Numerical Evaluation of Ambiguity Function for Stepped Non-Linear FM Radar Waveform

The numerical evaluation of a non-linear frequency modulation (NLFM) based on MATLAB code is presented. The results of the numerical evaluation are depicted in two-(autocorrelation function) or thee-dimensional plots (ambiguity function). The program makes a numerical approach in order to design a NLFM pulse based on the stepped frequency characteristic. The program could be used to optimize results of empirical search for other nonlinear frequency characteristics based on relations between LFM and NLFM frequency sweep.