一種基于差分跳頻轉(zhuǎn)移函數(shù)的短波跳頻碼
A Kind of Shortwave Frequency Hopping Code Based on DFH Transform Function
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摘要: 該文提出了一種基于Logistic映射的短波差分跳頻轉(zhuǎn)移函數(shù)算法,利用該算法構(gòu)造跳頻圖案,并對(duì)跳頻圖案進(jìn)行了數(shù)值仿真和性能檢驗(yàn)。研究結(jié)果表明:該算法所產(chǎn)生的跳頻圖案不僅具有較好的隨機(jī)性、均勻性、平衡性和相關(guān)特性,符合短波跳頻圖案要求,而且,具有大的線性復(fù)雜度,因此,基于混沌映射構(gòu)造的短波跳頻序列具有較強(qiáng)的抗干擾能力和安全保密性。
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關(guān)鍵詞:
- 短波; 差分跳頻; 跳頻序列; 混沌
Abstract: A new shortwave frequency hopping codes based on difference frequency hopping transform function which depended on logistic map is presented. The performance of the frequency hopping codes is researched .The results indicate that it has better randomicity, uniformity, balance, and higher privacy because of the character of chaos. -
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