In radar, uniform side lobe pattern is useful for detection of weak targets. Important radar characteristic function, i.e., ambiguity function, a two-dimensional function of time delay χ(τ,fd) and Doppler frequency that portrays the distortion of a returned pulse induced by the receiver matched filter due to the Doppler shift of the return radar signal from the moving target, is useful for identification of poor targets. Nonuniform PRI LFM (ascending and descending order) with length 11 as well as uniform Pulse Repetition Interval LFM with length 11 has been considered here. The ambiguity diagram, which defines the radar's precision, is used to quantify PSLR (Peak Side Lobe Ratio) and ISLR (Integrated Side Lobe Ratio). To minimise side lobes, this paper proposes a new paradigm for PCW (Pulse Continuous Wave) and LFM signals. Several applications are discussed that are specifically related to the strengths and limitations of nonuniform PRI waveforms.
