Minimum Array Elements for Resolution of Several Direction of Arrival Estimation Methods in Various Noise-Level Environments
Abstract
The resolution of a Direction of Arrival (DOA) estimation algorithm is determined based on its capability to resolve two closely spaced signals. In this paper, authors present
and discuss the minimum number of array elements needed
for the resolution of nearby sources in several DOA estimation methods. In the real world, the informative signals are
corrupted by Additive White Gaussian Noise (AWGN). Thus,
a higher signal-to-noise ratio (SNR) offers a better resolution.
Therefore, we show the performance of each method by applying the algorithms in different noise level environments.