm

Four steps to Test as a Service

测试即服务的四个步骤

Space Science Technologist

Talini Pinto Jayawardena

蜂窝网络依靠GNSS授时接收机实现精确的时间同步。我们的试验表明，多径信号会对安装于人口稠密的城市区域的授时接收器造成严重威胁，而这也是此博客探讨的话题。

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

多径GNSS信号对4G和5G网络中的授时接收机形成威胁

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.

随着GNSS环境的不断演变，接收机开发商必须对当前和未来的信号进行测试。思博伦一直在努力使这一切变为可能。

全新的GNSS信号，全新的模拟挑战

New GNSS signals bring new simulation challenges for receiver developers

构建包含经过验证的真实性的详细3D环境，实现先进的多径和遮挡测试。

思博伦的Sim3D软件可以实现真实的3D环境模拟，对GNSS接收机遭遇的多径和遮挡效应进行测试。

GNNS，3D多径模拟

为多径和遮挡测试构建真实的3D环境

Sim3D多径模拟软件

随着人们对GNSS接收机的依赖与日俱增，真实天空、记录与回放和统计建模等传统的方法已经无法充分评估接收机应对多径和遮挡的能力。

这本电子书解释了如何克服全球导航卫星系统接收器的多重和模糊效应。Spirent的Sim3D解决方案为PNT测试创造了一个真实的环境，以确保依赖GNSS的产品的精确定位性能。

高精度GNSS接收机的试验方法

如何克服都市环境中的多径和遮挡

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.

思博伦将回答GNSS分段误差、类型、频率和卫星系统用户所受影响方面的问题，并就如何保护客户提出建议。

GPS和Galileo的问题：接收机测试例

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.

Learn how Spirent benchmarked our client's performance of its IoT devices for deployment.

Advancing IoT With Test as a Service

Test as a Service Case Study

GSS7000 GNSS模拟器

Professional Services Engineer

有哪些优势？

步骤 4

测试即服务

让专职的思博伦工程师来加快您的开发进程。

利用思博伦的测试即服务，您可以将专用的思博伦PNT专业能够引入您的实验室，开发出您自己的测试能力和流程。

PNT测试，PNT测试即服务

让专职思博伦工程师加快您的开发进程 

测试即服务

利用数十年的专业能力来助力您的开发团队

测试即服务

服务亮点

节省时间

有哪些交付项目？

有哪些优势？

测试即服务的四个步骤

步骤 1

步骤 2

步骤 3

步骤 4

相关资源

How to Construct a GPS/GNSS Test Plan

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

欢迎了解我们的测试即服务如何为您的业务带来优势