Compression Performance of Wide-Band Chirp Pulse in the Fractional Fourier Domain
Based on the fractional Fourier transform, a time-delay estimator of chirp signals was proposed by Tao in 2009. In this paper, compression performance of the time-delay estimator is discussed in the fractional Fourier domain, referring to linear frequency-modulated pulse compression in the time domain. We find: (a) the pulse-width compression ratio is the product of time duration and band width, denoted as D; (b) the peak amplitude ratio is about D 1/2 when the absolute value of chirp rate is large enough. The conclusions help to the further application of this time-delay estimator based on the FRFT.
KeywordsChirp pulse fractional Fourier transform pulse compression time delay
Unable to display preview. Download preview PDF.
- 2.Ozaktas, H.M., Kutay, M.A., Zalevsky, Z.: The fractional Fourier transform with Applications in Optics and Signal Processing. John Wiley & Sons, New York (2000)Google Scholar
- 3.Skolnik, M.I.: Introduction to radar systems (third edition), 3rd edn. McGraw-Hill Companies, New York (2001)Google Scholar