Accuracy of two dimensional interferometers

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Discussion Overview

The discussion revolves around the accuracy of two-dimensional interferometers, specifically in determining emitting direction using crossed linear arrays. Participants are exploring the mathematical formulation for angular error in this context.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant presents a formula for angular accuracy in one dimension and questions how it would extend to two dimensions with crossed interferometers.
  • Another participant expresses confusion regarding the physical setup and the specific goal of the inquiry.
  • A participant notes that the angular error formula provided is valid for one dimension and wonders about the combined angular error when using two crossed interferometers.
  • There is a clarification regarding the type of setup being discussed, specifically confirming it involves a pair of crossed linear arrays.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the formulation for two-dimensional accuracy, and there is some confusion regarding the physical setup and objectives of the discussion.

Contextual Notes

The discussion lacks clarity on the assumptions underlying the proposed formulas and the specific configurations of the interferometers being considered.

senmeis
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Hi,

the accuracy of interferometers for finding emitting direction in one direction is given as:

Δθ = Δφ•λ/(2pi•l•cosθ)

but what would it be if two dimensional accuracy is required, something like interferometer in crossing?

I thought this could be found somewhere in Internet, but I just don’t have luck.

Senmeis
 
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I don't understand the physical setup and what you are trying to find.
 
This angular error is only valid for one dimension. I wonder what is the combined angular error if two crossed inteferometers are used.

Senmeis
 
Are you suggesting a two dimensional (rectangular) array or just a pair of crossed linear arrays?
 
a pair of crossed linear arrays

Senmeis
 

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