The method of estimation of the chirp pulseduration at digital processing of airborne radars sounding signal
- 1 Ph.D. (Eng.), Chief of Department of Radio Electronics, Military Educational-Scientific Center of air Forces of the «Military-Air Academy named after Professor N.E. Zhukovsky and Yu. A. Gagarin» (Voronezh)
- 2 Ph.D. (Eng.), Associate Professor, Department of Radio Electronics, Military Educational-Scientific Center of air Forces of the «Military-Air Academy named after Professor N.E. Zhukovsky and Yu. A. Gagarin» (Voronezh)
Abstract
The problem of detecting small air targets such as unmanned aerial vehicle makes high demands on the parameters of a multi-beam radar receiver. These requirements derived from the need to discriminate a weak target signal in a strong ground scatter. The article proposes the methods of the requirements estimate for passband and dynamic range of the receive path.
It is shown that receive path pass bandwidth in a multi-beam radar during detection of small-size aerial target is determined by the required range resolution of the radar and must exceed the probing signal spectrum width by 30%...40%. The repetition frequency, FADC for undistorted signal transmission should exceed the analog receive path bandwidth not less than 10%...20% in order to in order to achieve the potential detection characteristics. The receive path dynamic range must reach 90dB-120dB for achievement of potential characteristics of small-size targets detection in the full range. The ADC capability required for undistorted signal transmission does not exceed NADC = 16.
How to cite
Антипенский Р.В., Катруша А.Н. Методика оценки длительности ЛЧМ-радиоимпульса при цифровой обработке зондирующего сигнала бортовых РЛС // Информационно-измерительные и управляющие системы. 2017. № 4. С. 18–24.
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