二阶互调误报干扰测试评估方法

IF 0.5 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Radioengineering Pub Date : 2024-06-01 DOI:10.13164/re.2024.0329

X. Du, G. H. Wei, D. L. Wu, X. D. Pan

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引用次数: 0

摘要

.针对雷达二阶互调误报（SIFA）效应的定量评估要求，从场-电路耦合机理出发，建立了雷达 SIFA 效应模型，并给出了模型的参数测试方法。以某型雷达为测试对象，采用电磁注入等效替代辐照法进行了 SIFA 效应测试。结果表明，当双频电磁干扰（EMI）的频率差在 3 MHz 以内，频率偏移在 ±200 MHz 以内时，被测雷达会产生高于选定灵敏度的 SIFA 信号。利用实验中测得的 SIFA 干扰效应模型参数，假定它们不随干扰场强变化而变化。结合被测雷达的 SIFA 干扰场强和单频阻断临界干扰场强，该效应模型可评估雷达 SIFA 干扰程度。

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Test Evaluation Method for Second-order Intermodulation False Alarm Interference

. Aiming at the quantitative evaluation requirements of radar second-order intermodulation false alarm (SIFA) effect, a radar SIFA effect model is established from the field-circuit coupling mechanism, and the parameter test method of the model is given. Taking a certain type of radar as the test object, the SIFA effect test is carried out by using the method of electromagnetic injection equivalent substitution irradiation. The results show that the tested radar will produce a SIFA signal higher than the selected sensitive level when the frequency difference of dual-frequency electromagnetic interference (EMI) is within 3 MHz and the frequency offset is within ±200 MHz. Using the model parameters of the SIFA interference effect measured in the experiment, it is assumed that they do not change with the interference field strength. Combined with the SIFA interference field strength of the tested radar and the single frequency blocking critical interference field strength, the effect model can evaluate the degree of radar SIFA interference.

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来源期刊

Radioengineering 工程技术-工程：电子与电气

CiteScore

2.00

自引率

9.10%

发文量

审稿时长

5.7 months

期刊介绍： Since 1992, the Radioengineering Journal has been publishing original scientific and engineering papers from the area of wireless communication and application of wireless technologies. The submitted papers are expected to deal with electromagnetics (antennas, propagation, microwaves), signals, circuits, optics and related fields. Each issue of the Radioengineering Journal is started by a feature article. Feature articles are organized by members of the Editorial Board to present the latest development in the selected areas of radio engineering. The Radioengineering Journal makes a maximum effort to publish submitted papers as quickly as possible. The first round of reviews should be completed within two months. Then, authors are expected to improve their manuscript within one month. If substantial changes are recommended and further reviews are requested by the reviewers, the publication time is prolonged.