Assured Positioning, Navigation and Timing (A-PNT)

Assured Positioning, Navigation and Timing (A-PNT)
Assured Positioning, Navigation and Timing (A-PNT)

Protect Personnel & Mission Success

What is Assured Positioning, Navigation and Timing?

The potential vulnerabilities of the military’s dependence on Global Positioning System (GPS) and Global Navigation Satellite System (GNSS) data are driving demand for new deployed approaches for detecting threats. In GPS/GNSS-denied environments, ensuring accurate Positioning, Navigation and Timing (PNT) information is delivered to the warfighter is absolutely critical.

Addressing Threats to GPS/GNSS

Curtiss-Wright has developed rugged subsystems and modules that deliver A-PNT services, designed to compensate for the loss of GPS/GNSS data and provide an alternative resource that enables GPS data to be trusted if an adversary attempts to deliver spoofed PNT data. With data derived from the combination of a Ground-Based GPS Receiver Application Module (GB-GRAM), Inertial Navigation System (INS), Chip Scale Atomic Clock (CSAC), and other Complementary PNT services, Curtiss-Wright A-PNT solutions enable the warfighter to establish “Assured PNT truth.”

VPX3-673A A-PNT Processor Card
The VPX3-673A is a 3U OpenVPX module aligned to CMOSS, VICTORY, and SOSA Technical Standards and the first solution to combine Alternative RF Navigation functionality and pntOS capabilities on a single card.
A-PNT vehicle computer and switch
The DBH-670A is a highly integrated, multi-functional vehicle computer and Ethernet switch that combines A-PNT functionality, a powerful Gigabit Ethernet switch, and a power-efficient Arm computer in a single box.

Simplifying Integration & Ensuring User Confidence

Designing and developing an A-PNT solution that seamlessly integrates information from multiple complementary sources and provides the same level of performance as GPS is not an easy task. From a design and engineering perspective, there are – quite literally – a lot of moving parts to consider and combine to arrive at a PNT truth. This white paper explores the challenges involved in developing effective and reliable A-PNT solutions, and provides guidelines for taking a holistic approach to A-PNT for maximum effectiveness.



Proven Technology for Trusted PNT

Curtiss-Wright’s A-PNT solutions are designed to provide ground vehicles with access to trusted PNT information while operating in conditions with limited, impeded, or denied GPS/GNSS. Curtiss-Wright’s A-PNT solutions are cost effective, simple to configure, and rapidly deployable, as well as size, weight and power (SWaP)-optimized for both combat and tactical wheeled vehicle platforms to ease the integration of software and hardware elements required by the warfighter to effectively conduct operations in a GPS/GNSS-denied environment.

By distributing the best available PNT data simultaneously to multiple platform applications that require GPS/GNSS data, Curtiss-Wright A-PNT solutions eliminate the need for a ground vehicle to support multiple GPS/GNSS receivers or antennas. Curtiss-Wright’s A-PNT solutions meet legacy GPS/GNSS distribution requirements and are compatible with standard accessories, such as antennas, configuration cables, and all serial interface cables. They are designed to support both legacy and future technology, including interfacing to mission equipment, as well as Anti-Jam Antenna and tactical communications.

Explore the Modular Open Systems Approach Standards

Modular Open Systems Approach  

An acquisition and design strategy that prioritizes the use of open standards-based technology.

C5ISR/EW Modular Open Suite of Standards  

Enables hardware and software commonality between platforms and command posts.

Future Airborne Capability Environment  

Aims to standardize approaches to bring open standards solutions to avionics systems.

Sensor Open Systems Architecture  

Defines common hardware and software for sensor processing systems.

Vehicle Integration for C4ISR/EW Interoperability  

Promotes the use of open standard physical and logical interfaces between LRU systems.

Modular Open Radio Frequency Architecture  

Developed to offer new capabilities including reducing SWaP as well as interoperability functions.

Generic Vehicle Architecture  

Mandates the use of open, modular, and scalable architectures in the design of new and upgraded ground vehicles.