| 基于S-霍夫变换的LFM信号时频检测 |
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| 引用本文： | 牛萌,;李钊,;李建军,;胡礼勇,;王天宝. 基于S-霍夫变换的LFM信号时频检测[J]. 计算机与网络, 2009, 0(11): 40-42 |
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| 作者姓名： | 牛萌, 李钊, 李建军, 胡礼勇, 王天宝 |
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| 作者单位： | [1]第二炮兵青州士官学校,山东青州262500; [2]第二炮兵驻石家庄地区军事代表室,河北石家庄050081; [3]第二炮兵驻孝感地区军事代表室,湖北孝感432000 |
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| 摘 要： | 针对多分量线性调频（LFM）信号，提出一种新的变换-S-霍夫变换，该方法首先对多分量线性调频信号进行S变换，实验仿真结果显示相对Wigner-Ville分布有交叉项干扰，s变换克服了多分量线性调频信号产生的交叉项干扰，然后在时频平面内对s变换后的多分量线性调频信号，利用霍夫变换检测出各个线性调频信号分量，仿真实验结果证明该方法可以有效克服多分量线性调频信号产生的交叉项干扰，能够对多分量线性调频信号进行正确检测。
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| 关 键 词： | S变换 霍夫变换 S-霍夫变换 Wigner-Ville分布 |
LFM Signal Time Frequency Detection Based On S-Hough Transform |
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| Affiliation: | NIU Meng, LI Zhao,LIJian-jun,HU Li-yong,WANG Tian-bao(1 The Second Artillery Sergeant School, Qmgzhou Shandong 262500, China) (2 The Military Representative Office in Shijiazhuang, Shijiazhuang Hebei 050081, China) (3 The Second Artillery Military Representative Office in Xiaogan, Xiaogan Hubei 432000, China) |
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| Abstract: | A new transform--S-Hough transform is proposed for multi component LFM signal. In this method, firstly multi component LFM signal is transformed by S-transform. Experiment simulation results indicate that S transform overcomes cross-terms disturbance produced by multi-component signal compared with Wigner-Ville distribution. Then each linear FM signal component is detected by Hough transform in the time-frequency plane. Experiment simulation results indicate that this method is very efficient in multi component LFM signal detection. |
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| Keywords: | S-transform Hough transform S-Hough transform Wigner-Ville distribution |
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