CAJ | 학술논문

为增强对偶频带法的保密性，提出了融入随机特性的宽间隔处理新方法———分割频带法。首先对给定的频带进行均匀划分，分割后各区间频带频点相互对应，然后按照随机跳变优先原则或平均间隔优先原则构造区间频带表，以控制跳变规律，实现各频带间的随机转换。分割频带法继承了对偶频带法的核心思想，不改变原始序列的周期长度。理论分析和Matlab仿真结果表明，分割频带法构造的宽间隔序列性能优越，在不恶化序列汉明相关性的前提下，提升了序列保密性和平衡性，可作为宽间隔处理的有效方法。
위증강대우빈대법적보밀성，제출료융입수궤특성적관간격처리신방법———분할빈대법。수선대급정적빈대진행균균화분，분할후각구간빈대빈점상호대응，연후안조수궤도변우선원칙혹평균간격우선원칙구조구간빈대표，이공제도변규률，실현각빈대간적수궤전환。분할빈대법계승료대우빈대법적핵심사상，불개변원시서렬적주기장도。이론분석화Matlab방진결과표명，분할빈대법구조적관간격서렬성능우월，재불악화서렬한명상관성적전제하，제승료서렬보밀성화평형성，가작위관간격처리적유효방법。
To strengthen the confidentiality of the dual-band method,a new method added randomness———frequency band division is proposed. At first, the given frequency band is evenly divided, and every fre-quency of different bands corresponds to each other. Then a frequency band table with randomness prior or average gap prior is generated to control hopping and changing among bands. Core idea of the dual-band method is inherited and the cycle length won't be changed. Theoretical analysis and simulation with Matlab show that sequences generated by the proposed method perform well. On the premise that Hamming correla-tion property doesn't worsen,confidentiality and balance have been further improved and the method can be used as an effective method of wide interval processing.