Active sonar detection using adaptive time-frequency feature

  title={Active sonar detection using adaptive time-frequency feature},
  author={Zou Lina and Tan Ke and Zha Jilin},
  journal={2016 IEEE/OES China Ocean Acoustics (COA)},
In the complex variable shallow water acoustic channel, the regular signal emitted by the active sonar would propagate through multiple paths and scattered by the target. Compared with the transmitted signal, the echo signal has a time delay and Doppler spread. This leads to a great decrease of the correlation between the copy vector of the matched filter and the target echo, which degrades target detection and estimation performance. This paper uses the time-frequency feature extracted from… CONTINUE READING