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| FM synthesis parameters | A-scan parameters | Adipose | Tumor |
|---|---|---|---|
| Carrier frequency (fc) | Slope | Low | High |
| Modulation index (M) | Low frequency content (I) | High | Low |
| Amplitude (A) | Middle frequency content (II) | Moderate | Moderate |
| Modulation frequency (fm) | High frequency content (III) | Low | High |
Note: Roman numerals refer to frequency bands shown in Fig. 2.
