The use of short-bispectral estimates for time-frequency analysis of radar signals
- 1 д.т.н., профессор, кафедра «Прием, передача и обработка сигналов», Национальный аэрокосмический университет им. Н.Е. Жуковского «ХАИ» (Украина)
- 2 д.т.н., профессор, кафедра «Радиоэлектронные системы», Донской государственный технический университет (г. Шахты)
- 3 к.т.н., доцент, кафедра «Радиоэлектронные системы», Донской государственный технический университет (г. Шахты)
- 4 студент, кафедра «Радиоэлектронные системы», Донской государственный технический университет (г. Шахты)
Abstract
A new approach to time-frequency analysis of radar signals received by the scattering of coherent electromagnetic waves extended object moving in the field of microwave radar. The proposed approach is based on the evolutionary sequence of short-term evaluations bispectral density, which are formed by the window, moving the registered radar signals. Rating bispectral density allows separate from transient backscatter only those frequency components which are connected phase relationships. To measure the signals corresponding to scattering by rocking the metal ball (test object) and walking pedestrian, coherent radar used in the centimeter wavelength range, operating in a continuous mode. Obtained experimentally using bispectral density estimates time-frequency distributions can be recommended as a new informative features for solving the problem of automatic radar detection of moving ground targets.
How to cite
Тоцкий А.В., Марчук В.И., Шерстобитов А.И., Тимофеев Д.В. Использование кратковременных биспектральных оценок для частотно-временного анализа радиолокационных сигналов // Успехи современной радиоэлектроники. 2013. № 5. С. 17–22.
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