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一种新的远距离超声测障传感器时变增益电路

更新时间:2020-06-23 14:12:51 大小:575K 上传用户:守着阳光1985查看TA发布的资源 标签:传感器 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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在地面自主车辆的导航与控制研究中,远距离超声传感器对于障碍检测具有重要意义。针对加大发射功率和减小死区距离,提高探测灵敏度和信号饱和、自激振荡之间的矛盾,提出了一种基于TL026控制芯片的超声传感器时变增益电路设计方案,并在此基础上实现了远距离超声测距系统。野外环境中的实验结果表明,时变增益方案显著提高了超声传感器的有效探测范围。

In the research area of the navigation and control of Autonomous Land Vehicle (ALV), it's believed that large range sonar sensor is going to bring significant impact on the obstacle detection technology. A new time varying gain scheme for the sonar sensor is designed to overcome both the conflict between magnifying the transmit power and reducing the blind distance, and the conflict be- tween improving the detection sensitivity and avoiding the saturation and the vibration of the sonar signal, which is based on TL026 control chip. The circuit scheme is implemented and adopted in the development of the large range sonar obstacle detection system. Field experiment results show that the effective detection range of the sonar sensor is significantly enlarged.

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一种新的远距离超声测障传感器时变增益电路.pdf 575K

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