Digital Instantaneous Frequency Measurement of a Real Sinusoid Based on Three Sub-Nyquist Sampling Channels

Table 1

Parameters corresponding to frequency sub-bands.

Number	fc	Parameters
		m1	m2	m3	b1	b2	b3
1	[0, fs1/2)	0	0	0	1	1	1
2	[fs1/2, fs2/2)	0	0	1	1	1	−1
3	[fs2/2, fs3/2)	0	1	1	1	−1	−1
4	[fs3/2, fs1)	1	1	1	−1	−1	−1
5	[fs1, fs2)	1	1	1	−1	−1	1
6	[fs2, fs3)	1	1	1	−1	1	1
7	[fs3, 3fs1/2)	1	1	1	1	1	1
8	[3fs1/2, 3fs2/2)	1	1	2	1	1	−1
9	[3fs2/2, 3fs3/2)	1	2	2	1	−1	−1
...	...	...	...	...	...	...	...