摘要： 针对车载VHF跳频电台的共址干扰问题，建立一种定频模式下的共址干扰分析模型。分析共址干扰的主要影响因素，通过实验和理论研究对干扰功率、频率、误码率等重要参数进行定量分析，建立定频模式下的共址干扰分析模型。结合VHF组网的约束条件，提出一种跳频系统的误码率计算方法，并采用双层多目标算法，构建基于共址电台规模和频表分配的优化设计模型。实例分析表明，该模型可优化配置电台工作参数，有效降低共址跳频电台误码率。
关键词:
跳频电台,
共址干扰,
误码率,
安全带宽,
频表分配,
遗传算法
Abstract: For the Co-site Interference(CI) problem of vehicular VHF Frequency-Hopping(FH) radio, a comprehensive and in-depth research is conducted, and an optimization design model is established. The CI main influence factors are analyzed. Through experiments and theoretical research on the important parameters, such as interference power, frequency and Bit Error Rate(BER), the CI analysis model of fixed frequency pattern is established. Based on these researches, through analyzing the constraint conditions of VHF networking, a BER computation method of FH system is proposed, and combined with double multi-objective algorithm, an optimization design model based on co-site radios scale and frequency-distribution is constructed. Example analysis shows that the model is the foundation in decreasing FH radios BER and arranging parameters of radios.
Key words:
Frequency-Hopping(FH) radio,
Co-site Interference(CI),
Bit Error Rate(BER),
security bandwidth,
frequency-table assignment,
genetic algorithm
中图分类号:
全厚德, 赵波, 崔佩璋. 车载跳频电台共址干扰研究及其优化[J]. 计算机工程, 2012, 38(22): 62-66.
QUAN Hou-De, DIAO Bei, CUI Pei-Zhang. Research on Co-site Interference of Vehicular Frequency-Hopping Radio and Its Optimization[J]. Computer Engineering, 2012, 38(22): 62-66.