計(jì)數(shù)式TOD跳頻碼發(fā)生器算法的構(gòu)造
Construction of algorithm for frequency hopping code generator using counting TOD
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摘要: 為同步長周期的跳頻碼序列,必須使用實(shí)時(shí)時(shí)間TOD。一種新的眼光是將跳頻碼發(fā)生算法看作是對TOD這一特殊信息序列的分組加密變換。單調(diào)遞增的計(jì)數(shù)式TOD是目前常用的TOD序列形式,然而,現(xiàn)有的跳頻碼發(fā)生算法并不適應(yīng)長周期、單調(diào)遞增計(jì)數(shù)式TOD的使用,該文討論了分析、改造跳頻碼序列發(fā)生算法使之適合長周期單調(diào)遞增計(jì)數(shù)式TOD的需求、又保持良好跳頻特性這一重要任務(wù)。
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關(guān)鍵詞:
- 跳頻通信; 碼發(fā)生器; 算法; 實(shí)時(shí)時(shí)間
Abstract: It is necessary to use the reference real time TOD(Time Of Date) for synchronizing a hopping sequence with long period. There is a new view that the generation of hopping codes is a process in which the special information sequences TOD are translated by a block encoding. Today monotonously increasing TOD is a common form, but there are collides between existing generating algorithm of hopping code and monotonously increasing TOD with long period. A important task of study on generating algorithm of hopping code which is suitable for monotonously increasing TOD with long period and keeps good properties is discussed in the paper. -
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