RadioAstronomySoftwareGroup / RadioAstronomySoftwareGroup/pyuvdata
more frequency interpolation modes for beams
Open
Nobody has claimed this yet.
beams
enhancement
- Dominant language
- Python
- Stars
- 102
- Forks
- 35
- Avg merge
- 1d 20h
- Merged PRs (30d)
- 14
Description
uvbeam, as implemented, uses interp1d with default args. There are a number of instances where more customized frequency interpolation may be desirable. Two primary modes that may be desirable include:
- Nearest neighbor inerpolation -- allows for monochromatic beams.
- Fourier interpolation -- interpolate using fourier modes specified by the DFT of the beam along each LoS (avoids introducing frequency-interpolation artifacts into the delay-kernel).
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating uvbeam's use of interp1d and reading how frequency interpolation is currently applied along each line of sight. Determine the project’s existing testing entry points for uvbeam, then assess acceptance for nearest-neighbor interpolation and Fourier interpolation without introducing delay-kernel artifacts.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100