STFT

作品数：264被引量：965H指数：13
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相关机构：西安电子科技大学浙江大学电子科技大学中国科学院更多>>
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Wind turbine clutter mitigation using morphological component analysis with group sparsity
《Journal of Systems Engineering and Electronics》2023年第3期714-722,共9页WAN Xiaoyu SHEN Mingwei WU Di ZHU Daiyin 
To address the problem that dynamic wind turbine clutter(WTC)significantly degrades the performance of weather radar,a WTC mitigation algorithm using morphological component analysis(MCA)with group sparsity is studied...
关键词：weather radar wind turbine clutter(WTC) morphological component analysis(MCA) short-time Fourier transform(STFT) group sparsity 
Selection of optimal window length using STFT for quantitative SNR analysis of LFM signal被引量：11
《Journal of Systems Engineering and Electronics》2013年第1期26-35,共10页Qingbo Yin Liran Shen Mingyu Lu Xiangyang Wang Zhi Liu 
supported by the National Natural Science Foundation of China(61073133;61175053;61272369;60975019);the Heilongjiang Postdoctoral Grant(LRB08362);the Fundamental Research Funds for the Central Universities of China(2011QN027;2011QN126;2012QN030;2011ZD010);the Science and Technology Planning Project of Dalian City(2011A17GX073;2010E15SF153)
An adaptive approach to select analysis window param- eters for linear frequency modulated （LFM） signals is proposed to obtain the optimal 3 dB signal-to-noise ratio （SNR） in the short- time Fourier transform （S...
关键词：window length selection quantitative signal-to-noise ratio instantaneous bandwidth high-order statistics. 
FM interference suppression for PRC-CW radar based on adaptive STFT and time-varying filtering被引量：9
《Journal of Systems Engineering and Electronics》2010年第2期219-223,共5页Zhao Zhao Xiangquan Shi 
The influence of frequency modulation （FM） interfer- ence on correlation detection performance of the pseudo random code continuous wave （PRC-CW） radar is analyzed. It is found that the correlation output deterior...
关键词：interference suppression frequency modulation in- terference adaptive short-time Fourier transform （STFT） time- varying filtering pseudo random code continuous wave （PRC-CW） radar. 
Anti-aliasing nonstationary signals detecion algorithm based on interpolation in the frequency domain using the short time Fourier transform被引量：7
《Journal of Systems Engineering and Electronics》2008年第3期419-426,共8页Bian Hailong Chen Guangju 
the National Natural Science Foundation of China (90407007; 60372001).
To eliminate the aliasing that appeared during the measurement of multi-components nonstationary signals, a novel kind of anti-aliasing algorithm based on the short time Fourier transform （STFT） is brought forward. ...
关键词：nonstationary signal INTERPOLATION ANTI-ALIASING short time Fourier transform （STFT） iterative algorithm. 
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