A tree-structured DFT filter bank based spectrum sensor for estimation of radio channel edge frequencies in military wideband receivers.
M. NarendarA. Prasad VinodA. S. MadhukumarAnoop Kumar KrishnaPublished in: ISSPA (2010)
Keyphrases
- filter bank
- spectrum sensing
- cognitive radio
- wireless communication
- frequency domain
- subband
- image coding
- multiscale
- perfect reconstruction
- wavelet packet
- low pass
- discrete cosine transform
- multiresolution
- wireless networks
- signal processing
- edge detection
- wireless systems
- reconstruction error
- wireless channels
- spatial domain
- fourier transform
- wavelet filters
- tree structure
- frequency band
- image compression
- lifting scheme
- wavelet decomposition
- pattern recognition
- feature selection
- computationally efficient
- edge information
- bit rate