TY - JOUR
T1 - Delay and Doppler Estimation by Time-Space Partition of the Array Data
AU - Weinstein, Ehud
AU - Kletter, Doron
PY - 1983/12
Y1 - 1983/12
N2 - An instrumentationally attractive technique for estimating the Doppler time-compression and its time derivatives is proposed and analyzed in this paper. The basic scheme consists of (M – 1) generalized cross correlators (GCC's) in parallel (where M is the number of sensors in the receiving array), each of which is implemented successively to generate a sequence of differential delay measurements. The resulting spatial-temporal differential delay data are then compressed into the estimates of the Doppler and its derivatives using a least squares (LS) filter. It is shown that for signal-to-noise ratio (SNR) conditions above the threshold level, the indicated two-step estimation procedure is very nearly optimal. When operating near the threshold point, however, the proposed scheme is only distinctly suboptimal.
AB - An instrumentationally attractive technique for estimating the Doppler time-compression and its time derivatives is proposed and analyzed in this paper. The basic scheme consists of (M – 1) generalized cross correlators (GCC's) in parallel (where M is the number of sensors in the receiving array), each of which is implemented successively to generate a sequence of differential delay measurements. The resulting spatial-temporal differential delay data are then compressed into the estimates of the Doppler and its derivatives using a least squares (LS) filter. It is shown that for signal-to-noise ratio (SNR) conditions above the threshold level, the indicated two-step estimation procedure is very nearly optimal. When operating near the threshold point, however, the proposed scheme is only distinctly suboptimal.
UR - http://www.scopus.com/inward/record.url?scp=0020910513&partnerID=8YFLogxK
U2 - 10.1109/TASSP.1983.1164243
DO - 10.1109/TASSP.1983.1164243
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AN - SCOPUS:0020910513
SN - 1053-587X
VL - 31
SP - 1523
EP - 1535
JO - IEEE Transactions on Signal Processing
JF - IEEE Transactions on Signal Processing
IS - 6
ER -