Time and Frequency Varying Noise Floor Estimation for Spectrum Usage Measurement.
Hiroki IwataKenta UmebayashiAhmed Al-TahmeesschiMiguel López-BenítezJanne J. LehtomäkiPublished in: WCNC Workshops (2019)
Keyphrases
- measurement error
- power spectrum
- low frequency
- frequency analysis
- weak signal detection
- random noise
- noisy data
- power spectra
- frequency spectrum
- estimation accuracy
- image noise
- varying degrees
- gaussian noise
- noise level
- signal to noise ratio
- frequency domain
- maximum likelihood estimation
- input data
- estimation error
- image structure
- noise reduction
- signal subspace
- high frequency
- weak signal
- accurate estimation
- estimation algorithm
- frequency response
- noisy images
- instantaneous frequency