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Advances in Acoustics and Vibration
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Special Issues
Advances in Acoustics and Vibration
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2014
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Article
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Tab 1
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Research Article
Doppler Velocity Estimation of Overlapping Linear-Period-Modulated Ultrasonic Waves Based on an Expectation-Maximization Algorithm
Table 1
Estimation results for the two overlapping LPM ultrasonic echoes with 10 dB SNR.
LPM ultrasonic signals
First echo
Second echo
Actual velocities (m/s)
−5
3.5
3.6
−1.6
3.3
2
Estimated velocities (m/s)
−4.95
3.55
3.65
−1.65
3.3
1.95