Ultrawideband Discharge Source DOA Estimation Method Using Multiple Baseline Wideband Time-Domain Interferometry with Hilbert Transform

Figure 13

Experimental results of DOA estimation using the traditional time-domain method and proposed method under different baseline lengths with the following parameters: elevation angle = 24.10°, azimuth angle = 107.35°, and baseline length = 4 m. (a) RMSE of azimuth angle estimation and (b) RMSE of elevation angle estimation.

(a)

(b)