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- main lobe radiation pattern 主瓣辐射图
- The actual-3 dB main lobe width is a bit wider than in the ideal case that neglects the element size. 结果表明:阵元宽度对主瓣半功率点宽度的影响非常有限,而且不同的阵元宽度造成的半功率点宽度之间的差异也很小。
- At last,a simulation example of main lobe clutter power for low altitude and ... 最后给出了一低空远界理论弹道主瓣杂波功率的仿真样例。
- Objective: We report on a case of recurrent left cerebellopontine angle meningioma resulting in left occipital lobe radiation necrosis 17 months after 2 courses of gamma knife radiosurgery. 摘要目标：我们报告一位桥小脑角复发性脑膜瘤病患经两次加马刀立体定位放射手术后产生大片左侧枕叶放射性坏死。
- For short biphase codes,the main lobe to sidelobe ratio of pulse compression is low,so sidelobe suppression is necessary. 二相码信号是一类常见的脉冲编码信号,但码较短时,匹配滤波的主副比不高,需要采用旁瓣抑制技术。
- The frequency response of radiation pattern of a linear dipole antenna by Hertz dipoles field summation approximation. 分析赫芝偶极电磁场合成法计算偶极天线之辐射场型随频率之变化。
- Based on uniform line array,the sonar equation of active sonar beam main lobe and side lobe interfered by noise-jammer are presented. 研究了噪声干扰器对鱼雷主动声呐的对抗原理,以等间隔直线阵为例,分别给出了干扰器对鱼雷主动声呐主瓣和旁瓣的干扰方程。
- Planar Radiation Pattern Comparison only for Consistent Source Current Direction, Field Polarization, and Field Plane. 作平面场型比较之电流源方向、电磁场极向、及场平面均必须一致。
- Cosecant Beam Generation Program for computing Phase distribution function and Radiation pattern. (译)：余割波束生成程序的计算相分布函数和辐射模式。
- The directivity of forming beam are prominent, the width of main lobe is distinct, and producing wavy plan with more powerful, which make for scanning in space. 形成波束指向性突出，主瓣宽度明显，延时产生的波阵面能量较强，有利于空间扫描。
- Rotating Radiation pattern from a Linear Array complete source code, has been tested. (译)：旋转辐射模式从线性阵列完整的源代码，已经过测试。
- The result reveals that small geometric focal length and large angle may decrease the -3dB focal area, and increase length to width ratio and the pressure magnitude of main lobe. 由结果得知，曲率半径愈小张角愈大会导致烧灼面积减小、长宽比增加以及压力主峰值的提高。
- The work includes several types of antenna measurements like efficiency, radiation pattern, VSWR and SAR. 负责一些天线指标的测试。例如，天线效率，辐射，VSWR，SAR等。
- It incorporates the spherical nature of the radar's radiation pattern and so the image would not distort even at near field. 这种方法考虑到了波前的球面特性,所以即使在近场条件下,也不会像传统方法那样由于采用了平面波近似而使图象畸变。
- A calculation method and calculation results that show that a new kind of shaped paraboloid antennas can produce a ringy radiation pattern is presented. 摘要通过数值计算发现：将抛物线绕通过焦点的非抛物线对称轴旋转而形成的赋形抛物面天线可产生环状的方向图主瓣（此主瓣指的是主瓣最大值处）。
- Verification of differences of characteristics of electromagnetic field image and radiation pattern in the near and far field are demonstrated. 验证电磁场影像及场型特性在近场与远场中之差异。
- Virtually LPI guide radar is a radar which stacks up against with ESM receiver of target in system detection sensitivenes,therefore in the system design it should consider the technology measures emphaticaly to ensure its antenna main lobe LPI capability. LPI制导雷达实质上是一种从系统上与目标的ESM接收机进行探测灵敏度较量的雷达,因此在系统设计上应着重考虑使其天线主瓣LPI的技术措施。
- The radiation pattern in the near and far field of each frequency component of the spectrum of current pulse on a transmission line. 传输线上脉波电流频谱中各频率成份在远近场区中场型之比较。
- This method more effectively suppresses spatial nonstationary and stationary noise than the adaptive null-forming beamformer method by using a rotatable main lobe in the 2-D plane. 该方法克服了自适应零限波束形成只能抑制空间相干噪声的缺点,并得到可在二维平面上旋转的波束主瓣。
- A new method to determine the mode content in over-moded rectangular waveguide by radiation pattern and Genetic Algorithm (GA) was presented. 摘要提出了一种基于辐射场和遗传算法分析矩形波导中工作模式的新方法。
