Jinglan Deng, Jingjing Tong, Minguang Gao, Xiangxian Li, Yan Li, Xin Han, Wenqing Liu. Improved Triangular Window Apodization Function Based on Zero-Order Bessel Function[J]. Acta Optica Sinica, 2020, 40(3): 0307001
- Acta Optica Sinica
- Vol. 40, Issue 3, 0307001 (2020)
Fig. 1. Time-frequency domain analysis of triangular window and improved triangular window apodization functions. (a) Time domain; (b) frequency domain
Fig. 2. Working principle of portable Fourier transform infrared spectrometer
Fig. 3. Spectra of different apodization functions. (a) Kaiser window with different parameters; (b) other common apodization functions
Fig. 4. Results after data processing by Kaiser window apodization function with different parameters. (a) Original signal; (b) β=1; (c) β=4; (d) β=9; (e) β=16; (f) β=25
Fig. 5. Results after data processing by different apodization functions. (a) Original signal; (b) triangular window; (c) Hanning window; (d) Hamming window; (e) Blackman window; (f) improved triangular window
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Table 1. Mainlobe width and relative sidelobe attenuation of different apodization functions
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Table 2. Signal-to-noise ratio of Kaiser window apodization function with different parameters
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Table 3. Signal-to-noise ratio of common apodization functions
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