A PC with sound card as an audio waveform generator, a two-channel digital oscilloscope and a spectrum analyzer.
Marion O. HaglerDavid J. MehrlPublished in: IEEE Trans. Educ. (2001)
Keyphrases
- frequency spectrum
- audio signal
- digital audio
- smart card
- multi channel
- multimedia
- audio content
- digital video
- spectrum sensing
- low cost
- cognitive radio networks
- frequency band
- audio stream
- pseudorandom
- audio features
- audio visual
- visual information
- hidden markov models
- sound source
- digital technologies
- cross correlation
- communication channels
- personal computer
- data acquisition
- signal processing