Detection of Weak Multi-Component LFM Signal Based on the Fractional Fourier Transform
Yaqiong Zhu · Journal of Nanjing University of Posts and Telecommunications · 2007
This paper presents a new method for the detection of multi-component weak LFM signal based on the fractional Fourier transform.Firstly,an adaptive LMS algorithm based on fractional Fourier transform,which could improve the processing of LFM signal,was proposed.Then,an adaptive linear enhancer in fractional domain that could provide better performance of multi-component weak signal detection was derived.As for the calculation of discrete fractional Fourier transform, running algorithm was used for reduced complexity.