Paper Info
Title
Adaptive detection and enhancement of closely spaced sinusoids using multirate techniques
Abstract
A structure that is useful for the detection of closely spaced multiple sinusoids is presented. Cascaded adaptive notch filters are used between M-fold decimators and interpolators. The proposed multirate structure is a single-input, multiple-output adaptive filter. It takes multiple sinusoids corrupted by Gaussian noise and produces the individual sinusoids at each of the outputs. A closed-form expression for the steady-state mean square error of the variable coefficient has been obtained. By making use of the frequency enhancement properties of the decimation, the structure makes high-resolution sinusoidal detection possible. The variance of error for the enhanced sinusoid is shown. Results of computer simulation confirm the theoretical predictions.<>
Year
DOI
Venue
1993
10.1109/ICASSP.1993.319519
Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference  
Keywords
Field
DocType
adaptive filters,cascade networks,interpolation,notch filters,random noise,signal detection,Gaussian noise,M-fold decimators,adaptive notch filters,closely spaced sinusoids,frequency enhancement,high-resolution sinusoidal detection,interpolators,multirate structure,simulation,steady-state mean square error
Detection theory,Control theory,Computer science,Mean squared error,Artificial intelligence,Adaptive filter,In-phase and quadrature components,Band-stop filter,Decimation,Pattern recognition,Algorithm,Transfer function,Gaussian noise
Conference
Volume
ISSN
ISBN
3
1520-6149
0-7803-0946-4
Citations 
PageRank 
References 
2
0.79
2
Authors
1
Name
Order
Citations
PageRank
Shotaro Nishimura1208.91