Abstract
The authors present compact closed-form formulas for the Cramer-Rao bound corresponding to the joint estimation of the directions-of-arrival, the signal covariance matrix, and the noise variance. Using these formulas the authors investigate the effect of signal correlation on the achievable accuracy of direction finding systems in a correlated signal environment. As expected, estimation accuracy decreases with increasing correlation magnitude. Correlation phase has a strong effect on DOA estimation accuracy under certain conditions (small aperture, high correlation magnitude).
| Original language | English |
|---|---|
| Pages (from-to) | 941-945 |
| Number of pages | 5 |
| Journal | Conference Record - Asilomar Conference on Circuits, Systems & Computers |
| Volume | 2 |
| State | Published - 1991 |
| Event | 24th Asilomar Conference on Signals, Systems and Computers Part 2 (of 2) - Pacific Grove, CA, USA Duration: 5 Nov 1990 → 7 Nov 1990 |