[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 子阵结构FDA阵列模糊函数建模与研究-Research on Negative Ambiguity Function Characteristics of Frequency Diverse Array
Research on Negative Ambiguity Function Characteristics of Frequency Diverse Array
中文关键词: 频率分集阵列  模糊函数  非线性频偏  矩形脉冲信号  子阵
英文关键词: frequency diverse array  ambiguity function  nonlinear frequency offset  rectangular pulse signal  sub array
王博,谢军伟,张晶,孙渤森 1.空军工程大学防空反导学院,西安,7100512.陕西交通职业技术学院,西安,7100183.西安财经大学西安710100 
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      Aimed at the problems that the optimization based on ambiguity function is an important means of Frequency Diverse Array (FDA) radar waveform design, the ambiguity function of sub array based Frequency Diverse Array is lack of research in the existing literature, a data model for FDA transmitting simple pulses under narrow band conditions is established and the beam pattern characteristics of FDA arrays is compared to the phased arrays. On this basis, based on the time domain convolution of the signal through the matched filter output, the ambiguity function of the FDA array under three received signal processing architectures is derived. Then, the transmit beam pattern characteristics and the ambiguity function characteristics of the cross sub array based FDAs with different frequency offset are analyzed separately. The result shows that the FDA with sinusoidal frequency offset has a good interference suppression performance. The correctness of the analysis is verified and an important foundation is laid by this method for a series of studies in designing radar waveforms based on the ambiguity function of the sub array based FDA to achieve interference suppression.
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