bluetooth@rafavi:/mnt/c/Windows/system32$ sudo systemctl start redis && sudo systemctl enable redis Failed to enable unit: Refusing to operate on alias name or linked unit file: redis.service bluetooth@rafavi:/mnt/c/Windows/system32$ systemctl start redis Failed to start redis.service: Interactive authentication required. See system logs and 'systemctl status redis.service' for details.

This example shows you how to calculate the 2-D or 3-D position of a Bluetooth® low energy (LE) node by implementing Bluetooth direction finding features and the triangulation-based location estimation technique by using Bluetooth® Toolbox™. The Bluetooth Core Specification 5.1 [2] introduced angle of arrival (AoA) and angle of departure (AoD) direction finding features to support centimeter-level accuracy in Bluetooth LE location finding.

Using this example, you can:

• Simulate the direction finding packet exchange between the Bluetooth LE node and each locator to estimate the angles between them.
• Estimate the location of Bluetooth LE node by using triangulation-based location estimation technique in an additive white Gaussian noise (AWGN) channel.
• Measure the positioning accuracy of the Bluetooth LE node related to the bit energy-to-noise density ratio (Eb/No).

星闪联盟是致力于全球化的产业联盟，目标是推动新一代无线短距通信技术SparkLink的创新和产业生态，承载智能汽车、智能家居、智能终端和智能制造等快速发展的新场景应用，满足极致性能需求。2020年9月22日，星闪联盟正式成立。