Research Article
DOA Estimation for Highly Correlated and Coherent Multipath Signals with Ultralow SNRs
Table 2
Multisnapshots array signal.
| | Segments | 1 | 2 | … | K2 |
| | Subsnapshots | 1∼K1 | K1+1∼2K1 | … | 1 (K2–1)K1+1∼K2K1 | | OAS | x (1∼K1) | x (K1+1∼2K1) | … | x[(K2–1)K1+1∼K2K1] | | Direct path | s (1∼K1) | s (K1+1∼2K1) | … | s[(K2–1)K1+1∼K2K1] | | Correlation | rK1 (1, τ) | | … | rK1 (K2, τ) |
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