원문정보
보안공학연구지원센터(IJSIP)
International Journal of Signal Processing, Image Processing and Pattern Recognition
vol.2 no.1
2009.03
pp.89-108
피인용수 : 0건 (자료제공 : 네이버학술정보)
초록
영어
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.
목차
Abstract
1. Introduction
2. Fractional Fourier transform and time-frequency analysis
2.1. Fractional Fourier transform
2.2. Time-Frequency analysis
2.3. Bowtie Chirplet transform
2.4 Time-Frequency analysis for chirp rate estimation
3. Proposed estimation method
3.1. Signal model
3.2. Phase parameters estimation using Bowtie Chirplet transform
3.3. Amplitude parameter estimation using Discrete Fractional Fourier Transform(DFRFT)
4. Simulation results
5. Performance analysis and discussion
6. Conclusions
7. References
1. Introduction
2. Fractional Fourier transform and time-frequency analysis
2.1. Fractional Fourier transform
2.2. Time-Frequency analysis
2.3. Bowtie Chirplet transform
2.4 Time-Frequency analysis for chirp rate estimation
3. Proposed estimation method
3.1. Signal model
3.2. Phase parameters estimation using Bowtie Chirplet transform
3.3. Amplitude parameter estimation using Discrete Fractional Fourier Transform(DFRFT)
4. Simulation results
5. Performance analysis and discussion
6. Conclusions
7. References
저자정보
참고문헌
자료제공 : 네이버학술정보