Method and Apparatus for Active Sonar Detection Enhancement
Patent, filed 8 Apr 2003
NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI
Pagination or Media Count:
The present invention provides a method and apparatus for enhancing active sonar signal detection by estimating the channeltarget response utilizing measured values of the excitation signals and received signals. A WienerVolterra series expansion for the excitation and received signals is used as a model, wherein a time invariant environment is assumed, thereby disregarding all random noise contributions. The WienerVolterra kernels are then determined in a nonlinear processor using a method of correlations which is designed to produce the kernels utilizing only measured white Gaussian excitation signals and received signals. The kernels can be used to give an optimum correlation between the excitation signals and the received signals.
- Acoustic Detection and Detectors