All Blogs By Lisa Perdue

 
By Lisa Perdue, Product Manager
 
The development of autonomous vehicles for road, rail and water demands a comprehensive and repeatable test plan for GNSS. This white paper discusses and outlines testing methods for GNSS performance and vulnerabilities.
By Lisa Perdue, Product Manager
 

M-Code – it is here. Public Law 111-383, Section 913 requires all military GPS user equipment purchased after FY 2017 to be M-Code capable, unless a waiver is issued the Secretary of Defense.

One reason for the Secretary of Defense to issue this waiver has been the unavailability of M-Code user equipment. With Military GPS User Equipment (MGUE), or M-Code receivers, becoming available to vendors, now is the time to start getting serious about integration and performance testing of MGUE and systems that rely on it.

By Lisa Perdue, Product Manager
 

When it is time to test your device with an embedded GNSS receiver, there are several test methods. You can use the live sky signal, a record and playback device or a GNSS simulator.  However, when it is time to test your GNSS equipment designed to operate in space, live sky signal and record and playback are typically not options. You need a GNSS simulator. And not just any simulator: You need one designed to test GNSS receivers used in space-based applications.

By Lisa Perdue, Product Manager
 
GPS week zero started January 6, 1980. The 1024 weeks counter ran out and rolled over on August 21, 1999. The week counter then reset to zero, and it has been recounting ever since. The next time the counter will reach week 1023 and rollover to zero is on April 6, 2019.
By Lisa Perdue, Product Manager
 

As GPS receivers are built into more mission-critical devices for difficult application environments, and designed with the emerging capabilities of a multitude of GNSS constellations and augmentation systems, developers and manufacturers need better ways to guarantee performance. That’s where GPS signal generation comes in.

By Lisa Perdue, Product Manager
 

On April 16, 2014, the European Union published a new directive: The Radio Equipment Directive 2014/53/EU. This directive replaced the former Directive on Radio and Telecommunications Terminal Equipment (R&TTE) and has been in effect since June 13, 2016.

By Lisa Perdue, Product Manager
 

If you have a mission-critical application that demands the highest level of protection, you’re a candidate for an STL-based system. Satellite Time and Location, or STL, is a system that augments GNSS or serves as a backup to GNSS in critical systems.

By Lisa Perdue, Product Manager
 

STL is a new satellite-based GNSS augmentation system: Originating from the Iridium® constellation of 66 low-earth-orbiting satellites, STL is 1,000 times stronger than GPS/GNSS, reaching deep into buildings and preventing GPS/GNSS jamming without the aid of local infrastructure. STL signals are further protected by cryptographic security features that are much more difficult to misdirect or “spoof.”