Step 0.3: P(k) from 21cmFAST

[steven-murray]

This test is similar to #23 and #7, in that it tests that pspec is able to recover a given P(k) without noise or foregrounds. In this case, the P(k) is non-Gaussian and comes from a 21cmFAST realisation.

• Simulation Component: EoR, from 21cmFAST
• Simulators: PRISim
• Pipeline Components: pspec
• Depends on: Formally, depends on Step -1.2: PRISim Validation #36, though we can perform the test before that is addressed.

Why this test is required

We would like to test that even with a P(k) with realistic "features", and whose distribution is non-Gaussian, that pspec still recovers P(k) to the same accuracy.

Summary

A brief step-by-step description of the proposed test follows:

• Compute a 21cmFAST lightcone
• Use PRISim and it's built-in lightcone tiler to produce visibilities
• Analyse visibilities with pspec.

Simulation Details

• Freq. range:
• Channel width:
• Baseline/antenna configuration:
• Total integration time:
• Number of realisations:

Criteria for Success

• P(k) should match known input to within 1%.