Non-Uniform Warping Sampling for Data Reduction in Planar Array Diagnostics

The problem of detecting defective turned-off elements in antenna arrays from near-field measurements is addressed. In particular, the focus here to reduce number order positively affect acquisition time. Such an issue achieved by adopting recently developed warping sampling method. Two commonly diagnostics methods, i.e, Back Transformation Method (BTM) and Matrix (MM), are considered view this new strategy compared usual half-wavelength sampling. identify fault locations, outcomes returned BTM MM undergo a detection step based on cell-averaging CFAR (CA)-CFAR technique borrowed radar literature. It shown that method provides performance close uniform one with reduced data. Numerical simulations carried out verify results different layouts tapered currents.