Adaptive Monopulse Angle Measurement for Meter-Wave Radar Based on Differential Constraints Technique

Zhao Ying Jun; Li Rong Feng; Wang Yong Liang; Liu Wei Jian

doi:10.4028/www.scientific.net/AMR.846-847.812

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 846-847Adaptive Monopulse Angle Measurement for...

Adaptive Monopulse Angle Measurement for Meter-Wave Radar Based on Differential Constraints Technique

Abstract:

When detecting low-attitude targets, the angular accuracy of the meter-wave radar will descend because of the multipath reflecting from ground. Since multipath signals can be regarded as multipath jamming coming from the mainlobe, we propose an angle measurement based on the mainlobe multipath jamming suppression through differential constraints technique. The weight of the new approach is obtained through certain constraints on the sum-difference beams, which can suppress the jamming and keep the curve of the monopulse ratio unchanged simultaneously. Then form sum-difference beams and calculate the ratio of the monopulse ratio of the target. Finally, obtain the angle of the target through the determination of the smallest difference between the monopulse ratio of the target and the quiescent monopulse ratio. The method proposed in this paper can preserve good precision of the measurement angle. The result is verified by computer simulation.

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Periodical:

Advanced Materials Research (Volumes 846-847)

Pages:

812-817

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.846-847.812

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Online since:

November 2013

Authors:

Zhao Ying Jun*, Li Rong Feng, Wang Yong Liang, Liu Wei Jian

Keywords:

Adaptive Beamforming, Differential Constraints, Mainlobe Jamming, Meter-Wave Radar, Monopulse Estimation

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