Research Article
Digital Instantaneous Frequency Measurement of a Real Sinusoid Based on Three Sub-Nyquist Sampling Channels
Table 4
Computation complexity comparison of the CRT and frequency-band division.
| Method | MULT. | DIV. | Mod. | Round. | ADD. | ABS. | Search numbers |
| Robust CRT [16] | 205 | 205 | 0 | 0 | 236 | 0 | 63 | Closed-form CRT [21] | 8 | 6 | 4 | 2 | 5 | 0 | 0 | Frequency-band division | 0 | 0 | 0 | 0 | 108 | 54 | 18 |
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Mod. represents a modular operation, Round. represents rounding integer operation, and ABS. represents absolute value operation.
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