Modified Time Domain Interference Blocking Method Based on Guiding Signal

doi:10.3969/j.issn.1000-1093.2019.03.015

Abstract

Abstract: A modified time domain interference blocking method based on guiding signal is proposed for the beam distortion and detection blind zone due to time domain interference blocking. The proposed method is used to generate a guiding signal according to the frequency band of processing data, and process the guiding signal at the interference angle, thus obtaining a beam. Then Kalman filter is used to process the beam to obtain the attenuation curve of the beam after interference blocking. The attenuation curve is used to nonlinearly process the output beam, reduce the beam distortion and detection blind zone, and achieve the expected results of interferences block and detection. The numerically simulated and data processing results show that the proposed method can be used to attenuate the original attenuation interval to 5°, achieve the beam correction, reduce detection blind zone, and achieve the detection of weak targets in old attenuation interval. The proposed method is used to avoid the impact of “wide concave” or “convex” beam generated by the time domain interference blocking method on target. Key

Key words: timedomaininterferenceblocking, beamdistortion, detectionblindzone, guidingsignal, attenuationcurve, beamcorrection

CLC Number:

TB566

ZHENG Enming, CHEN Xinhua, LI Yi. Modified Time Domain Interference Blocking Method Based on Guiding Signal[J]. Acta Armamentarii, 2019, 40(3): 561-569.

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第40卷
第3期2019 年3月兵工学报ACTA
ARMAMENTARIIVol.40No.3Mar.2019