A method of sidelobe suppression in the specified location based on window function | Zendy

Dakai Zhang | Zendy; Feng Xiaobin | Zendy; Xiaoling Shen | Zendy; Yinkai Liu | Zendy; Cai Min | Zendy; Yun Zhang | Zendy; Feng Yu | Zendy

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A method of sidelobe suppression in the specified location based on window function

Author(s) -

Dakai Zhang,

Feng Xiaobin,

Xiaoling Shen,

Yinkai Liu,

Cai Min,

Yun Zhang,

Feng Yu

Publication year - 2019

Publication title -

procedia computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.334

H-Index - 76

ISSN - 1877-0509

DOI - 10.1016/j.procs.2019.01.194

Subject(s) - computer science , window function , masking (illustration) , scattering , attenuation , function (biology) , window (computing) , algorithm , acoustics , signal (programming language) , modulation (music) , optics , physics , telecommunications , art , spectral density , evolutionary biology , visual arts , biology , programming language , operating system

Dechirp technology for LFM (liner frequency modulation) echo signal will cause sidelobe. The sidelobe of a strong scattering object may mask weak scattering targets nearby. By suppressing the sidelobe in the specified location with a calculated window function, the sidelobe masking can be eliminated. The mainlobe level and the sidelobe level in the specified location are used to construct the objective function. By iterating, we can suppress the sidelobe in the specified location without mainlobe attenuation. The numerical simulations and the actual measurements demonstrate that the proposed method can suppress sidelobe successfully and eliminate the sidelobe masking effectively without mainlobe attenuatio.

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