TY - GEN
T1 - Computationally efficient adaptive system identification in subbands with intersubband tap assignment for undermodelled problems
AU - Weiss, Stephan
AU - Sorgel, Uwe
AU - Stewart, Robert
PY - 1997
Y1 - 1997
N2 - This paper presents an efficient approach to adaptive system identification in undermodelled cases, i.e. when the impulse response to be identified is too long to be represented by an adaptive FIR filter operating within the computational benchmarks of a DSP chip. Beyond computational savings gained from adaptive filtering in decimated subbands, the subband approach enables to use different filter lengths in the frequency bands through distribution of taps from an overall number of filter weights determined by the computational benchmark. Compared to a fullband filter of the same complexity, this method can greatly enhance the model representation of long impulse responses.
AB - This paper presents an efficient approach to adaptive system identification in undermodelled cases, i.e. when the impulse response to be identified is too long to be represented by an adaptive FIR filter operating within the computational benchmarks of a DSP chip. Beyond computational savings gained from adaptive filtering in decimated subbands, the subband approach enables to use different filter lengths in the frequency bands through distribution of taps from an overall number of filter weights determined by the computational benchmark. Compared to a fullband filter of the same complexity, this method can greatly enhance the model representation of long impulse responses.
KW - adaptive filters
KW - adaptive signal processing
KW - distributed computing
KW - signal synthesis
KW - computationally efficient
KW - adaptive system identification
KW - subbands
KW - intersubband tap assignment
KW - undermodelled problems
U2 - 10.1109/ACSSC.1996.599058
DO - 10.1109/ACSSC.1996.599058
M3 - Conference contribution book
SN - 0818676469
T3 - Conference record of the asilomar conference on signals, systems and computers
SP - 818
EP - 822
BT - 30th asilomar conference on signals, systems & computers
A2 - Singh, A.
PB - IEEE
CY - New York
T2 - 30th Asilomar Conference on Signals, Systems, and Computers
Y2 - 3 November 1996 through 6 November 1996
ER -