Research Article

Nonuniformly Spaced Array with the Direct Data Domain Method for 2D Angle-of-Arrival Measurement in Electronic Support Measures Application from 6 to 18 GHz

Figure 13

The histograms of Az (left column) and El (right column) estimation errors, when −20 dB ≤ SNR ≤ −10 dB with 1025 snapshots. (a, b) WF-1; (c, d) WF-2; (e, f) WF-3; (g, h) WF-4.