非相干散射雷达电离层参数提取简化算法的仿真

Simulation on a simplified algorithm for ionospheric incoherent scatter radar parameter extraction

在探测电离层的过程中,非相干散射雷达能够接收到电离层散射的回波信号,通过该信号的散射谱进行反演计算,可以获得相应的电离层参数。现有的常规雷达数据处理方法过程复杂,运行缓慢,一般只能在高性能服务器上使用,实时计算效率不高。为实现快速提取参数的目的,并在普通电脑上能够进行实时数据处理,针对非相干散射雷达的参数提取的方法进行分析和简化处理后得到简化算法。在MATLAB软件平台上搭建了一个非相干散射雷达的仿真平台,对Svalbard雷达的观测数据的处理结果与GUISDAP软件的反演结果进行对比。分析对比结果可知,两者反演数据的结果基本吻合,变化趋势相同。因此,该提取电离层参数的简化算法具有较好的实用性和可靠性,有效地提高了雷达数据处理效率。

In the process of detecting the ionosphere,the noncoherent scattering radar can receive the echo signal scattered by the ionosphere.The signal was processed to obtain the corresponding scattering spectrum,and the corresponding ionospheric parameters were obtained by inversion calculation.The conventional radar data processing methods were complex and slow.Generally it only in the high-performance server to use,real-time computing efficiency was low.In order to realize the rapid extraction of parameters and the real-time data processing on the ordinary computer,the simplified algorithm was obtained by analyzing and simplifying the processing of the noncoherent scattering radar signal and extracting the ionospheric parameters.According to the theory of incoherent scatter radar,the simulation platform was built on the MATLAB software platform,and the results of the observation data of Svalbard radar were compared with the results of GUISDAP software.The results showed that the results of the inversion were consistent with the same trend.Therefore,the simplified algorithm to extract ionospheric parameters has good practicability and reliability,and it can effectively improve the efficiency of radar data processing.