Title :
On the resolution capacity of wideband sensor arrays: further results
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
The fundamental limits on the maximum number Dmax of cochannel wideband emitters uniquely resolvable by a passive K-element sensor array are studied. It is shown that for uncorrelated emitters Dmax is only O(K √L), where L is the measurement time-bandwidth product. These results extend the author´s recent result, that for a uniform linear array with uncorrelated cochannel wideband emitters Dmax≈K L/2. Hence, Dmax of a given array for cochannel wideband signals is essentially limited only by the observation interval, rather than by the number of sensors
Keywords :
detectors; signal processing; cochannel wideband emitters; cochannel wideband signals; measurement time-bandwidth product; observation interval; passive sensor array; resolution capacity; uncorrelated emitters; uniform linear array; wideband sensor arrays; Bandwidth; Baseband; Capacitive sensors; Data models; Environmental economics; Government; Narrowband; Sensor arrays; Signal resolution; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150671