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- W2965839747 abstract "This paper presents a modified Fourier transform method to synthesize a broadband array with frequency-invariant (FI) mainlobe and multiple space-frequency nulls. In this method, a iterative Fourier transform is used to design multiple optimized reference patterns which have the same mainlobe shape but with different sidelobe or null distributions. These reference patterns are used for describing different radiation requirements in different sub-bands of the whole frequency band. Then, a desired broadband spatial spectral distribution can be obtained by matching it to each reference pattern at each sub-band, and a broadband excitation distribution for generating the desired FI pattern can be efficiently found by performing an inverse fast Fourier transform (IFFT) on the broadband spatial spectral distribution. An example for synthesizing a FI beam pattern with two space-frequency nulls is provided to verify the effectiveness and efficiency of the proposed method." @default.
- W2965839747 created "2019-08-13" @default.
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- W2965839747 date "2019-03-01" @default.
- W2965839747 modified "2023-10-16" @default.
- W2965839747 title "Efficient Frequency-invariant Beam Pattern Synthesis With Multiple Space-frequency Nulls" @default.
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- W2965839747 doi "https://doi.org/10.1109/compem.2019.8778889" @default.
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