摘要
为实时产生混沌噪声,设计了一种基于Tent映射双向耦合映象格子和"接收-拒绝"法的混沌噪声产生器,将其由浮点运算转换为定点运算后在FPGA上实现。所实现的混沌噪声产生器具有结构简单、运算复杂度低、资源占用少且易于控制等优点。性能测试结果表明:混沌噪声产生器能够产生具有任意分布和平坦功率谱的混沌噪声,且随机性较好。
To generate chaotic noise, a chaotic noise generator is designed based on Tent double-way coupled map lattice and ＂acceptance-rejection＂. The generator is realized on FPGA after it is converted from floating pointed operation to fixed pointed operation. The realized generator has advantages including simple structure, low com- plexity of algorithm, accounting for few resources and easy control. The results of performance test show that the generator can generate chaotic noise with arbitrary distribution, flat power spectrum and good randomicity.
出处
《电讯技术》
北大核心
2011年第4期26-30,共5页
Telecommunication Engineering
