Title :
Optimum FIR array filters
Author :
Williamson, Darrell ; Teo, Kok Lay ; Musumeci, Phillip C.
Author_Institution :
Dept. of Syst. Eng., Australian Nat. Univ., Canberra, ACT, Australia
fDate :
8/1/1988 12:00:00 AM
Abstract :
An optimum finite impulse response (FIR) filter bank is derived that recovers a desired signal from an array of sensors in the presence of random sensor noise and one or more coherent interfering noise sources. The required filter order is determined by the relative delays between the signal and coherent noise at each sensor, and is independent of the time duration of either the signal or coherent noise. Usually, the presence of only three sensors is sufficient to be able to eliminate the effect of coherent noise sources provided the filter order M is sufficiently large
Keywords :
digital filters; filtering and prediction theory; random noise; coherent interfering noise sources; digital filter; finite impulse response filter; optimum FIR array filter; random sensor noise; sensors; Astronomy; Australia; Delay effects; Filter bank; Finite impulse response filter; Radar signal processing; Seismology; Sensor arrays; Signal processing; Sonar;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
