A Partition Spatial Filtering Method for Acoustic Array Configuration

Table 2

Optimal parameters of partition array.

Parameters	Values
Number of subsections	7
Subsections’ microphones	9
Subsections’ grid points	45
Mainlobe width	7.2 degree
Maximum sidelobe level (MSL)	−12 dB
Sidelobe suppression ratio (SSR)	21.3
Rings radius	0.5, 1, 1.5, 2, 2.5, 3, 3.68, 4.42, 5.3, 6.1
Rings’ microphones	4, 4, 8, 4, 8, 4, 8, 8, 8, 8