Title :
Novel Parameter Estimation Method for Chirp Signals Using Bowtie Chirplet and Discrete Fractional Fourier Transform
Author :
Mostayed, Ahmed ; Kim, Sikyung ; Sajib, Saurav Zaman Khan
Author_Institution :
Dept. of Electr. Eng., Kongju Nat. Univ., Kongju
Abstract :
A new parameter estimation method for linear chirp signal is proposed. This method utilizes the Discrete Fractional Fourier Transform (DFRFT) along with Bowtie Chirplet Transform to estimate the amplitude and phase parameters of multi-component chirp signals. DFRFT is used for estimating amplitude parameter whereas the chirp rate and initial frequency are estimated using Chirplet Transform. Performance of the proposed method in noise is analyzed by Monte- Carlo simulation for different Signal to Noise Ratio (SNR). Good performance was achieved at SNR as low as -10 dB.
Keywords :
Monte Carlo methods; discrete Fourier transforms; parameter estimation; signal processing; Monte-Carlo simulation; bowtie chirplet transform; discrete fractional Fourier transform; linear chirp signal; multi-component chirp signals; parameter estimation method; 1f noise; Amplitude estimation; Chirp; Discrete Fourier transforms; Discrete transforms; Fourier transforms; Frequency estimation; Parameter estimation; Phase estimation; Signal to noise ratio; Chirp signal; Chirplet transform; Fractional Fourier transfrom; Parameter estimation;
Conference_Titel :
Future Generation Communication and Networking Symposia, 2008. FGCNS '08. Second International Conference on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-3430-5
Electronic_ISBN :
978-0-7695-3546-3
DOI :
10.1109/FGCNS.2008.26
