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http://dx.doi.org/10.5515/KJKIEES.2009.20.1.052

Receiver Gain of Active Phased Array Radar-Dependence on ADC Characteristic  

Kim, Tae-Hwan (HW Team, Samsung Thales)
Choi, Beyung-Gwan (Agency for Depense Development)
Lee, Hee-Young (Agency for Depense Development)
Cho, Choon-Sik (Department of Information of Telecommunication Engineering, Korea Aerospace University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.20, no.1, 2009 , pp. 52-59 More about this Journal
Abstract
In modern radars, dynamic range requirements far severed due to high CNR(Clutter-to-Noise Ratio) environment operation scenario. ADC spurious signal restricted the required dynamic range. In this paper, receiver gain of active phased array radar dependent on ADC nonlinear characteristic was analyzed. Within limited scope of ADC SFDR which blocks required system dynamic range, ADC dynamic range reaches trade-off with ADC SNR loss. Comparing antenna stage output noise voltage to that of ADC input, receiver gain was mathematically analyzed. Finally the whole contents were explained from the application example.
Keywords
Active Phased Array Radar; ADC; SFDR; Gain;
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