用于传感信号检测的混沌振子数值并行求解方法  

Numerical Parallel Solution Method of Chaotic Oscillator for Sensing Signal Detection

作　　者：姜敏敏[1] 罗文茂[1] 赵力[2] JIANG Minmin;LUO Wenmao;ZHAO Li(Nanjing Vocational College of Information Technology,Nanjing Jiangsu 210023,China;School of Information Science and Engineering,Southeast University,Nanjing Jiangsu 210096,China)

机构地区：[1]南京信息职业技术学院,江苏南京210023 [2]东南大学信息科学与工程学院,江苏南京210096

出　　处：《传感技术学报》2022年第4期518-522,共5页Chinese Journal of Sensors and Actuators

基　　金：江苏省高校“青蓝工程”优秀青年骨干教师培养计划;国家重点研发计划资助项目(2018YFB1305203);校级横向课题资助项目(HX20220604)。

摘　　要：传感信号检测中常用到非刚性耦合混沌振子,对非刚性耦合混沌振子进行数值求解时常用定步长4阶龙格库塔法,但是其具有运算量大、运算速度慢的缺点。为了提升非刚性耦合混沌振子数值求解的速度,给出了一种半隐式的并行算法,其运算速度是定步长4阶龙格库塔法的一倍。仿真与实验结果表明,该并行算法在4阶精度时和定步长4阶龙格库塔法有类似的计算精度,而在实际信号检测任务中采用2阶精度的并行算法即能满足需求。Non-rigid coupled chaotic oscillators are often used in sensing signal detection.The method of fixed step fourth order Runge-Kutta is often used in numerical solution of non-rigid coupling chaotic oscillators,but it has the disadvantages of large amount of calculation and slow computation speed.In order to speed up the computation of non-rigid coupled chaotic oscillators,a semi-implicit parallel algorithm is proposed,which is twice the speed of fixed step fourth order Runge-Kutta method.The simulation experimental results show that the parallel algorithm has the same accuracy as fourth order Runge-Kutta method under the condition of fourth-order accuracy,and the parallel algorithm with the second order accuracy can meet the requirements in actual signal detection tasks.

关 键 词：信号检测 并行计算 半隐式 耦合混沌振子 非刚性常微分方程 递推方法 

分 类 号：TN98[电子电信—信息与通信工程]