Anti-sorting signal design for radio frequency stealth radar based on cosine-exponential nonlinear chaotic mapping

Jia, Jinwei; Liu, Limin; Liang, Yuying; Han, Zhen

doi:10.1007/s11276-022-03149-9

Cited by 2 publications

(2 citation statements)

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“…Therefore, radio frequency (RF) stealth radar has become a research hotspot in the radar field. According to the three detection stages of signal interception, sorting and identification of broadband real-time electronic reconnaissance equipment such as radar warning receivers, the corresponding radar RF stealth mainly includes anti-interception [ 5 , 6 , 7 ], anti-sorting [ 8 ] and anti-identification. Anti-sorting, referring to preventing an electronic reconnaissance system from separating each radar pulse sequence from a random and interleaved pulse flow, is an important breakthrough point for anti-electronic reconnaissance systems [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…The other direction is that it is an improvement of the classical one-dimensional chaotic system, making the improved one-dimensional chaotic system more complex and stochastic. Dao Xinyu [ 32 ] and Jia Jinwei [ 33 ] designed improved one-dimensional chaotic systems based on cosine and exponential functions. Compared with the classical one-dimensional chaotic system, the improved one-dimensional chaotic systems have been significantly improved in terms of randomness, complexity and the balance of the generated chaotic sequences, and can better meet the needs of the application scenarios using chaotic systems to modulate radar signal parameters.…”

Section: Introductionmentioning

confidence: 99%

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Chaotic Mapping-Based Anti-Sorting Radio Frequency Stealth Signals and Compressed Sensing-Based Echo Signal Processing Technology

Jia

Liu

Liang

et al. 2022

Entropy

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Radio frequency (RF) stealth anti-sorting technology can improve the battlefield survival rate of radar and is one of the research hotspots in the radar field. In this study, the signal design principle of anti-sequential difference histogram (SDIF) sorting was explored for the main sorting algorithm of the SDIF. Furthermore, we designed a piecewise linear chaotic system with interval number parameterization based on random disturbance and proposed a method to modulate the repetition period of widely spaced signal pulses using a chaotic system. Then, considering the difficulty of the traditional signal processing method to measure the velocity of the highly random anti-sorting signals designed in this paper, we used compressed sensing (CS) technology to process the echoes of the signals to solve the velocity and distance of the detection targets. Finally, simulation verification was performed from the correctness of the signal design principle, the performance of the chaotic system, the anti-sorting performance of the designed signals and the recovery and reconstruction performance of the signals by CS. The results show that: (a) the signal design principle presented in this paper can guide the signal design correctly; (b) the performance of the piecewise linear chaotic system with interval number parameterization is better than that of the classical one-dimensional chaotic system; (c) the anti-sorting signal modulated by the chaotic system can achieve anti-SDIF sorting, and the anti-sorting signals designed in this paper can be processed to obtain the velocity and distance of the targets.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%