Refinement Method for Weighting Scheme of Fully Spatial Beamformer

Table 3

The comparison value of attenuator factors between IDFT method and refinement method.

	Attenuation (dB)			Attenuation (dB)
Number of element	IDFT	Refinement	Number of element	IDFT	Refinement
1	22.78	18	9	21.47	18
2	6.83	7	10	0	0
3	21.47	18	11	16.80	17
4	5.87	6	12	6.83	7
5	6.83	7	13	5.87	6
6	16.80	17	14	21.47	18
7	0	0	15	6.83	7
8	21.47	18	16	22.78	18