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Sampling Parameters Optimization of the Data Acquisition for Ultrasonic Time of Flight Measurements

机译:采样参数优化超声波飞行测量超声波时间的测量

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An ultrasonic system using a pulse for time-of-flight (TOF) estimation from noisy echoes has been analyzed in paper. Simulation has been used as the sampling parameters influence evaluation tool. The precision of the time delay estimation using the direct correlation technique has been theoretically calculated and compared to the simulation results. The results indicate that sampling frequency selection is not important for TOF precision if noise spectral density is kept constant. ADC resolution influence on TOF estimation performance has also been analysed.
机译:在纸上分析了使用脉冲进行飞行时间(TOF)估计的超声波系统。模拟已被用作采样参数影响评估工具。使用直接相关技术的时间延迟估计的精度已经理解并与模拟结果相比。结果表明,如果噪声谱密度保持恒定,则采样频率选择对于TOF精度并不重要。还分析了ADC分辨率对TOF估计性能的影响。

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