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Parameters used for GPU-based sparse matrix multiplication in passive acoustic mapping.
| Symbol | Parameter | Value / Units |
|---|---|---|
| Nx | Lateral map size | 128 pixels |
| Nz | Axial map size | 2,000 pixels |
| NT | Integrated samples | 10 – 2,000 samples |
| Ti | Integration time | 1.44 – 96.1 μs |
| Z | Acquired RF data samples per channel | 2,000 samples |
| N | Number of array elements | 128 |
| fs | Sampling frequency | 20.8 MHz |
| n | Assigned number of transducer element or channel | 1–128 |
| l | Iteration number of the standard basis vector | 1–256,000 |
