Raman self-frequency shift
Raman self-frequency-shift
shift frequency shift keying
Low frequency Raman scattering
Low-frequency Raman spectroscopy
Raman Frequency Conversion
ACOUSTIC EMISSION FREQUENCY SHIFT
Analysis by frequency shift
audio frequency shift keying
audio frequency shift modulation
audio frequency shift modulator
Audio frequency-shift modulated track circuit
BCFSK Binary Code Frequency Shift Keying
benchmarking programbinary frequency shift keying
BFSK Binary Frequency Shift Keying