半球面共形阵列波束综合技术研究

针对天线的抗干扰提高信噪比问题,球面阵列天线的增益在不同方向灵活可变的优点,但球面阵列天线是非线性的,没有解析解,传统的线性波束综合方法很难解决球面阵列天线复杂多约束的增益问题。为解决上述问题,使用了零陷技术。现有的方法着重干扰方向已知情况下的零陷形成技术,而对干扰方向未知多变的情况研究很少,采用改进的遗传算法用于复杂的宽角零陷形成,可以解决干扰方向未知情况下的零陷形成难题。

Study on Beam Synthesis Method of Conformal Half-Spherical Arrays

To improve the signal to noise ratio of antenna with interferences,we introduced the advantages of spherical array antenna.But the spherical array antenna is nonlinear and has no analytical solution,.The traditional linear beam synthesis method is difficult to solve the complex gain problem of the spherical array antenna with multiple constraints.A solution is the use of zero trapdoor technique.We used the improved genetic algorithm for complex wide angle null beamforming,and solved the null beamforming problem under the condition of unknown interference direction.