Non-Crosstalk Ultrasonic Ranging System Excited Using Chaotic Sine Frequency Modulated Sequences
Traditionally, most ultrasonic ranging systems are excited using pulse signals. A hardware platform of ultrasonic ranging system that is excited using a sine signal is presented. On the basis of the new hardware platform, the chaotic sine frequency modulation (CSFM) sequence is proposed to excite ultrasonic transducers. Correlation characteristics of the echo signals generated using the CSFM excitation sequences are analyzed, and the feasibility of using the CSFM sequence to eliminate ultrasonic crosstalk is validated. Preliminary experiments show that the proposed CSFM sequences could meet the requirement of non-crosstalk ultrasonic ranging systems.
ultrasonic ranging system ultrasonic crosstalk chaotic sine frequency modulation correlation characteristics
Yu-Long Song Qing-Hao Meng Jiao-Jiao Zhang Ming Zeng
School of Electrical Engineering and Automation, Tianjin University, Tianjin, China
国际会议
武汉
英文
373-377
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）