摘要
针对基于雷达功放的寄生调制进行辐射源个体识别的问题,提出利用正弦信号激励下的谐波特征进行识别的方法。该方法利用谐波相对幅度间的约束关系来分类,因而可在功放激励信号功率变化时保持分类性能,通过非线性最小二乘法对谐波幅度进行参数估计,获得了足够的参数估计精度。仿真实验验证了本方法的优势。
To study the identification method of radar＇s power amplifier, which can be used to designate the emitter＇s individual, a principle of harmonic analysis is proposed. It uses the constraints between the comparative amplitude of harmonic to classify the output signal of power amplifier with simple ton driven signal, thus the performance is maintained when the driven signal＇s power is changed. By using the general least square algorithm, the method can get enough precisiori. The simulation proves the advantage of the method.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2008年第3期400-403,共4页
Systems Engineering and Electronics
基金
总装预研基金资助课题(41101020501)
关键词
辐射源识别
特定辐射源识别
无意调制分析
放大器
谐波效应
泰勒级数法
emitter identification
specific emitter identification
unintentional modulation analysis
poweramplifier
harmonic effect
Taylor series method
