Table 2 Computational complexity of different methods
From: Non-circular signal DOA estimation based on coprime array MIMO radar
Method | Complexity | Complex multiplication |
|---|---|---|
2D CA MUSIC | O[4q4(L − K) + 16q6 + 8n(q4 + q2)] | 1.3 × 1011 |
NRC-MIMO MUSIC | O[4q4(L − K) + 16q6 + n2(4q4 + 2q2)] | 5.7 × 107 |