Hardware Acceleration of Beamforming in a UWB Imaging Unit for Breast Cancer Detection

Table 4

Hardware execution time over 14485 voxels, with 9 antennas and 16 ns clock period, and speed-up with respect to a software execution requiring 𝑇_SW=12.8 s.

𝑁FIR	𝑁ITER	𝑇exe [ms]	Speed-up
1	9	806.39	15.87
2	5	553.36	23.13
3	3	425.81	30.06
4	3	426.50	30.01
5	2	362.49	35.31
6	2	362.49	35.31
7	2	362.49	35.31
8	2	362.95	35.27
9	1	298.71	42.85