Tag

High Precision Navigation

0 views collected around this technical thread.

Amap Tech

Jul 16, 2019 · Fundamentals

Lane-Level Connection Relationship in High‑Precision Navigation Data Based on NDS

The article describes a workflow for generating lane‑level connection relationships in high‑precision navigation data using the NDS standard, detailing how lane groups and connector IDs are assigned uniquely within tiles and across a 9‑tile neighborhood for both NDS 2.5.2 and 2.5.4 versions.

High Precision NavigationNDSautonomous driving

0 likes · 7 min read

Lane-Level Connection Relationship in High‑Precision Navigation Data Based on NDS

Baidu Maps Tech Team

Nov 16, 2016 · Fundamentals

Why High‑Precision GPS Still Struggles in Urban Canyons and Tunnels

This article examines the principles of differential satellite positioning, the technical and environmental challenges that prevent centimeter‑level accuracy in dense urban areas, bridges, and tunnels, and explores practical workarounds and future visions for truly high‑precision navigation.

Differential PositioningGPSHigh Precision Navigation

0 likes · 18 min read

Why High‑Precision GPS Still Struggles in Urban Canyons and Tunnels