华侨大学学报（自然科学版）
華僑大學學報（自然科學版）
화교대학학보（자연과학판）
Journal of Huaqiao University (Natural Science)
2015年
6期
632-635
,共4页
发光二极管%阵列%遗传算法%光照度%可见光通信
髮光二極管%陣列%遺傳算法%光照度%可見光通信
발광이겁관%진렬%유전산법%광조도%가견광통신
light emitting diode%array%genetic algorithm%illumination distribution%visible light communication
采用遗传算法快捷、准确地优化发光二极管（LED）阵列结构，使其在接收器上（目标平面）的光照分布均匀．推导 LED 阵列的照度分布函数，以光照函数标准差与平均差的比值构建一个适应度函数，以此衡量目标平面的光照分布均匀度．获得光照分布最优时的 LED 阵列结构数据后，应用 MATLAB 对几何模型进行仿真．仿真结果表明：目标平面的照度均匀度达到97．4％，验证了所提算法的有效性与可行性．
採用遺傳算法快捷、準確地優化髮光二極管（LED）陣列結構，使其在接收器上（目標平麵）的光照分佈均勻．推導 LED 陣列的照度分佈函數，以光照函數標準差與平均差的比值構建一箇適應度函數，以此衡量目標平麵的光照分佈均勻度．穫得光照分佈最優時的 LED 陣列結構數據後，應用 MATLAB 對幾何模型進行倣真．倣真結果錶明：目標平麵的照度均勻度達到97．4％，驗證瞭所提算法的有效性與可行性．
채용유전산법쾌첩、준학지우화발광이겁관（LED）진렬결구，사기재접수기상（목표평면）적광조분포균균．추도 LED 진렬적조도분포함수，이광조함수표준차여평균차적비치구건일개괄응도함수，이차형량목표평면적광조분포균균도．획득광조분포최우시적 LED 진렬결구수거후，응용 MATLAB 대궤하모형진행방진．방진결과표명：목표평면적조도균균도체도97．4％，험증료소제산법적유효성여가행성．
For obtaining uniform distribution of illumination on the receiver plane (target),the genetic algorithm is used to accurately and quickly optimize the light emitting diode (LED)array.LED array illumination distribution function is derived.A fitness function with the ratio of standard deviation and mean difference of the illumination function is built. The optimal distribution of LED array by applying the light distribution uniformity on the target plane is then achieved. Finally,the geometric model is simulated by using MATLAB.The simulation results show that the illumination uniformi-ty on the target plane reached 97.4% and indicate that the proposed algorithm is feasibility and effectiveness.
