IFF pulse signal general recognition method and device

Abstract

The invention provides an IFF pulse signal general recognition method, which comprises the following steps of: detecting an IFF pulse signal to obtain a plurality of pulse description word sequences to be recognized; sequentially reading pulse description word sequences to be recognized, performing pulse width detection on each pulse description word sequence, and confirming the first pulse conforming to a pulse width detection judgment threshold as the 0th target pulse according to the characteristics of the target pulse sequence; and performing pulse interval detection on the pulse description word sequences after the first pulse description word sequence conforming to the pulse width detection judgment threshold, and confirming the recognized pulse description word sequence as the jth target pulse under the condition that the pulse interval of the pulse description word sequences after the first pulse description word sequence conforming to the pulse interval detection judgment threshold. According to the method, the pulse signal with any characteristic can be recognized, and the problems that the design is carried out only aiming at the characteristic information of the specific pulse signal and the recognition signal of a new system is not adapted in the prior art and a large number of false alarms exist in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of pulse information identification, in particular to a general identification method and device for IFF pulse signals. Background technique [0002] Identification friend or foe (referred to as "IFF") is an important content in the field of electronic reconnaissance, and its role in electronic reconnaissance countermeasures and other applications is becoming more and more critical. In the identification friend or foe system, a specially designed pulse sequence with a specific format is usually used for identification friend or foe. The more typical ones are the US-made MARKX mode, MARKXII mode, S mode and the latest MARKX IIA mode 5 and other signals. There are also Russian systems. IFF pulse signal. At present, most IFF signal identification methods are designed for the characteristic information (pulse interval, pulse width, pulse amplitude) of specific pulse signals, which are not universal. For the ide...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a general identification method and device for IFF pulse signals, which can identify pulse signals with arbitrary characteristics, and solve the problem in the prior art that the design is only for the characteristic information of a specific pulse signal. The problem of identifying signals that do not adapt to the new system and the existence of a large number of false alarms in the existing technology will increase the computational complexity of back-end pulse recognition, and the technical problem that false pulses may even be detected when the target pulse characteristics are not obvious

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