|
|||||
|
|
| 脉冲压缩技术在水声测深中的应用 | |
| 引用本文： | 李建立,刘纪元,焦学峰.脉冲压缩技术在水声测深中的应用[J].电子测量技术,2009,32(11):112-114. |
| 作者姓名： | 李建立 刘纪元 焦学峰 |
| 作者单位： | 1. 沈阳航空工业学院,沈阳,110136 2. 沈阳航空工业学院,沈阳,110136;中国科学院声学研究所,北京,100100 3. 北京航瑞博泰科技有限公司,北京,100102 |
| 摘 要： | 阐述脉冲压缩技术在明渠测深的应用。设计中采用线性调频信号作为发射信号，利用其对多普勒频偏信号不敏感行，可以解决因液面波动而引起的多普勒频偏问题。所以，在测深中捕获回波信号的能力较强。由于所用线性调频信号的中心频率较高（达1MHz），但其扫描的频带宽度仅有100kHz，故而引入了带通欠采样技术，这样不仅大大降低了后端的数据处理压力，而且简化系统设计、节约了成本。文章最后用实验给予了验证，并对实验数据做了进一步分析。 |
| 关 键 词： | 脉冲压缩 延时估计 线性调频信号 |
Application of pulse compression technology in measurement of the depth using underwater acoustic |
|
| Li Jianli,Liu Jiyuan,Jiao Xuefeng.Application of pulse compression technology in measurement of the depth using underwater acoustic[J].Electronic Measurement Technology,2009,32(11):112-114. | |
| Authors: | Li Jianli Liu Jiyuan Jiao Xuefeng |
| Affiliation: | Li Jianli Liu Jiyuan Jiao Xuefeng(1. School of Electronic and Information Engineering,Shenyang Institute of Aeronautical Angineering, Shenyang 110136; 2. Institute of Acoustics. Chinese Academy of Seiences,Beijing 100100; 3. BeiJing Hang Rui Bo Tai Technology Co. , Ltd. , Beijing 100102) |
| Abstract: | In this paper,pulse compression technology in the open channel sounding applications. The design of a linear FM signal as a transmission signal,using its line is not sensitive to Doppler shift signal can be resolved due to fluctuations in liquid level caused by Doppler shift problem. So,in sounding the ability to capture a strong echo signal. Because the linear FM signal center frequency is high (up to 1 MHz),but the scan bandwidth is only 100 kHz,Guer bandpass due to the introduction of sampling techniques... |
| Keywords: | Pulse compression LFM Sounding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
