Table 4 Comparison with previous studies on DOA estimation based on neural networks.
From: Super resolution DOA estimation based on deep neural network
Model | Validation signal angular distance | Spatial scope | Estimation error | Signal number | Max SNR difference | Antenna number |
|---|---|---|---|---|---|---|
Liu et al.28 | \(9.4^{\circ }\) | \([-60^{\circ }, 60^{\circ })\) | \(0.5^{\circ }\) | Fixed | 3 dB | 10 |
Huang et al.26 | Random | \([-90^{\circ }, 90^{\circ })\) | \(0.1^{\circ }\) | Fixed | 0 dB | 128 |
Our DNN | Random | \([-75^{\circ }, 75^{\circ })\) | \(0.1^{\circ }\) | Random | 15 dB | 8 |
