Optimized self-matching chaotic pulse position modulation excitation sequences for non-crosstalk ultrasonic ranging system

摘要：

Chaotic Pulse Position Modulation (CPPM) excitation sequences have been used as transmitted signal to help eliminate crosstalk between multichannel ultrasonic transducers.The CPPM excitation sequences have good echo correlation characteristics,but the spectra of CPPM sequences are not totally matched to the ultrasonic ranging system.To make full use of the bandwidth resources of the ultrasonic ranging system,the self-matching CPPM excitation sequences are proposed to trigger ultrasonic transducers.To get the best echo correlation characteristics,a genetic algorithm is adopted to optimize the self-matching CPPM excitation sequences.The proposed methods are illustrated by an ultrasonic ranging system consisting of two-channel Polaroid 600 series electrostatic transducers.

关键词： ultrasonic ranging system crosstalk chaotic pulse position modulation (CPPM) genetic algorithm spectrum matching

作者: Zhen-Jing Yao Tao Gao Jing-Song Yang

作者单位: Dept.of Disaster Prevention Instrument Institute of Disaster Prevention Science and Technology Sanhe Electronic Information Products Inspection Institute of Hebei Province Shijiazhuang,Hebei,China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer and Network Technology(ICCNT 2011)(2011第三届IEEE计算机与网络技术国际会议)

会议地点: 太原

会议语种:英文

页码: 611-615

在线出版日期: 2011-02-26（万方平台首次上网日期，不代表论文的发表时间）