相控阵雷达降维四通道和差波束测角
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摘要
针对大型阵列的子阵划分,权值优化和单脉冲测角阵元数多,两级联合权值逼近以及对于主瓣内偏离波束中心超过3 dB的目标,会出现较大的测角偏差的问题,提出了一种基于降维相控阵的增加双差通道的四通道单脉冲测角方法.基于粒子群优化算法联合权值优化算法,在保证相控阵波束关键指标的前提下,极大减少通道数,降低工程实现难度;四通道单脉冲测角方法提高了对于主瓣内偏离波束中心3 dB以上目标的测角精度,扩宽了精确测角范围,降低了测角范围的损失.仿真实验证明了所提算法的有效性和可行性.
To overcome the larger deflection of angle measurement, existing in subarray division of large arrays, weight optimization and the monopulse angle estimation, the large number of arrays, the weight approach algorithm and the large bias of the target departing more than 3 dB from the antenna, a 4-channel monopulse angle measurement method was proposed based on dimensionality reduction of phased array with an additional delt-delt channel. Combining the particle swarm optimization algorithms and weight optimization algorithm, the 4-channel monopulse angle measurement method was designed to greatly decrease the number of the channel, reduce project implementation difficulty and keep fine beam shape, to improve the monopulse angle estimation and the angle measurement accuracy of the beam departing more than 3 dB from the antenna, and to improve the efficiency of angle estimation and reduce the loss of angle measuring range. The simulation results and performance analysis show the effectiveness and feasibility of the presented algorithm.
To overcome the larger deflection of angle measurement, existing in subarray division of large arrays, weight optimization and the monopulse angle estimation, the large number of arrays, the weight approach algorithm and the large bias of the target departing more than 3 dB from the antenna, a 4-channel monopulse angle measurement method was proposed based on dimensionality reduction of phased array with an additional delt-delt channel. Combining the particle swarm optimization algorithms and weight optimization algorithm, the 4-channel monopulse angle measurement method was designed to greatly decrease the number of the channel, reduce project implementation difficulty and keep fine beam shape, to improve the monopulse angle estimation and the angle measurement accuracy of the beam departing more than 3 dB from the antenna, and to improve the efficiency of angle estimation and reduce the loss of angle measuring range. The simulation results and performance analysis show the effectiveness and feasibility of the presented algorithm.
引文
[1] 胡体玲,李兴国.单脉冲探测技术的发展综述[J].现代雷达,2006,28(1):24-29.Hu Tiling,Li Xingguo.Research on development of monopulse detection technology[J].Modern Radar,2006,28(1):24-29.(in Chinese)
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[5] 吴晓军,杨战中,Jmg T,等.均匀搜索粒子群算法[J].电子学报,2011,39(6):1261-1266.Wu Xiaojun,Yang Zhanzhong,Jmg T,et a1.A uniform searching parlicle swarm optimizatioll algorithm[J].Acta Electronica Sinica,2011,39(6):1261-1266.(in Chinese)
[6] Andrea F Morabito,Paolo Rocca.Optimal synthesis of sum and difference patterns with arbitrary sidelobes subject to common[J].IEEE Antennas and Wireless Propagation Letter,2010,9(7):623-626.
[7] 孙晨伟.大型阵列降维-和差多波束形成的联合优化算法[J].电子学报,2013,41(3):519-525.Sun Chenwei.Dimensionality reduction of large scale phased array-joint optimization of sum and difference multiple beams[J].Acta Electronica Sinica,2013,41(3):519-525.(in Chinese)
[8] 孙晨伟.大型阵列的降维优化波束形成[D].西安:西安电子科技大学,2013.Sun Chenwei.Dimensionality reduction and beamforming optimization of the for large scale phased array[D].Xi’an:Xidian University,2013.(in Chinese)
[9] 陈成增,吴建新,王彤,等.基于鉴角曲线拟合的自适应单脉冲测角方法[J].系统工程与电子技术,2013,35(7):1403-1408.Chen Chengzeng,Wu Jianxin,Wang Tong,et al.Monopulse angle estimation with adaptive array based on monopulse response curve fitting[J].Systems Engineering and E1ectronics,2013,35(7):1403-1408.(in Chinese)
[10] 廖先华,杨建红,张立军,等.基于模拟退火算法的平面稀疏阵优化[J].现代雷达,2012,34(10):57-62Liao Xianhua,Yang Jianhong,Zhang Lijun,et a1.Optimization of planar sparse array using simulated anneal algorithm[J].Modern Radar,2012,34(10):57-62.(in Chinese)
[11] Norman B A,Bean J C.A genetic algorithm methodology for complex scheduling problems[J].Naval Research Logistics,2015,46(2):199-211.
[2] 廖桂生.阵列信号处理讲义[M].西安:西安电子科技大学,2009:26-33.Liao Guisheng.Array signal processing[M].Xi’an:Xidian University,2009:26-33.(in Chinese)
[3] 胡航,张皓.一种改进的两级子阵级自适应单脉冲方法[J].电子学报,2009,37(9):1996-2003.Hu Hang,Zhang Hao.An improved two-stage processing approach of adaptive monopulse at subarray level[J].Acta Electronica Sinica,2009,37(9):1996-2003.(in Chinese)
[4] Pocca P,Morabito A F,Isemia T.Synthesis of arbitrary sidelobes sum and difference patterns with common excitation weights[C]//Antennas and Propagation Society International Symposium(APSURSI).Toronto,Canada:IEEE,2010:1-4.
[5] 吴晓军,杨战中,Jmg T,等.均匀搜索粒子群算法[J].电子学报,2011,39(6):1261-1266.Wu Xiaojun,Yang Zhanzhong,Jmg T,et a1.A uniform searching parlicle swarm optimizatioll algorithm[J].Acta Electronica Sinica,2011,39(6):1261-1266.(in Chinese)
[6] Andrea F Morabito,Paolo Rocca.Optimal synthesis of sum and difference patterns with arbitrary sidelobes subject to common[J].IEEE Antennas and Wireless Propagation Letter,2010,9(7):623-626.
[7] 孙晨伟.大型阵列降维-和差多波束形成的联合优化算法[J].电子学报,2013,41(3):519-525.Sun Chenwei.Dimensionality reduction of large scale phased array-joint optimization of sum and difference multiple beams[J].Acta Electronica Sinica,2013,41(3):519-525.(in Chinese)
[8] 孙晨伟.大型阵列的降维优化波束形成[D].西安:西安电子科技大学,2013.Sun Chenwei.Dimensionality reduction and beamforming optimization of the for large scale phased array[D].Xi’an:Xidian University,2013.(in Chinese)
[9] 陈成增,吴建新,王彤,等.基于鉴角曲线拟合的自适应单脉冲测角方法[J].系统工程与电子技术,2013,35(7):1403-1408.Chen Chengzeng,Wu Jianxin,Wang Tong,et al.Monopulse angle estimation with adaptive array based on monopulse response curve fitting[J].Systems Engineering and E1ectronics,2013,35(7):1403-1408.(in Chinese)
[10] 廖先华,杨建红,张立军,等.基于模拟退火算法的平面稀疏阵优化[J].现代雷达,2012,34(10):57-62Liao Xianhua,Yang Jianhong,Zhang Lijun,et a1.Optimization of planar sparse array using simulated anneal algorithm[J].Modern Radar,2012,34(10):57-62.(in Chinese)
[11] Norman B A,Bean J C.A genetic algorithm methodology for complex scheduling problems[J].Naval Research Logistics,2015,46(2):199-211.