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Individual Identification of Electronic Equipment Based on Electromagnetic Fingerprint Characteristics
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作者 Han Xu Hongxin Zhang +3 位作者 Jun Xu guangyuan wang Yun Nie Hua Zhang 《China Communications》 SCIE CSCD 2021年第1期169-180,共12页
With the rapid development of communication and computer,the individual identification technology of communication equipment has been brought to many application scenarios.The identification of the same type of electr... With the rapid development of communication and computer,the individual identification technology of communication equipment has been brought to many application scenarios.The identification of the same type of electronic equipment is of considerable significance,whether it is the identification of friend or foe in military applications,identity determination,radio spectrum management in civil applications,equipment fault diagnosis,and so on.Because of the limited-expression ability of the traditional electromagnetic signal representation methods in the face of complex signals,a new method of individual identification of the same equipment of communication equipment based on deep learning is proposed.The contents of this paper include the following aspects:(1)Considering the shortcomings of deep learning in processing small sample data,this paper provides a universal and robust feature template for signal data.This paper constructs a relatively complete signal template library from multiple perspectives,such as time domain and transform domain features,combined with high-order statistical analysis.Based on the inspiration of the image texture feature,characteristics of amplitude histogram of signal and the signal amplitude co-occurrence matrix(SACM)are proposed in this paper.These signal features can be used as a signal fingerprint template for individual identification.(2)Considering the limitation of the recognition rate of a single classifier,using the integrated classifier has achieved better generalization ability.The final average accuracy of 5 NRF24LE1 modules is up to 98%and solved the problem of individual identification of the same equipment of communication equipment under the condition of the small sample,low signal-to-noise ratio. 展开更多
关键词 signal fingerprints histogram-based signal feature starting point detection signal level cooccurrence matrix ensemble Learningn
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水稻两性生殖细胞的N-甲基-N-亚硝基脲诱变方法 被引量:2
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作者 田怀东 李菁 +9 位作者 田保华 牛鹏飞 李珍 岳忠孝 屈雅娟 姜建芳 王广元 岑慧慧 李南 闫枫 《植物学报》 CAS CSCD 北大核心 2019年第5期625-633,共9页
N-甲基-N-亚硝基脲(MNU)被用于水稻(Oryza sativa)受精卵的诱变。通过水稻辽盐6号成熟生殖器官的MNU体内同步处理及后代群体筛查,确立了水稻两性生殖细胞的MNU诱变方法。与辽盐6号受精卵的MNU处理相比,各组条件下两性生殖细胞的MNU处理... N-甲基-N-亚硝基脲(MNU)被用于水稻(Oryza sativa)受精卵的诱变。通过水稻辽盐6号成熟生殖器官的MNU体内同步处理及后代群体筛查,确立了水稻两性生殖细胞的MNU诱变方法。与辽盐6号受精卵的MNU处理相比,各组条件下两性生殖细胞的MNU处理明显使M1群体生长发育的指标降低及M1-M2群体中突变性状的发生率升高。两性生殖细胞在含有1.5 mmol·L^–1 MNU和10 mmol·L^–1 PO43–的缓冲液(pH4.8)中处理60分钟,突变性状发生率是基于受精卵MNU处理的3倍。进一步筛查M3群体,获得了包含新型植株和籽粒突变体的纯合突变体系列。研究结果表明,水稻两性生殖细胞的MNU诱变可显著提高广谱诱变效率。该技术的应用可为水稻的未知功能基因鉴定和育种所需的各种突变体规模化开发提供高效的技术支撑。 展开更多
关键词 水稻 两性生殖细胞 N-甲基-N-亚硝基脲 诱变
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