在前人工作的基础上,选用了高斯线调频小波作为基函数,研究了信号的小波谱,给出了小波谱在时间域及频率域的平滑谱并与傅里叶谱进行了比较.线性调频信号的检测与参数估计是一个广泛受到关注的问题,分析了线调频信号的小波变换,并提出了基于小波谱的线性调频信号检测的算法.
参考文献
[1] | Mallet S. A Wavelet Tour of Signal Processing (2nd Ed) [M]. China Machine Press, 2002. |
[2] | Zhang Donglai, Xu Dianguo, Wang Yan. Demarcation in space domain for local flaw signals of wire ropes and feature extraction in frequency domain based on wavelet transform [J]. Acta Electronica Sinica (电子学报), 2000,28(7): 59-62 (in Chinese). |
[3] | Yang Xiaohu, Feng Longlong, Zhu Yaoquan. Wavelet spectrum analysis of larger scale galaxy struction: method and numerical simulation [J]. Science in China (Series A) (中国科学), 2001, 31(3): 278-288 (in Chinese). |
[4] | Li Chunfang, et al. Research on spectrum analysis reconstruction method and union algebraic reconstruction method [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2002, 19:491 (in Chinese). |
[5] | Vecsey L, Matyska L. Wavelet spectra and chaos in thermal convection modeling [J]. Geophysical Research Lett.,2001, 28(2): 395-398. |
[6] | Shi Dufang. Image reconstruction technique from few projections for limited view optical tomography [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2004, 21(2): 168 (in Chinese). |
[7] | Zhan Buyun, Liu Aifang, Zhu Xiaohua, et al. Multicomponent LFM signal detection and parameter estimation based on Radon-STFT [J]. Journal of Detection and Control (探测与控制学报), 2003, 25(3): 30-33 (in Chinese). |
[8] | Zou Hong, Bao Zheng. Analysis of an adaptive gaussian-kernel time-frequency distribution for LFM signals [J].Journal of Electronics and Information Technology (电子与信息学报), 2002, 24(3): 314-319 (in Chinese). |
[9] | Wang Qing, et al. Maximum entropy image reconstruction from fewer views based on neural network [J]. Chinese Journal of Quantum Electronics (量子电子学报)], 2003, 20(1): 22-25 (in Chinese). |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%