Wavelet modulation is a signaling technique where data is mapped onto a set of orthogonal wavelet functions rather than traditional sinusoidal carriers. Because wavelets are localized in both time and frequency, this method provides high resilience against multipath fading and interference. It is used in specialized high-speed data transmission systems operating in noisy environments.
We're testing wavelet modulation on the powerline network to overcome the severe impulse noise.
Related terms
OFDM
Orthogonal Frequency Division Multiplexing, a digital transmission method using multiple subcarriers.
Multipath
The phenomenon where a transmitted radio signal reaches a receiver by two or more separate paths.
Time-frequency analysis
A signal processing method that evaluates spectral properties alongside their temporal occurrence.