Sidelobe suppression for phase-coded pulse by mainlobe windowing

Mismatched filter is an important technique to suppress the sidelobes of phase-coded pulses. Here, the authors propose a mainlobe windowing procedure, by which a much lower sidelobe level can be obtained at a slightly signal-to-noise ratio loss. Based on this idea, they present two mismatched filter design procedures, namely an integrated sidelobe level (ISL) optimal filter and a peak sidelobe level (PSL) optimal filter. The ISL optimal filter can be obtained by a formula in closed form and the PSL optimal filter can be obtained by optimisation procedures. Simulation results are presented to verify the theory.

Abstract licence: CC BY-ND

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