spectral analysis
Examining wavelength composition
Spectral analysis is the study of how something breaks down across a range of frequencies or wavelengths.
In physics, it examines light or radiation to identify chemical compositions—each element produces a unique spectral signature.
In signal processing and statistics, it decomposes complex data into component frequencies: Spectral analysis of the audio revealed hidden patterns.
The technique spans astronomy, music, medicine, and engineering.
- eigenvectorsVectors scaled by matrices
- frequencyRate of recurrence
- spectroscopyStudy of light-matter interaction
- signal processingMathematical manipulation of waveforms
- white noiseConstant random sound
diffraction · redshift · wavelength · light waves · resonance · peaks · radiation · rainbow · detector · bands · chemical fingerprint · oscillation · prism · fingerprint · light · signal · decomposition · eigenvalues
spectral analysisvisual inspection
Examination by sight alone
gross examination · direct observation · physical examination