随机和数学模型；
分析了工作原理和数学模型，研究了它的抗干扰特性，给出了离散随机脉位序列调制码的产生方案。
The block diagram of the system is given and its working principle and mathematic model are analyzed. And also, its anti jamming performances are studied.
首次给出了该随机序列的模糊函数数学表达式。给出了其系统原理框图，分析了其工作原理和数学模型，研究了它的抗干扰特性。
The expression of its ambiguity function is firstly presented, the block diagram of the system is given, the working principle, mathematical model and its performances of anti-jamming are analyzed.
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