##  [Data Fusion](/data-fusion) 

  ##  [Data Fusion](https://physics.quantumdictionary.io/data-fusion-0) 

  

 [![Physics](/sites/default/files/styles/large/public/2026-01/Physics.png.webp?itok=X0HFpi2d)](/topic-specific-dictionaries/natural-formal-sciences/physics)

- Natural & Formal Sciences -

**Physics Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A set of methods that combine heterogeneous observational datasets (differing in wavelength, resolution, sampling, noise and systematic properties) into a unified representation or joint model so as to improve signal recovery, parameter estimation, or interpretation while propagating and accounting for measurement uncertainties and selection effects.