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3D MIMO下的性能优化需要天线数讨论，给出各种天线阵的性能比较-3D MIMO performance optimization requires the number of antennas discussion, give the performance of various antenna array
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对煤矿中的无线通信的关键技术——频率的选择作了详细的描述，并通过仿真说明了在何种频率中才能达到无线天线发射的最优化-Coal mine in the key technology of wireless communication- the choice of frequency gave a detailed descr iption and the simulation shows what frequency to achieve the optimization of the wirel
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本学位论文的工作在超高频射频识别(UHFRFID)系统的理论研究和设计
实践领域进行，包括了长距离无源后向散射UHFRFID阅读器射频前端的研制、脚B(超宽带)RFID系统源脉冲波形的优化设计、UHFRFID阅读器小型化天线的研制和UHFRFID标签天线的优化设计四个方面的研究内容。
-The dissertation work in the UHF radio frequency identification (UHFRFID) system of theoretical resear
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主要介绍研究了智能天线技术对TDSCDMA网络规划和优化的影响分析-Introduces the study of smart antenna technology TDSCDMA network planning and optimization of analysis
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由于圆形阵列所具有的特性，使其正得到日益广泛的应用，但是圆阵方向图却具有
相对主瓣较高的旁瓣电平。为此，本文针对均匀圆形阵列的天线单元，应用遗传算法,分别
进行唯相位、唯幅度、相位-幅度的方向图综合方法，进行旁瓣电平的优化。仿真结果表明：
这些方法可有效地降低圆阵的旁瓣电平，为解决此类问题提供了有益的参考。 -Circular array of features, are being increasingly widely used, but the circular arra
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本文给出了一种利用幅相加权对阵列天线进行全局优化的方法。为了使天线的辐射波束形成给定的
方向图，采用联合应用DFP和BFGS公式的变度量算法对阵列天线各单元的馈电幅度和相位分布进行优化，
通过C++语言编程计算实现，从而使得优化后的阵列天线主波束形状能够与预给波束形状相吻合，达到设计
要求。全局优化是本文的特色，它弥补了局部优化结果的精确度依赖于初始值的缺点，因而得以保证通过优
化得到的天线主波束与给定波束的主瓣相吻合，副瓣也得到有效控制。该方法具有快速收敛，计算量小等优
点
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this techniques offer the flexibility of adapting original space-time multiple-antenna techniques
to the antenna
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Abstract
Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
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Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
in the w
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partical swarm optimization method for optimize antenna array-partical swarm optimization method for optimize antenna array...
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基于差分进化算法和遗传算法的混合优化算法及其在阵列天线方向图综合中的应用-Based on differential evolution algorithm and genetic algorithm hybrid optimization algorithm and its application in the array antenna pattern synthesis of
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propose using a probability distribution function (PDF)
of throughput measurements and an estimate of the number
of covered and uncovered users of each cell considered for
optimization in order to construct an objective function which
is bett
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Genetic Algorithms in the Design and
Optimization of Antenna Array Patterns
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