At embedded world, Metirionic conducted a public demonstration of distance and angle estimation using Bluetooth® Channel Sounding measurements. The implementation uses the Metirionic Advanced Ranging Stack (MARS) with a quad-antenna array to estimate range and bearing from a single Bluetooth Channel Sounding procedure.
The system estimates the Channel Impulse Response (CIR) to characterize indoor multipath conditions. Signal processing techniques are used to identify the direct path and reduce reflection-related errors. Channel Sounding PCT measurements (I/Q terms) are processed to support applications such as secure access and industrial systems.
Metirionic provides signal-processing software for several hardware platforms, including Nordic Semiconductor Bluetooth LE solutions and Synaptics Veros WiFi/Bluetooth chipsets. The company also works with partners including Ezurio, onceLabs, and Ellisys on systems that estimate user distance and spatial context, including applications such as digital keys and smart building access.
“Bluetooth Channel Sounding is a transformative capability, though the leap from raw chipset output to a reliable commercial product demands advanced signal processing,” said Attila Romer, Managing Director at Metirionic. “MARS serves as the essential glue that translates complex real-world RF environments into performance that delivers across a variety of partner platforms. By enabling the industry’s first simultaneous distance and angle solution, we are giving developers the tools to build beyond proximity detection, creating spatial-aware applications that can accurately determine a user’s position with sub-meter accuracy.”
The demonstrations at Embedded World show the technology across multiple hardware platforms. One demonstration uses MARS with a quad-antenna initiator based on Nordic’s nRF54L15 chipset on an Ezurio module to estimate distance and angle simultaneously, with spatial data displayed through the Metirionic Channel Sounding Evaluation application.
Another demonstration shows a secure access alarm system using the Synaptics Veros connectivity chipset and Astra IoT platform, where the alarm panel processes signals locally to determine proximity and perform automated disarming when a user approaches with a smartphone.
Metirionic is also showing Ezurio’s dual-antenna development kits based on the nRF54L15 chipset, supported by Metirionic software and evaluation tools for spatial diversity testing.
A Bluetooth Channel Sounding door lock developed by Bauer Products, with software support from onceLabs, demonstrates a commercial application using MARS on Nordic’s nRF54L15 chipset.
In collaboration with Ellisys, Metirionic is also demonstrating how the Bluetooth Vanguard analysis system captures raw PCT (I/Q) data, which is then processed by the Metirionic evaluation application to generate positioning information for development and validation.
Metirionic provides Bluetooth Channel Sounding development support through positioning algorithms (MARS), Channel Sounding evaluation software, and engineering services, working with silicon vendors, module suppliers including Ezurio, Minew, Raytac, and Fanstel, and other partners to support product development.
Click here to learn more about Metitionic's Channel Sounding evaluation application.
