改进的正交投影宽带发射波束零陷展宽算法
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摘要
随着雷达技术的发展,采用宽带发射信号成为大部分雷达系统的主流需求。根据宽带发射信号的特性进行建模,采用时域处理方法,分别构建时变宽带权与点频权,使得发射波束图可以在已知的置零方向上形成宽零陷,并提出改进的正交投影点频权算法,避免矩阵求逆运算,大大减少了运算量。
With the development of radar technology,using broadband transmitting signal has become the mainstream demand of most radar systems.This paper conducts the modeling according to the characteristics of broadband transmitting signal,uses time-domain processing method to construct time-varying broadband weights and point-frequency weights respectively,which makes the transmitting beam pattern can form wide null in the known nulling direction,and proposes the point frequency weight algorithm based on improved orthogonal projection to avoid matrix inversion and greatly reduce the computational complexity.
With the development of radar technology,using broadband transmitting signal has become the mainstream demand of most radar systems.This paper conducts the modeling according to the characteristics of broadband transmitting signal,uses time-domain processing method to construct time-varying broadband weights and point-frequency weights respectively,which makes the transmitting beam pattern can form wide null in the known nulling direction,and proposes the point frequency weight algorithm based on improved orthogonal projection to avoid matrix inversion and greatly reduce the computational complexity.
引文
[1] 曹运合,张守宏,王胜华,罗永健.有效的宽带宽角发射干扰置零新方法[J].电子与信息学报,2005,27(4):577-579.
[2] 曹运合,李强,王胜华,张守宏.宽带相控阵雷达发射波束零点形成方法[J].西安电子科技大学学报,2006,33(3):395-399.
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[4] MAILLOUX R J.Covariance matrix augmentation to produce adaptive array pattern roughs[J].Electronics Letters,1995,31(10):771-773.
[5] GERSHMAN A B,JOHANN U N.Adaptive beamforming algorithms with robustness against jammer motion[J].IEEE Transactions on Signal Processing,1997,45(7):1878-1885.
[6] 孙胜贤,李会勇,龚耀寰.唯相相控阵自适应赋形收发波束形成[J].信号处理,2003,19(1):24-27.
[7] 王宏哲.数字波束形成的G-S自适应零点形成算法研究[D].郑州:河南大学,2003.
[2] 曹运合,李强,王胜华,张守宏.宽带相控阵雷达发射波束零点形成方法[J].西安电子科技大学学报,2006,33(3):395-399.
[3] HAYKIN S.Adaptive Filter Theory[M].4th ed.Upper Saddle River,NJ:Prentice-Hall,2001.
[4] MAILLOUX R J.Covariance matrix augmentation to produce adaptive array pattern roughs[J].Electronics Letters,1995,31(10):771-773.
[5] GERSHMAN A B,JOHANN U N.Adaptive beamforming algorithms with robustness against jammer motion[J].IEEE Transactions on Signal Processing,1997,45(7):1878-1885.
[6] 孙胜贤,李会勇,龚耀寰.唯相相控阵自适应赋形收发波束形成[J].信号处理,2003,19(1):24-27.
[7] 王宏哲.数字波束形成的G-S自适应零点形成算法研究[D].郑州:河南大学,2003.