As an Advanced Semiconductor Systems Architect specializing in Navigation and Sensor Fusion, I have analyzed the provided material concerning the STMicroelectronics (ST) Tessio 6 GNSS receiver and the ASM 330 LH Inertial Measurement Unit (IMU). The context is a product demonstration from CES focusing on high-integrity positioning, navigation, and timing (PNT).
Abstract:
This presentation details the capabilities of the STMicroelectronics Tessio 6 quad-band GNSS receiver, often paired with the ASM 330 LH IMU, to deliver high-integrity positioning solutions, particularly against modern threats like jamming and spoofing. The Tessio 6 chipset is highly modular, supporting single-band through quad-band (quad-constellation) operation, and outputs raw measurements for host-based RTK applications, while also providing integrated, free-of-charge dead reckoning libraries and a precise timing clock. A critical feature for resiliency is independent L5 acquisition, as L1 is noted to be more susceptible to interference; a dedicated 'B' variant of the chip is available with enhanced safety monitors for high-integrity use cases. The product portfolio is rounded out by the Tessio 6 Plus (with a separate core for proprietary positioning algorithms) and two industry-standard footprint modules (Tessio 6LA and Tessio VIX 6A). The system achieves centimeter-level accuracy by leveraging a partner ecosystem, specifically citing SGNSS technology from Focal Point for multi-path mitigation and the use of a separate positioning engine (e.g., .1 Nav) running against raw measurements derived from the Tessio 6 for real-time comparison against a truth reference system.
Reviewing the Tessio 6/ASM 330 LH System: Centimeter-Level PNT Resiliency
00:00:08 CES Demonstration Focus: The presentation showcases the ST Tessio 6 Quad-band GNSS and ASM 330 LH IMU integration for enabling precise positioning, navigation, and timing (PNT).
00:00:24 Tessio 6 Modularity: The chipset is highly configurable, supporting operation from single-band up to quad-band (quad-constellation) modes.
00:00:44 Integrated Features: The device outputs raw measurements, includes an integrated dead reckoning library (provided free of charge), and offers a high-accuracy timing clock output.
00:00:56 Integrity & Resiliency: High integrity PNT is paramount against bad actors. Resiliency is enabled via independent L5 acquisition, mitigating risks associated with the more vulnerable L1 band (susceptible to jamming/spoofing).
Tessio 6 Plus: Features a separate core for running proprietary or RTK positioning algorithms.
Modules (Tessio 6LA/VIX 6A): Available in 54-pin and 24-pin packages, pin-compatible with existing market devices.
00:02:18 ASM 330 LH IMU: This Inertial Measurement Unit is ASIL capable and complements the GNSS solution, supporting sensor fusion for improved PNT continuity.
00:02:51 Centimeter Accuracy via Partners: Precise positioning is enabled through the partner ecosystem.
SGNSS (Focal Point): Enhances performance in urban canyons by eliminating multi-path signals and emphasizing direct line-of-sight signals.
RTK Enablement: Centimeter-level accuracy is achieved by utilizing the raw measurements from Tessio 6 with a partner solution (e.g., .1 Nav) that runs a positioning algorithm against a truth reference.
00:03:33 Live Demo Functionality: A live demonstration compares the Tessio 6 output against a truth reference, streaming the live results to a screen or tablet to validate the achieved precise positioning performance.