Three-dimensional ISAR imaging of maneuvering targets using three receivers

Area of Science:

• Radar Systems Engineering
• Signal Processing
• Target Imaging

Background:

• Conventional Inverse Synthetic Aperture Radar (ISAR) systems produce 2-D projections of 3-D objects.
• Image plane and cross-range scale determination in traditional ISAR requires target motion knowledge.
• Target motion relative to the line of sight (LOS) influences the projection plane.

Purpose of the Study:

• To propose a novel ISAR system capable of generating 3-D images.
• To eliminate the requirement for target motion knowledge in ISAR imaging.
• To enhance ISAR capabilities for maneuvering targets.

Main Methods:

• Development of a new ISAR system utilizing three receivers.
• Implementation of algorithms to process signals from the three receivers.
• Reconstruction of 3-D target geometry from ISAR data.

Main Results:

• Successful generation of 3-D ISAR images of targets.
• Demonstration that target motion knowledge is not required for 3-D imaging.
• The proposed system overcomes limitations of conventional 2-D ISAR.

Conclusions:

• The three-receiver ISAR system effectively generates 3-D images.
• This approach significantly advances ISAR capabilities for complex target scenarios.
• The system provides a robust solution for imaging maneuvering targets without motion compensation.