2019
DOI: 10.1109/access.2019.2955819
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A Novel Radar Signals Sorting Method-Based Trajectory Features

Abstract: When several foreign fighters with the same type enter detection range, the electronic warfare (EW) receivers will intercept many the same type radar emitter signals. If the intercepted pulse is processed by the traditional sorting methods, the number of emitters cannot be identified. The main reason is that the same type of radar has similar parameters. It will cause a devastating influence on subsequent strategic decisions. A novel sorting method based on the trajectory features is proposed to solve the afor… Show more

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Cited by 12 publications
(6 citation statements)
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“…With the continuous emergence of new radar system, the reconnaissance signal presents the characteristics of complex waveform parameter modulation and serious overlapping of waveform parameters among multiple emitters. The performance of presorting algorithm based on waveform parameters decreases seriously [6], and it is difficult to achieve effective sorting of radar radiation source signals. However, although the pulse sequences are interleaved under the condition of interleaved multiple radar emitters, the correlation between the pulse signals of the same radiation source is not broken.…”
Section: Introductionmentioning
confidence: 99%
“…With the continuous emergence of new radar system, the reconnaissance signal presents the characteristics of complex waveform parameter modulation and serious overlapping of waveform parameters among multiple emitters. The performance of presorting algorithm based on waveform parameters decreases seriously [6], and it is difficult to achieve effective sorting of radar radiation source signals. However, although the pulse sequences are interleaved under the condition of interleaved multiple radar emitters, the correlation between the pulse signals of the same radiation source is not broken.…”
Section: Introductionmentioning
confidence: 99%
“…forms a PRI spectrum with a peak at the true PRI value. Then, the discrete formulation of the PRI transform is obtained by substituting into (19).…”
Section: Separation Of Tracking Pulses and Search Pulsesmentioning
confidence: 99%
“…This is essential for extracting features and identifying radar emitter signals [1][2][3][4][5]. Generally, there are two types of radar signal sorting methods [6,7]: one involves pre-sorting algorithms based on parameter correlation, and the other focuses on PRI sorting methods based on the correlation of Time Of Arrival (TOA) between pulses. The process of de-interleaving pulse sequences based on TOA and identifying modulation types based on PRI can be used to sort multiple interleaved radar emitter signals by utilizing the relevance from the same emitter.…”
Section: Introductionmentioning
confidence: 99%