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

Table 9

Array-3 probability of AoA estimation using 1025 snapshots (−20 dB ≤ SNR ≤ −10 dB and last line using 513 snapshots).

	Both Az and El, |Er| ≤ 1° |Er| ≤ 5°	Az, |Er| ≤ 1° |Er| ≤ 5°	El, |Er| ≤ 1° |Er| ≤ 5°
WF-1	3.33% 21.27%	7.14% 23.51%	17.46% 45.82%
WF-2	3.18% 20.74%	7.16% 23.14%	16.65% 45.60%
WF-3	3.18% 21.51%	7.21% 23.89%	17.68% 46.09%
WF-4	1.21% 9.10%	3.20% 11.76%	9.20% 31.07%
WF-4	1.05% 10.04%	3.32% 12.73%	9.36% 33.10%