SAE International issues new eLoran standards documents

SAE International’s PNT Committee, a standards development working group within the Systems Management Council (SMC), has issued three new documents.

The documents provide technical descriptions of the signal-in-space eLoran waveform and two accepted data channel techniques that include explanations and recommended practices.

• SAE9990 − Transmitted Enhanced Loran (eLoran) Signal Standard. This transmitted eLoran signal standard provides technical descriptions of the waveform, specifications, and explanations. The data channel, receiver specification, and recommended practices are described in the SAE9990 family of standards.
• SAE9990/1 − Tri-State Pulse Modulation Data Channel Modulation Techniques. This eLoran transmitted signal standard provides technical descriptions of a data channel based on the tri-state pulse position modulation technique. The eLoran transmitted signal standard, to which this data channel technique applies, is part of the SAE9990 family of standards covering data channels, receiver specifications, and recommended practices for eLoran.
• SAE9990/2 − 9th Pulse Modulation Data Channel Modulation Techniques. This eLoran transmitted signal standard provides technical descriptions of the data channel using ninth pulse modulation techniques. The eLoran transmitted signal standard, to which this data channel technique applies, is part of the SAE9990 family of standards covering data channels, receiver specifications, and recommended practices for eLoran.

The standards demonstrate the PNT Committee’s far-reaching vision and purpose of safeguarding the operations of the global economy and critical infrastructure from being overly dependent on single-source PNT services, SAE said.

Noting that there is a growing consensus supporting the development of independent, complimentary, multi-domain PNT services that can interoperate with GPS and other GNSS, SAE is leading the charge to issue standards for eLoran.

These three documents, when combined with future SAE PNT Committee work products, will define architectures, sensors, interfaces, training and certification recommended practices, so that the commercial marketplace can continue to develop products and capabilities to provide robust and resilient PNT solutions for consumers.

In a field that is already experiencing unprecedented growth, these standards will promote the development of new PNT innovations, while also ensuring safe, secure and reliable operations for all modes of transport and other applications that exist on a foundation of accurate, reliable and trusted PNT capabilities, SAE said.

As the PNT Committee is comprised of technical subject matter experts from private sector companies, consulting firms, government departments and others across the aerospace and defense industries, collaborative efforts result in mandated processes that empower users and enhance performance.