DigiKey-eMag-Robotics-Vol 22

With Calian’s smart GNSS antennas, developers can concentrate on timing or positioning needs while customizing elements of their system, including interface options, mechanical components, mounting styles, and the addition of inertial measurement units (IMUs) for enhanced performance in dense urban environments. The multi-band, high-precision solutions support centimeter-level accuracy through compatibility with both local base/rover corrections and commercial Real-Time Kinematic (RTK) services from various vendors. Integrated IMUs help reduce the impact of severe multipath effects, enabling robust performance even in challenging GNSS conditions. Software Development Kits Calian’s Smart GNSS SDKs offer a plug-and-play evaluation platform for its Smart Antennas, designed to streamline development and integration. The SDKs include tools such as TruPrecision software, a short-term complimentary augmentation subscription, and straightforward PC connectivity via USB. The TW5794 Smart GNSS Antenna SDK ( TP5794SDK ) provides a ready-to-use solution for achieving precise heading in robotics applications. It is based on Tallysman’s TW5794 Smart GNSS Precise Heading Antenna,

Figure 1: TW5384 Smart GNSS Antenna w/ u-blox ZED-F9P series receiver (left), and the HCS885XF Smart GNSS Antenna w/ u-blox NEO-F9P series receiver (right). Image source: Calian

Written by Electronic Specifier

without the need for augmentation. This level of precision is achieved through the integration of a high- quality antenna and receiver. For applications requiring even greater accuracy, augmentation can offer significant benefits. Calian supports this through its software development kits (SDKs), which enable developers to enhance system performance and unlock advanced positioning capabilities. Navigating with precision Calian’s high-precision integrated smart GNSS antennas combine advanced antenna technology with high-end GNSS receivers, offering a reliable solution for demanding positioning and timing applications. These antennas address key RF design challenges – such as multi- constellation, multi-frequency compatibility, and interference mitigation – that can otherwise compromise GNSS performance.

Expert-level solutions Cm-level positioning is susceptible to in-band frequency interference from common system elements such as high-speed buses and other RF emitters. Smaller design teams don’t have the expertise to deal with the performance degradation that can occur. With these accuracy requirements rapidly expanding, designers without experience are poorly equipped to anticipate the effect it can have on their projects. Smart GNSS antennas not only mitigate this problem, they also provide a pathway to easy system upgrades when new PNT technologies come online.

Smart GNSS antennas: a better way to design positioning, navigation and timing into your project

Calian’s Dual-Band High- Performance Global Navigation Satellite Systems (GNSS) Antennas offer a plug-and-play solution that supports future-proofing for Positioning, Navigation, and Timing (PNT) enhancements via a digital interface. These antennas are designed to adapt easily to evolving PNT requirements, ensuring long- term usability and streamlined integration. This article focuses on specific models within the range: the TW5384 (Figure 1, left), TW5386 ,

It outlines the performance improvements these products deliver, along with the key features that make them reliable and competitive choices within the GNSS antenna market. Successful GNSS The use of GNSS to provide PNT has become widespread across countless types of systems. Its success has made GNSS a foundational element in virtually all mobility applications – a sector that continues to grow rapidly.

implemented by pairing a GNSS receiver module – such as the u-blox F9 series – with a high- performance GNSS antenna. The receiver is typically mounted on the system’s control board and connected to the external antenna using standard connectors and coaxial cable. While this setup has proven highly effective for single-band GNSS applications with modest accuracy requirements, developers often underestimate the increased complexity involved when transitioning to PNT solutions that demand centimeter-level precision.

Calian’s smart antennas are designed and manufactured to meet high standards of

performance and reliability. They are ready to use straight out of the box, providing impressive accuracy – typically less than 50cm –

TW5387 , TW5390, TW5790 , TW5794 , TW5394, and the HCS885XF (Figure 1, right).

In most designs, this capability is

we get technical

36

37

Powered by