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- low sidelobe beamwidth 低副瓣
- Compared to traditional microstrip antenna, the presented antenna possesses broader beamwidth, low sidelobe and broad circu... 传统的微带天线通常具有低剖面、安装容易、重量轻以及与承载的母体在外形上拥有一致性等优点。
- The affects of polytropic plus integration number and low sidelobe level were considered in the detection probability calculation. 考虑了相控阵雷达多变的 脉冲积累数和极低的副瓣电平对发现概率的影响。
- To obtain low sidelobe level,tolerance analysis is applied to the antenna array composed by DAUs and the relationship between DAU features and surface planeness error are studied. 为了确保天线低副瓣指标,需要对由DAU拼装形成的天线阵面进行平面度误差分析,并寻求基本拼装单元DAU结构要素与阵面平面度误差之间的联系。
- The design and analysis of a low sidelobe Cassegrain antenna using resistive hyperboloid are presented in detail. The surface resistivity of hyperboloid can be expressed in terms of the target low sidelobe aperture distribution. 本文用沿径向有阶梯变化的表面电阻的双曲面来设计低旁瓣卡塞格伦天线 ,给出了双曲面表面电阻值与所需的低旁瓣口径场分布理论值的关系式。
- With the simulation and analysis using MATLAB, this paper studied a method to design low sidelobe FSK/PSK radar signal with Genetic Algorithm and three algorithms for pseudo-random FSK/PSK radar signal sidelobe suppression. 本文讨论了一种用遗传算法设计低旁瓣水平FSK/PSK信号的方法和三种伪随机FSK/PSK信号旁瓣抑制算法,并用Matlab进行了仿真分析。
- Theoretical analysis and calculational results are presented to demonstrate that due to the low sidelobe gain of beam, the degree-of-freedom (DOF) of the clutter is significantly decreased. 理论分析和仿真计算结果表明，和差波束低副瓣增益有效抑制了旁瓣杂波，降低了杂波自由度。
- Keywords Wideband constant beamwidth beamforming;distortionless;moving targets;radiated noise;low sidelobe;robust beamforming;optimum design;adaptive beamforming;experiment test; 宽带恒定束宽波束形成;无失真;运动目标;辐射噪声;低旁瓣;稳健的波束形成;优化设计;自适应波束形成;实验验证;
- The backfire antenna is a kind of compact structure, high gain and lower sidelobe antenna, but its bandwidth is limited. 背射式天线具有增益高、副瓣低和结构紧凑的特点,但其频带较窄。
- The characteristics is used to design a ring-focus Cassegrain antenna and it was found that it has higher gain and lower sidelobe level. 文中还利用上述特性设计了一个大口径的焦环卡塞格伦天线 ,结果显示 :它有较高的增益和较低的副瓣电平
- It is shown that the lower sidelobe level of multi-step amplitude quantized array should be achieved using the fewer number of quantized steps. 研究结果表明，利用较少量化台阶数，多阶振幅量化阵可实现较低的副瓣电平。
- The design of an airborne off-set parabolic reflector antenna with low sidelobes is discussed. 介绍了机载雷达低副瓣偏馈抛物面无线的设计。
- The government is trying to keep a low profile on this issue. 政府力图在这个问题上保持低姿态。
- The singer forced his low notes. 那位歌手勉强唱出低音。
- The Optimum Design of 8mm lower Sidelobe Cassegrain Antenna 八毫米低副瓣卡氏天线的优化设计
- He because of bashful but low head. 他因羞愧而低下了头。
- The ship lay keeled over at low tide. 那艘船因退潮而倾覆。
- My home town lies low in a hidden valley. 我的家乡位于一个隐蔽的山谷里。
- Low grades are getting Hellen down. 低分数使海伦闷闷不乐。
- After a brief rally share fall back to a new low. 股票经过一次短暂回升后回落到一个新的低点。
