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- TRANSMIT ANTENNA PATTERN SYNTHESIS FOR SECONDARY SURVEILLANCE RADAR 航管二次雷达发射天线方向图综合
- Antenna Pattern Synthesis for Ambiguity Depressing in Spaceborne SAR Systems Based on Genetic Algorithms 基于遗传算法的星载合成孔径雷达天线方向图与模糊综合
- Antenna pattern synthesis 天线方向图综合
- array antenna pattern synthesis 阵列方向图综合
- A new method of transmit pattern synthesis for Secondary Surveillance Radar (SSR) is presented.This method is concerned with an active phasedarray antenna. 该文介绍航管二次雷达(SSR)发射天线方向图综合的新方法,这种方法以有源相控阵天线为基础。
- Accurate measurement of antenna pattern is important to spaceborne SAR image application, and distributed target antenna pattern measurement is widely concerned. 天线方向图的准确测量,对星载SAR图像的应用具有重要作用。 分布目标辐射定标在星载SAR天线方向图测试中受到广泛重视。
- This paper presents a new pattern synthesis algorithm for arbitrary arrays based on adaptive array theory. 基于自适应天线阵理论 ,给出了一种用于任意线阵天线的主波束赋形算法。
- It is convenient to measure the RCS, and the antenna pattern by this system having resolutions of both the turning angle of 1/36 degree and the echo signal voltage of 2.5mV. 该系统具有1/36度的转角分辨能力和2.;5mV的回波电压分辨能力;适用于目标RCS、天线方向性图等测量。
- A 3D pattern synthesis method for cylindrical conformal arrays based on adaptive array theory is presented. 最后基于自适应天线阵理论，研究共形阵的赋形算法，并给出一种用于共形阵列天线三维方向图的波束赋形算法。
- A double population genetic algorithm (DPGA) is presented and applied to synthesize the array antenna pattern by controlling only the current amplitudes. 提出一种双种群遗传算法(DPGA)优化阵元电流幅度,以实现对阵列天线方向图的综合。
- An adaptive algorithm is applied to pattern synthesis of linear arrays with mutual coupling, which is of great practical significance. 应用一种自适应算法进行天线阵方向图综合，把阵元间的互耦考虑在内，具有很强的实际意义。
- A weighting function iteration algorithm used in beam pattern synthesis for wideband array based on adaptive iteration theory was presented. 基于自适应迭代理论，提出了一种应用于宽带阵列方向图综合的权函数迭代算法。
- With the algorithm pattern synthesis for uniform and nonuniform arrays is performed and mainlobes and sidelobes can be controlled effectively as designed. 分别对等间距和不等间距阵列进行了方向图综合，都能够按设计要求有效地控制主瓣电平和副瓣电平，使其达到预期的效果。
- The reasons are analyzed,and a modification method is presented, in which DSR controls antenna pattern used by transmitting node,part of packets are sent with omni-antenna and the others are sent with directional antenna. 分折了此现象产生原因,并提出了一个改进方法; 由DSR协议参与控制分组发送时使用的天线模式,对部分影响协议性能最为严重的分组采用全向发送,其余分组使用方向天线发送。
- In this paper some salient features and advantages of DAR are described,and some problems associated with space-time signal processing and antenna pattern are discussed,finally a self-cohering method using beamforming technique is introduced. 本文论述了它的一些突出特点和优点,讨论了空时信号处理与天线方向图的一些问题,最后介绍了利用自适应波束形成获得自相干的方法。
- Researches about pattern synthesis, adaptive nulling and multibeam digital beamforming for multibeam antennas array are also covered in the dissertation. 本文针对多波束阵列天线的方向图赋形、自适应调零以及多波来数字波束形成等方面进行了探讨。
- However, the optimal results being a statistical average, the antenna pattern of random phasing is unsteady with the scanning angle and scanning period, so it is not easy to form the actually needed codes for control of the antenna scanning. 应用遗传算法对随机馈相方案进行优化，能有效抑制寄生副瓣的出现，形成扫描空域确定的波控代码，实现相控阵波束无惯性的精确指向。
- The thesis not only provided the Lagrange multiplier algorithm for designing the desample filter, but also the algorithm was designed to take account the effect of the antenna pattern of the SAR used in collecting the raw data. 论文不仅提出了使用拉格朗日乘子法对降采样滤波器的设计方法而且在设计中考虑了天线方向图的影响。
- Finally we use FR4 to fabricate the antenna and use the vector network analyzer to measure the reflect coefficient、antenna impedance and the antennas pattern in the chamber. 再以FR4板来实现并用网路分析仪来量测其反射系数与用无反射室实验室来量测天线的场形。
- The jammer and fuzes under test are physical models, while the antenna patterns of the jammer and fuzes, the trajectory, the space geometric disposal of ECCM field tests are in their mathematical models. 弹丸弹道、引信和干扰机的天线方向图、空间几何配置等为数学模型,由微机和有关接口构成混合仿真系统。
