基于调幅的多频超声系统进行准确性距离测量-英文翻译.rar
基于调幅的多频超声系统进行准确性距离测量-英文翻译,abstract-withconventional time-of-flightsonar rangingsys-tems,itisdifficult to obtainahighrangingaccuracy dueto the5nite bandwidthof thetransducerusedandtheseri...
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Abstract-With conventional time-of-flight sonar ranging sys-tems, it is difficult to obtain a high ranging accuracy due to the 5nite bandwidth of the transducer used and the serious acoustic attenuation in the air for the high acoustic fkequencies. In this paper a multifrequency amplitude modulation (AM)-based
sonar system is exploited to obtain information about the high-resolution distance measurement for robotic ranging applications. The target distance is obtained by measuring the linear phase shift of the reflected acoustic waves with respect to the reference signal. In order to analyze the ranging error two theoretical
formulations are presented for characterization of the noisy phase measurement. The error effects on the phase measurement of the distorted input waveform due to the acoustic cross coupling are detailed, leading to the development of a multitransmitter sensing conliguration. Since multifrequency is used, the nature of
the target surface may bring about a certain ranging ambgrity to the system. The error effect of the rough surface is also analyzed at the end of the paper
摘要：传统的时间飞行声纳测距系统，是很难获得高精度测距。这是由于传感器使用有限的带宽和高频率的声波在空气中的严重衰减。本文提出了多频调幅（AM）为基础的声纳系统是用来获取高分辨率机器人广泛应用在距离测量的有关信息。目标距离是通过测量线性相位对于参考的反射声波信号。为了分析两个理论测距误差公式中而提出的噪音相位测量误差对输入波形影响的特性，由于交叉耦合受声波控制影响，所以导致传感器多配置发射机的研制。由于多频发生器的使用，其靶面性质对系统的影响可能会带来一定范围的含糊不清。误差粗略影响在文章最后进行了分析。
sonar system is exploited to obtain information about the high-resolution distance measurement for robotic ranging applications. The target distance is obtained by measuring the linear phase shift of the reflected acoustic waves with respect to the reference signal. In order to analyze the ranging error two theoretical
formulations are presented for characterization of the noisy phase measurement. The error effects on the phase measurement of the distorted input waveform due to the acoustic cross coupling are detailed, leading to the development of a multitransmitter sensing conliguration. Since multifrequency is used, the nature of
the target surface may bring about a certain ranging ambgrity to the system. The error effect of the rough surface is also analyzed at the end of the paper
摘要：传统的时间飞行声纳测距系统，是很难获得高精度测距。这是由于传感器使用有限的带宽和高频率的声波在空气中的严重衰减。本文提出了多频调幅（AM）为基础的声纳系统是用来获取高分辨率机器人广泛应用在距离测量的有关信息。目标距离是通过测量线性相位对于参考的反射声波信号。为了分析两个理论测距误差公式中而提出的噪音相位测量误差对输入波形影响的特性，由于交叉耦合受声波控制影响，所以导致传感器多配置发射机的研制。由于多频发生器的使用，其靶面性质对系统的影响可能会带来一定范围的含糊不清。误差粗略影响在文章最后进行了分析。
