Study on bistatic scattering characteristics of an ellipsoidal object

Multistatic sonar has the characteristics of traditional passive and active sonar, including good concealment performance, strong anti-interference ability, far-distance reaction, high positioning accuracy, the advantages of easy-to-optimization design, etc. Multistatic sonar will be the important direction for future development of active sonar. About the scattering characteristics of multistatic sonar targets, this paper establishes a bistatic sonar scattering model with ellipsoidal targets as an example. The variation of the target intensity with the incident angle is calculated under the condition of bistatic sonar. The concept of the equivalent incident angle is introduced to calculate the variation of the target intensity with it, and analyze the scattering characteristics. All the results provide theoretical basis for the underwater targets positioning, detection and identification by the multistatic sonar system.