In order to offer integrators a way to keep navigating when GPS can’t be trusted, Javad GNSS has introduced a new GNSS+INS product line. The family of tightly integrated GNSS and inertial navigation solutions is now available for evaluation and integration by qualified users.
The US-based developer and manufacturer of high-precision GNSS receivers for aerospace, defence and PNT applications built the line by pairing its multi-constellation GNSS receivers with proven commercial and defence-grade IMU modules through a purpose-built interface board. The result is a turnkey navigation system for OEMs, capable of producing PVT solutions with attitude even when satellite signals are jammed, spoofed or denied.
Jamming and spoofing have become persistent challenges for operators in aviation, maritime and uncrewed systems worldwide. Platforms most exposed to this threat – small UAS, autonomous ground vehicles, and marine systems among them – need compact, tightly integrated navigation systems capable of bridging these gaps. Until now, integrators have generally faced two choices: source a GNSS receiver and an IMU separately and take on the integration burden themselves, or purchase a sealed GNSS+INS unit built around a fixed, pre-selected inertial sensor.
Javad’s GNSS+INS configuration offers a third path. It ships as a pre-assembled stack that integrators can deploy as-is, or disassemble and remount to fit the mechanical constraints of their platform. The interface board manages the electrical connection, time synchronization and data path between the receiver and IMU – eliminating the cabling, timing alignment, and sensor calibration work that integrators previously had to handle on their own.
Crucially, the inertial sensor itself remains a configurable choice. Because the integration resides in the interface board rather than being hard-wired into the receiver, Javad is able to match the IMU to a given program’s grade, dynamic range and cost requirements – without compromising the performance or integrity of the underlying GNSS unit. Current configurations support gyro dynamic ranges up to ±2,000°/s, in-run gyro bias stability between 0.7 and 2°/hr, and accelerometer ranges from ±8g to ±40g.
Gary Walker, executive vice president at Javad GNSS, comments: “Now integrators can get GNSS performance and anti-jam protection while choosing the inertial sensor that fits their programme.”
