为了增大混沌跳频码的周期和非线性复杂度，我们利用多个不同混沌映射组成一个级联混沌映射，并用来设计跳频码。
In order to enhance the nonlinearity and period length, different chaotic maps are combined into a cascaded chaotic map to design FH codes.
基于混沌跳频码序列构造固有的确定性、非线性等特点，提出了对抗混沌跳频通信的非线性自适应预测对抗的新概念。
Based on the deterministic characterization of chaotic FH code construction and nonlinear dynamics of chaotic FH code, nonlinear adaptive predictive countermeasure method is proposed to interfere.
深入研究了实际侦收到的跳频码的混沌特性，提出了跳频码的混沌模型。
Fifthly, we lucubrate the chaotic characteristic of the real hopping frequency codes and propose the chaotic model of hopping frequency codes.
众所周知，设计好的跳频码和在混沌跳频通信系统中实现收发双方的同步是很困难的。
As is known it is difficult to design good FH code and synchronize the transmitter and receiver in a chaotic FH communication system.
众所周知，设计好的跳频码和在混沌跳频通信系统中实现收发双方的同步是很困难的。
As is known it is difficult to design good FH code and synchronize the transmitter and receiver in a chaotic FH communication system.
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