A Direct Approach to Separate Forward-Scattered Waves from the Direct Blast in Doppler Domain for Forward-Scattering Detection

作者：He, Chuanlin^*; Yang, Kunde; Ma, Yuanliang; Lei, Bo

来源：Journal of Theoretical and Computational Acoustics, 2018, 26(1): UNSP 1750036.

DOI：10.1142/S2591728517500360

• Forward-scattering detection
• Doppler detection

Forward-scattered waves are often interfered with and overwhelmed by direct blasts when a submerged target crosses the source-receiver line. The approach named low Doppler analysis and recording gram (LODARCRAM) is developed to separate forward-scattered waves from direct blasts in the Doppler domain. This separation, which is based on the kinetic characteristic of the target and the procedure, is conducted using a sliding Blackman window combined with fast Fourier transform. The concept along with its application is validated using the data collected in a tank experiment. The moving target is recognized and identified by a tilt striation on LODARGRAM. Limitations of the LODARGRAM approach are also discussed.

• 出版日期2018-3
• 单位西北工业大学