Airborne Silent Radio Frequency Noise Shielding

Aoya WANG; Shenghua ZHOU; Xiaojun PENG; Hui MA; Hongwei LIU; Hongtao SU; Junkun YAN

doi:10.11999/JEIT200981

Volume 43 Issue 10

Oct. 2021

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Aoya WANG, Shenghua ZHOU, Xiaojun PENG, Hui MA, Hongwei LIU, Hongtao SU, Junkun YAN. Airborne Silent Radio Frequency Noise Shielding[J]. Journal of Electronics & Information Technology, 2021, 43(10): 2790-2797. doi: 10.11999/JEIT200981

Citation:

Aoya WANG, Shenghua ZHOU, Xiaojun PENG, Hui MA, Hongwei LIU, Hongtao SU, Junkun YAN. Airborne Silent Radio Frequency Noise Shielding[J]. Journal of Electronics & Information Technology, 2021, 43(10): 2790-2797. doi: 10.11999/JEIT200981

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Airborne Silent Radio Frequency Noise Shielding

doi: 10.11999/JEIT200981

1.
National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
2.
China Academy of Launch Vehicle Technology, Beijing 100000, China

Funds: The National Natural Science Foundation of China (62071345, 61701379, 61901344), The National Science Fund for Distinguished Young Scholars (61525105), 111 Project (B18039), Shaanxi Province Key Science and Technology Innovation Team Project，Special Funds for Basic Scientific Research in Central Universities

Received Date: 2020-11-18
Rev Recd Date: 2021-04-01

Available Online: 2021-04-25

Publish Date: 2021-10-18

Abstract

Abstract

To avoid the detection to own fighters from adversary’s radar, a method is proposed in this paper, under which the fighter transmits radio frequency shielding signals. If Constant False Alarm Rate (CFAR) detector is used in adversary’s radars, adversary’s noise level of radar channel is overestimated when the fighter transmits the certain envelope radio frequency shielding signals by own fighters. The effect of making own fighters invisible to the radar is achieved while radio frequency shielding signals avoid being intercepted by adversary electronic reconnaissance equipment. For these purposes, it is needed to estimate the time of arrival of the adversary’s radar signal to the fighters, evaluate the enemy’s detection capability, and design the envelope and power of the shielding noise. Based on the Cell Average-Constant False Alarm Rate (CA-CFRA) detector, numerical simulation is carried out to analyze the relationship between the radio frequency shielding envelope and the interception probability of the shielding signal and the detection probability of the target. These simulation results show that the shielding method can achieve a better radio frequency shielding effect with properly designed shielding signal envelope.
- Electromagnetic stealth,
- Silent noise,
- Detection performance,
- Constant False Alarm Rate (CFAR) detector,
- Incoherent detector

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References(16)

References

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