commaai / commaai/laika

antenna on roof and antenna in car difference

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#167 0 comments 0 reactions 0 assignees View on GitHub
Dominant language
Python
Stars
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Forks
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Description

dear laika community,

I am a GNSS researcher and a possible electromagnetic explanation for the difference between measurements taken with an "open" antenna on a metallic car roof and measurements taken inside the vehicle are to do with the style of the antenna and the ground plane

Essentially placing an antenna on a metal roof (within a wavelength of say GPS L1) will introduce re-radiation, pattern distortion and phase center variation

If anybody wants to talk about antenna phase centre calibration (particularly with respect to RTK applications) I am interested

I am a new user of this software and keen to understand more about its design/structure

regards
fugir

Contributor guide

No contributing guide indexed for this repository

Research direction

The issue contains a GNSS antenna-measurement discussion rather than a defined change, and it names no files, tests, or entry points. Start by clarifying whether a Laika feature or documentation update is wanted, then identify the relevant GNSS processing area and acceptance criteria before estimating the work.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Documentation
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
10/100

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