  This paper will design non-linear frequency modulation (NLFM) signal for
Chebyshev, Kaiser, Taylor, and raised-cosine power spectral densities (PSDs).
Then, the variation of peak sidelobe level with regard to mainlobe width for
these four different window functions are analyzed. It has been demonstrated
that reduction of sidelobe level in NLFM signal can lead to increase in
mainlobe width of autocorrelation function. Furthermore, the results of power
spectral density obtained from the simulation and the desired PSD are compared.
Finally, error percentage between simulated PSD and desired PSD for different
peak sidelobe level are illustrated. The stationary phase concept is the
possible source for this error.
