扫频雷达单频连续波电磁辐射阻塞效应分析

doi:10.3969/j.issn.1001-506X.2020.12.09

Abstract

Abstract:

In order to master the interference rule of swept frequency radar equipment under continuous wave electromagnetic radiation, to reveal the interference mechanism of single frequency continuous wave electromagnetic radiation to swept frequency radar, the Ku-band swept radar is taken as the test object, and a test platform is established, the full level irradiation method is used to carry out the electromagnetic radiation test of the single frequency continuous wave in band, to determine the electromagnetic interference rule of radar equipment. The results of the single frequency continuous wave electromagnetic radiation test in the band show that the target level of the echo for the radar under test changes with the interference intensity. Under different interference frequencies, the change law of electromagnetic interference effect of radar equipment is basically the same.The 6 dB suppression level is selected as the sensitive criterion to test the radar equipment interference threshold at different frequencies. The test results show that the small electromagnetic radiation in the radar band (interference frequency difference at 0.14 GHz) under test can cause effective interference to radar equipment.

Key words: swept radar, electromagnetic radiation, single frequency continuous wave, sensitivity criterion

CLC Number:

TN97

Xue DU, Guanghui WEI, Shizhao REN, Kai ZHAO. Analysis of blocking effect for single frequency continuous wave electromagnetic radiation in swept frequency radar[J]. Systems Engineering and Electronics, 2020, 42(12): 2742-2746.

Figures/Tables 4

References 22

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组号	无干扰	E₁=2 V/m	E₂=7.5 V/m
1	59.60	43.02	28.76
2	59.51	43.01	28.79
3	59.61	42.99	28.85
4	59.50	43.05	28.52
5	59.49	42.98	28.90
6	59.50	42.98	28.91
7	59.39	42.98	28.90
8	59.36	42.99	28.93
9	59.40	42.98	28.92
10	59.28	42.98	28.92
均值	59.46	42.99	28.84
方差	0.009	0.001	0.014

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Analysis of blocking effect for single frequency continuous wave electromagnetic radiation in swept frequency radar

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