Beamforming of joint polarization-space matched filtering for conformal array

Area of Science:

• Antenna theory and signal processing
• Electromagnetics and wave propagation

Background:

• Received signal energy loss occurs due to antenna polarization mismatch.
• Conventional beamforming is unsuitable for conformal arrays owing to their varying curvature.

Purpose of the Study:

• To propose a novel joint polarization-space matched filtering algorithm for cylindrical conformal arrays.
• To address energy loss from polarization mismatch and improve signal reception in conformal antenna systems.

Main Methods:

• Analysis of the snapshot data model for conformal polarization-sensitive arrays.
• Derivation of analytical expressions for polarization-sensitive array beamforming.
• Application of Linearly Constrained Minimum Variance (LCMV) beamforming techniques.
• Detailed discussion of the joint polarization-space matched filtering principle.

Main Results:

• The conformal polarization-sensitive array demonstrates greater robustness compared to ordinary conformal arrays.
• The proposed algorithm enhances performance when signals and interference are closely spaced.
• Significant improvement in signal-to-noise ratio (SNR) is achieved by optimizing element polarization.

Conclusions:

• The joint polarization-space matched filtering algorithm effectively mitigates polarization mismatch in conformal arrays.
• This approach enhances the robustness and performance of cylindrical conformal antenna systems.
• The algorithm offers a viable solution for improving signal reception in challenging electromagnetic environments.