伪码快速捕获算法分析与仿真

随着测控领域对数据保密性要求的不断提高,对扩频伪码长度的选取也不断增加,因此,采用一般方法进行伪码的捕获已无法满足系统对于实时性的要求。文中通过对传统伪码捕获方法及其优缺点进行分析,采用以快速傅里叶变换为基础,在频域捕获伪码的方法,满足了测控通信系统中长伪码捕获的实时性要求,通过仿真验证了方法的有效性。

The PN Code Rapid Acquisition Algorithm Analysis and Simulation

With the ever higher requirements for data confidentiality in the field of measurement and control,the length of the pseudo-code for spreading selection is also increasing,and the general method of pseudo-yard catch has failed to meet the system real-time requirements.The traditional pseudonoise code acquisition method is discussed with its advantages and disadvantages pointed out.A fast Fourier transform-based pseudo-code in the frequency domain acquisition method is employed to meet the requirements for real-time acquisition of long PN code in the monitoring and control communication system.Simulation results verify the effectiveness of the method.