Title :
Main-lobe jamming suppression for missile-borne phased array high-repetition stepped frequency radar
Author :
He, Songhua ; Guo, Tenglong
Author_Institution :
Coll. of Inf. Sci. & Eng., Hunan Univ., Changsha, China
Abstract :
Aimed at the case of more than one jamming source, a novel method of main-lobe jamming suppression and target angle parameter estimation was presented for missile-borne mono-pulse high-repetition stepped-frequency radar application. In the method, beamforming in modified azimuth-elevation coordinate system was did in order to obtain separable pattern function; eight channels including sum, azimuth-difference, elevation-difference and other auxiliary channels were constructed by using digital processing of sub-array output signals; modified sum channels and modified difference channels were formed by using multi-channel cancellation technology. The method can suppress main-lobe jamming and meanwhile preserve undistorted mono-pulse ratio. Theoretical analysis and simulation results show its effectiveness.
Keywords :
array signal processing; interference suppression; jamming; military radar; missiles; parameter estimation; phased array radar; radar signal processing; auxiliary channels; azimuth-difference; digital processing; elevation-difference; jamming source; main-lobe jamming suppression; missile-borne mono-pulse high-repetition stepped-frequency radar application; missile-borne phased array high-repetition stepped frequency radar; modified azimuth-elevation coordinate system; modified difference channels; modified sum channels; multichannel cancellation technology; pattern function; sub-array output signals; target angle parameter estimation; undistorted mono-pulse ratio; Arrays; Azimuth; Equations; Jamming; Noise; Radar; Radar antennas;
Conference_Titel :
Information Science and Technology (ICIST), 2012 International Conference on
Conference_Location :
Hubei
Print_ISBN :
978-1-4577-0343-0
DOI :
10.1109/ICIST.2012.6221771