Table 6.

RF HF-M&S results of AoA estimation RMSE (Deg) at other frequencies.

Freq (GHz)	Total Number of AoA Points Calculated	Number of Points Est. Error > 10 (deg)	Az and El (without Points Est. Error > 10 (deg))
2.00	10891	26	2.42	1.42
3.58	8889	7	0.95	0.29
7.12	6941	4	0.83	0.11
10.13	6152	4	0.88	0.20
13.17	5525	5	0.71	0.10
15.13	5233	7	0.79	0.30
18.00	4655	5	0.77	0.08

Note that, in reality, TARs were hardly operating at high frequencies, as most long range TARs use L- and S-band frequencies. Here we just used M&S to demonstrate the CS-based 2D AoA scheme can be used from 2 to 18 (GHz).