This paper presents an analytical evaluation of detection (determination of the number of sources) and estimation performances of narrowband signal-subspace processing for multiple-source direction finding. The probabilities of underestimating and overestimating the number of sources are derived, under asymptotic conditions, in terms of the choice of a penalty function and signal, noise and array parameters for the cases of at most two closely-spaced sources in the spatially white noise. A scalar measured is introduced for the evaluation of the quality of the estimated signalsubspace. Based on the statistics of this measure performance thresholds are demonstrated for the signal-to-noise ratio, angle separation and correlation between two equipowered sources.
|Original language||English (US)|
|Title of host publication||Conference Record - 19th Asilomar Conference on Circuits, Systems and Computers, ACSSC 1985|
|Editors||Donald E. Kirk|
|Publisher||IEEE Computer Society|
|Number of pages||5|
|State||Published - 1985|
|Event||19th Asilomar Conference on Circuits, Systems and Computers, ACSSC 1985 - Pacific Grove, United States|
Duration: Nov 6 1985 → Nov 8 1985
|Name||Conference Record - Asilomar Conference on Signals, Systems and Computers|
|Conference||19th Asilomar Conference on Circuits, Systems and Computers, ACSSC 1985|
|Period||11/6/85 → 11/8/85|
Bibliographical noteFunding Information:
This work was supported by the National Science Foundation under Grants ECS-8105962 and ECS-8414316.
© 1985 IEEE.