Research Complex Environment Radar Signal Sorting Method

In the modern environment of electronic warfare,the radar signal becoming dense andcomplex, new type of radar systems are emerging constantly, New radar anti-jammingability is also being strengthened ceaselessly and improved, All of these environments andrequirements presents new challenges to radar signal sorting technology, use the traditionalradar sorting method, has not been able to achieve real-time and efficiency requirements,And the sorting efficiency is declining, sorting radar signal timely and correctly is a key inthe signal sorting system. So the research of radar signal sorting technology is veryimportant.The main contents of this paper includes the following sections:The first chapter mainly introduces the radar signal sorting as well as the importance ofradar signal sorting technology in domestic and abroad, and analysis the feature of radarsignal parameters.The second chapter mainly introduces the radar pulse signal characteristics ofparameters and common use of modulation mode, Also give an overview of the commonmethod of radar signal sorting, on the structure and function of radar signal processor forunderstanding. In this chapter mentions the radar in-pulse characteristics, the details will bedescribed below.The third chapter mainly introduces several double frequency radar signal sortingalgorithm based on PRI, mainly include: Identification method of double frequency domain,Correlation function method of double frequency identification technique, Histogramalgorithm(SDIFandCDIF),PRI transform method and dynamic correlation method.compared and analyzed the last several algorithms.The fourth chapter mainly introduces the specific emitter pulse signal identificationmethod and the radar pulse signal in-pulse characteristics of several modulation modes,Introduce the one-dimensional interpolation method and applications of fingerprint methodin extracting the in-pulse characteristics, And the pulse rising edge and falling edgeextraction for simulation.The fifth chapter puts forward a comprehensive method of radar signal sorting research,and give the simulation of the received radar pulse signal flow, analysis the integratedalgorithm in separation process, with pulse jitter and small pulse loss exist at the same time we give the analysis and the simulation of the combining of the improved PRI transform andSDIF algorithm and give effect of the comprehensive sorting method. The fact proves thatbased on SDIF and improved PRI transform method combined separation method in thesimultaneous presence of missing pulse and pulse jitter situation still has a good sortingeffect.Model feature of radar pulse signal will be more and more complex, how to utilize thepulse parameters in radar signal sorting need further study, but also need further moreresearch and improvement in sorting algorithm.The results of the research on radar signalparameter extraction and in-depth understanding of radar signal sorting method has animportant reference value.