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2 years ago in Electrical Engineering By Preetham M
Interpolation Algorithms for Smooth Rectilinear Antenna Plots
Discrete far-field samples require interpolation to produce continuous rectilinear plots. Cubic spline provides smooth curves, while bilinear is suitable for 2D spherical-to-Cartesian conversions. Nearest neighbor is fast but jagged. MATLAB’s “interp2” with the ‘cubic’ method is commonly used. Proper sampling is critical: intervals must satisfy the Nyquist criterion relative to pattern beamwidth to avoid aliasing. This approach allows accurate visualization of antenna patterns in elevation and azimuth cuts.
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By Usha K Answered 1 year ago
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