Transmitter and receiver polarisation optimisation design for target

Abstract

In radar systems, transmitting and receiving waveforms with different polarisations benefit to acquire complete information about the target and its environment, ensuring significant enhancement of the radar's performance. Here, the authors consider the optimisation problem of jointly designed transmitter and receiver (TR) polarisation from the view of target scattering estimation. Under the condition that the target and clutter scattering covariance is known as a prior, they first use sequential linear minimum mean square error estimation to obtain the target scattering matrix and then optimise the sensing vector, which contains the polarisation information under the constraint of minimising the mean square error. The mentioned problem can be solved by eigenvector decomposition. Then, a method to get the TR polarisation parameters is provided. Finally, they use numerical simulations to show the advantage of the proposed methods.

Keywords

• least mean squares methods
• radar clutter
• covariance matrices
• mean square error methods
• electromagnetic wave polarisation
• s-matrix theory
• eigenvalues and eigenfunctions
• optimisation
• different polarisations
• optimisation problem
• jointly designed transmitter
• target scattering estimation
• clutter scattering covariance
• sequential linear minimum mean square error
• target scattering matrix
• polarisation information
• mentioned problem
• tr polarisation parameters
• receiver polarisation optimisation design
• radar systems