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Journal Achievements of Modern Radioelectronics №5 for 2015 г.
Article in number:
Prospects of application of Wigner distribution for unknown radar signals recognition
Keywords: Wigner Transform Wigner Distribution Time-Frequency Distribution (TFD) Short-time Fourier Transform (STFT) spectrogram LFM recognition radar signals
Authors:
M.V. Evsikov - Ph.D. (Eng.), Senior Research Scientist, JSC «Concern «VEGA». E-mail: mail@vega.su
Abstract:
The Wigner Distribution is attractive for recognition of unknown radar signals because of its high spectral resolution to instantaneous frequency of LFM signal. The problem of recognition of unknown radar signals may be simplified by detection of triangles in surface of Wigner Distribution. Input signal is recommended to slice in time and compute Wigner Distribution of each slice separately to reduce number of cross terms. The Wigner Distribution is recommended to compute with Short-time Fourier Transform together.
Pages: 36-42
References

 

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