长波天线自动调谐研究及算法仿真  

Long-Wave Antenna Automatic Tuning Research and Algorithm Simulation

作　　者：王孝华 李丽华[1] 翟琦[1] 王永斌[1] WANG Xiao-hua;LI Li-hua;ZHAI Qi;WANG Yong-bin(College of Electronic Engineering,Naval University of Engineering,Wuhan Hubei 430033,China)

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《通信技术》2018年第12期2853-2860,共8页Communications Technology

摘　　要：针对现有长波发信系统中的调谐装置复杂、手动操作繁琐的不足,利用调谐匹配网络和微处理器实现长波天线自动调谐。具体地,利用FEKO对天线的阻抗特性进行仿真分析,选择了合适的Γ型调谐匹配网络,并根据仿真数据确定了调谐匹配网络的元件参数;利用串联2次电感计算阻抗参数的检测方式,提高了检测精度;最后,提出并仿真了比较步进和基于遗传算法的两种调谐算法,同时从调谐的精确度、匹配所需的迭代次数等角度进行了分析。结果表明,基于遗传算法的调谐方法相比于比较步进的方法,速度更快,但精确度略有下降。Aiming at the complexity of the existing tuning device in the long-wave signaling system and the cumbersome manual operation,the tuning network and the microprocessor are used to realize the automatic tuning of the long-wave antenna.Specifically,FEKO is used to simulate the impedance characteristics of the antenna.The appropriate T type tuning matching network is selected,and the component parameters of the tuning matching network are determined based on the simulation data.The detection method of the impedance parameter is calculated by using the tandem secondary inductance to improve the detection accuracy.Finally,two tuning algorithms based on stepping and genetic algorithm are proposed and simulated.At the same time,it is analyzed from the perspective of the accuracy of tuning,the number of iterations required for matching,and so on.The results indicate that the genetic algorithm-based tuning method is faster than the step-by-step method,but the accuracy is slightly reduced.

关 键 词：长波天线 阻抗特性 自动调谐 遗传算法 

分 类 号：TN822.1[电子电信—信息与通信工程]