A roundup of recent products in the GNSS and inertial positioning industry from the November 2024 issue of GPS World magazine.

OEM

High-Dynamics MEMS Gyro
Designed for precision navigation applications

The GYPRO4300 is a high-dynamics MEMS gyro designed for precision navigation applications. It features a ±300 °/s input range, 200 Hz bandwidth and 1 ms latency, making it ideal for dynamic environments. With a bias instability of 0.4 °/h and an angular random walk of 0.07 °/√h, the GYPRO4300 offers high-performance sensing in a compact, digital and low size, weight and power (SWaP) package.

Building on the GYPRO4300, the GYPRO4050 is a specialized north-seeking gyro for low-dynamics applications. This derivative offers 2° azimuth accuracy and is currently in the customer sampling stage. The GYPRO4050 maintains the same miniature package design as its predecessor, ensuring consistency across the product line.

At INTERGEO 2024, TDK showcased a prototype based on an ongoing research and development project. This new development utilizes the same miniature package as the GYPRO4300 and GYPRO4050 but demonstrates ultra-low noise capabilities, achieving an azimuth accuracy of less than 1°. This product is slated for launch in 2025.

Tronics Microsystems, tronics.tdk.com

Anti-Jamming
For challenging GNSS environments

This series of anti-jamming antennas comes in two models, PT023 and PT024. The antennas are specifically engineered to operate in challenging environments characterized by complex electromagnetic interference, high-power signals and strong multipath effects.

They are well-suited for scenarios involving low-elevation angle interference, high-power interference sources and radio communication system noise. The PT023 model utilizes multiple array elements combined with amplitude and phase manipulation to achieve spatial radiation shaping. This antenna also incorporates advanced multi-level filtering technology, effectively suppressing out-of-band noise power.

The PT024 model features vertical and horizontal two-dimensional polarization suppressors. This design effectively mitigates the reception of both odd and even LHCP and RHCP signals originating from the rear of the antenna, according to the company. It can also suppress low-elevation multipath signals at the same frequency and out-of-band noise signals. These features seek to enhance the antenna’s performance in complex electromagnetic environments.

Harxon Corporation, harxon.com

Triple-Band RTK Receivers
Integrated into ArduSimple’s evaluation boards

The UM980, UM981 and UM982 RTK modules are integrated into the ArduSimple simpleRTK3B series to accelerate high-precision GNSS integration. Supporting Galileo High Accuracy Service (HAS) and fast update rate (50Hz), these devices are suitable for applications that require reliable and precise navigation.

• SimpleRTK3B Budget (UM980): The most affordable step into triple-band precision.
• SimpleRTK3B Fusion (UM981): Ideal for projects that need GNSS and inertial measurement unit (IMU) sensor fusion or tilt compensation.
• SimpleRTK3B Compass (UM982): Designed for setups requiring dual antennas to determine the heading on moving platforms.

ArduSimple has also integrated Unicore UM980, UM981 or UM982 modules into the simpleRTK3B Micro Unicore, part of its compact Micro-format lineup. It is designed for simple PCB integration, which can significantly speed up the development process and the time to market for new products.

Unicore, en.unicore.com

OEM GNSS Antenna
Full-band, full-frequency antennas

The HX-SE402A and HX-SE403A are full-band, full-frequency antennas that integrate GNSS capabilities with a low-profile radio antenna to support 858-878MHz and 902-928MHz frequency bands. This addresses the growing need for devices requiring both navigation and communication functionalities. Harxon’s new low-profile technology achieves the same functionality at 10 mm height, allowing greater versatility in applications that demand precise positioning alongside wireless communication. Additionally, Harxon offers custom tuning services to optimize integration into OEM end-user modules for specific applications.

Harxon Corporation, harxon.com

UAV

OEMs
Engineered for autonomous applications

Advanced Navigation has expanded its Certus product line by introducing the Certus Mini series. This development marks a significant advancement in compact and high-performance navigation technology for field robots, autonomous vehicles and UAVs.

The Certus Mini series comes in three variants:

• Certus Mini D: A dual-antenna inertial navigation system (INS).
• Certus Mini N: A GNSS-aided INS.
• Certus Mini A: An attitude and heading reference system (AHRS).

These lightweight systems, weighing no more than 55 grams (1.9 oz), offer impressive performance and cost-efficiency for their size. The Certus Mini D utilizes dual-antenna GNSS for accurate heading, position and velocity measurements. It operates on L1/L5 multi-constellation…