Performance Analysis of FOC based DOA on Nested Array Elements
Bhavya Bhardwaj, Greeshma Prabha, S Natarajamani · 2021 IEEE Indian Conference on Antennas and Propagation (InCAP) · 2021
Estimation of Direction of Arrival (DOA) is an important topic of research in Signal processing. Most commonly used DOA algorithms are presented for uniform linear arrays. In this paper, we will consider the performance of FOC-based DOA on a nested array. Contrary to the standard MUSIC algorithm which uses the covariance matrix to calculate the DOA, the FOC method uses the Fourth Order Cumulant Matrix derived from the signal to calculate the DOA. Using the FOC improves the precision and the number of signals that can be uniquely identified.