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- Title
间歇采样转发干扰的时频域识别方法.
- Authors
余康林; 匡华星; 王超宇
- Abstract
To solve the problem of low recognition rate of interrupted-sampling and repeater jamming, a method of jamming recognition based on short-time fractional Fourier transform(STFRFT)was proposed. In order to reduce the complexity of feature extraction in time-frequency domain, the time-frequency domain was reduced to fractional Fourier transform(FRFT)domain and time domain based on maximum search and slice after STFRFT was used to interrupted-sampling and repeater jamming. Feature parameters contained the number of spectrum peaks in FRFT domain, and the number of pulses in time domain after dimensionality reduction. For three typical kinds of interrupted-sampling and repeater jamming, simulation result shows that a satisfactory recognition effect is achieved when the jamming-to noise ratio is greater than -4 dB.
- Publication
Journal of Data Acquisition & Processing / Shu Ju Cai Ji Yu Chu Li, 2021, Vol 36, Issue 6, p1186
- ISSN
1004-9037
- Publication type
Article
- DOI
10.16337/j.1004-9037.2021.06.012