Delay and Doppler Estimation by Time-Space Partition of the Array Data

Ehud Weinstein, Doron Kletter

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)1523-1535
Number of pages13
JournalIEEE Transactions on Acoustics, Speech, and Signal Processing
Issue number6
StatePublished - Dec 1983
Externally publishedYes


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