Double-gain backscatter modulation based on chirp spread spectrum signals.
Marc Lazaro MartiAntonio LázaroRamon Maria VillarinoDavid Girbau SalaPublished in: RFID-TA (2022)
Keyphrases
- spread spectrum
- direct sequence spread spectrum
- instantaneous frequency
- fractional fourier transform
- frequency modulation
- frequency hopping
- image watermarking
- transform domain
- data hiding
- fourier transform
- frequency domain
- watermarking algorithm
- received signal
- signal processing
- digital watermarking
- amplitude modulation
- bit error rate
- ofdm system
- watermarking scheme
- spatial domain
- multiresolution
- pattern recognition
- feature vectors