I've been burning things in the lab and reclassifying spectral signatures by my own system.

The spectral signature of olivine has been seen in the dust disks around young stars.

A modern "stealth" vehicle is designed from the outset to have a chosen spectral signature.

Justin might have had the idea carbon could be produced by stellar events, and found the spectral signature.

What is the spectral signature of the removed material?

An interpreter can document the amount of energy reflected from each at specific wavelengths to create a spectral signature.

That's the spectral signature he was looking for, not carbon 60.

Often, multivariate methods are used to separate spectral signatures of sample components.

The spectral signature of krypton can be observed to have several very sharp lines.

As a last step, they assign a class to each group (classification) by comparing with known spectral signatures.