“…The initial estimate for 0 may be obtained by relate these waveform estimates with the known wave-using the angle estimates resulting from Method A above forms. The estimated waveforms of the incident signals or from other computationally efficient techniques such as are obtained from #A, k = 1, 2, , K, as follows [8]: MUSIC, ESPRIT, or others [8], [9], [16). We let (14) a -a.…”