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Table 3 Percentage NMSEs in recovery of a quadratic phase component from a noisy input signal: Average NMSE values in percentage achieved by the proposed TCR, interpolated half-band Weyl and full-band suboptimal TF projection filters in recovery of the quadratic phase component in Equation (39), listed versus input SNR values

From: Filtering in the joint time/chirp-rate domain for separation of quadratic and cubic phase chirp signals

SNR (dB)

20

15

10

5

0

−3

−5

TCR

0.2793

0.2965

0.3229

0.3814

0.7245

1.5819

2.7563

4.0977

Weyl

0.2795

0.2968

0.3255

0.4078

0.6722

1.5763

2.7162

4.2175

TF projection

0.9992

1.0166

1.0439

1.1320

1.4663

2.3844

3.7129

4.7296