1) sidelobe level
旁瓣电平
1.
in order to combine and optimize the current distribution,which makes the maximum sidelobe level of this uniform linear array as low as possible,and compares the optimization effect of different operator combination,gets some applicable conclusion.
针对一个均匀直线阵列,采用几种比较典型的选择、交叉、变异等遗传算子进行组合优化其阵元的电流分布,以达到尽可能降低该直线阵列最大旁瓣电平的目的,并对各种算子组合的优化效果进行了比较,从中得到了一些实用的结论。
2.
Under the optimization constraints of the number of element,the aperture and the minimum element spacing,the MGA has been utilized to reduce the peak sidelobe level(PSLL) of the array.
在约束阵列孔径和阵元数的条件下,高效地实现了任意最小阵元间距约束下抑制峰值旁瓣电平(PSLL)的稀布阵综合。
3.
Due to the effect of feeding error on antenna’s radiation performances, which causes the degradation of the sidelobe level , the pointing accuracy and the anti-jamming capability of phased arrays.
由于馈电误差的影响,相控阵天线的指向精度降低,旁瓣电平恶化,抗干扰能力下降。
2) sidelobe
旁瓣电平
1.
The algorithm takes into account of the characteristic of patterns of array’s elements and can control sidelobe lovels arbitrarily and overcome the drawbacks of traditional techniques.
算法考虑了阵元方向图的特性,并能任意控制旁瓣电平,克服了传统算法的不足,很好地完成设计要求。
2.
The mainlobe shaping,sidelobe levels and null can be controlled efficiently.
计算结果表明该方法实现了对平面阵主瓣形状、旁瓣电平、零陷的任意控制。
3) nearby sidelobe level
旁瓣包络近轴旁瓣电平
4) peak sidelobe level
峰值旁瓣电平
1.
Through the theoretical analysis and computer simulation,the statistical peak sidelobe level(PSL) of compression wave of the correlation receiver,and the resolved ability were studied.
仿真结果表明,这种信号与线性调频超宽带雷达信号相比,在一定的条件下,可以获得更低的峰值旁瓣电平,并且具有更好的分辨能力。
2.
In this paper,the basic principle about the mean sidelobe level and the peak sidelobe level are described.
论述了均值旁瓣电平和峰值旁瓣电平的基本原理。
5) antenna sidelobe level
天线旁瓣电平
1.
The determination of radar antenna sidelobe level has qualitative principles,but have no distinct quantitative analytic formulas,so it is more or less indistinctness that the specification of sidelobe level is put by users or designers.
雷达天线旁瓣电平的确定虽有定性的原则,但尚无明晰的定量解析表示,以致用户或总体设计单位提出这一指标多少带有随意性。
6) mean sidelobe level
均值旁瓣电平
1.
In this paper,the basic principle about the mean sidelobe level and the peak sidelobe level are described.
论述了均值旁瓣电平和峰值旁瓣电平的基本原理。
补充资料：超低旁瓣
为了增强现代舰用天线系统的抗干扰能力,必须提高天线旁瓣的测量精度.
基于此给出了用平面近场技术测量超低旁瓣天线时,旁瓣测量总误差与待测天线参数、近场幅相随机误差的数学模型:在相同的测量条件下,天线旁瓣越低,旁瓣测量误差越大;
旁瓣测量总误差随着近场测量幅相误差的增大而增大;近场分布的口径效率与旁瓣电平的误差方差成反比.
建立了近场幅相随机误差所引起的误差谱的表达式.对随机误差对远场方向图的影响进行了计算机仿真验证:结果表明,幅相误差主要影响远场方向图的旁瓣;该验证方法首次采用阵元数较少的线阵,仿真效果接近采用多阵元平面阵的情况.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条