Signal Analysis And Identification Of ELINT

Signal sorting and identification in ELINT is an important topic in the domain of ECM, the research on which is significant in theory and practice. This paper firstly discusses the principle of ELINT, then goes deep into algorithms of signal processing. A lot of simulations are also made to validate the feasibility of these algorithms. These algorithms can be devided into three parts: the algorithms on radar signal modulation, signal envelop analysis and deinterleaving of radar signals. In the first part, the paper make the estimation of pulse modulation parameters in different methods. In the second part, the paper discusses the defination of radar signals' envelope and the characters of the envelope in the time and frequency are presented. In the third part, some algorithms based on pulse repetition intervals (PRI) are introduced.Finally, the software developed with Vc++ 6.0 and based on windows for signal processing of ELINT is introduced, including the whole structure ,the function modules and interface relations.