【作者】 徐祥； 方世良； 安良；

【Author】 XU Xiang;FANG Shi-liang;AN liang;Information Science and Engineering Academy, Southeast University;

【机构】 东南大学信息科学与工程学院；

【摘要】 脉冲压缩以其较大的作用距离和高的分辨率在信号处理中广泛应用。本文主要介绍了匹配滤波器的基本原理及其在ADCP底部测量中的应用。ADCP发射端发射已调制或编码的宽脉冲,在接收端,数字匹配滤波器对信号进行匹配处理,使得ADCP作用距离变大同时又提高了分辨率,大大改善了其性能。最后在DSP上实现,并通过在玄武湖上进行的试验表明脉冲压缩可以很好地运用在ADCP测底中。更多还原

【Abstract】 The pulse compression is widely used in signal processing because of its large operating range and better resolution. This paper describes the basic principles of digital matched filter and its application in the measurement of the bottom of the algorithm in ADCP. ADCP transmission side transmits encoded or modulated wide pulse, at the receiving side, the digital matched filter, matched to the signal processing, make the role of distance increases and improve the resolution. Finally, the DSP implementation, and through experiments on Xuanwu Lake shows good use of pulse compression so that the method can be applied in the measurement of the bottom of the ADCP.更多还原