G. Gelli et L. Izzo, MINIMUM-REDUNDANCY LINEAR ARRAYS FOR CYCLOSTATIONARITY-BASED SOURCE LOCATION, IEEE transactions on signal processing, 45(10), 1997, pp. 2605-2608
The problem of designing minimum-redundancy linear arrays (MRLA's) and
appropriate augmentation techniques to be utilized with cyclostationa
rity-exploiting (cyclic) methods for source location is addressed, The
MRLA geometries proposed in the literature for the conventional case,
which apply equally well when the signals of interest exhibit cyclost
ationarity are not appropriate when they exhibit conjugate cyclostatio
narity, In this case, the problem of finding optimal MRLA's is restate
d as the problem of number theory that is commonly referred to as the
postage stamp problem. Results of computer simulations show that in de
nsely crowded environments, the use of cyclic methods with MRLA geomet
ries and appropriate matrix augmentation techniques can offer a signif
icant performance improvement on cyclic methods that do not resort to
matrix augmentation techniques.