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Title Design of Amplitude Sampled DRFM System UsingInversion Phase Correction Method
Authors 성기민(Ki-Min Sung) ; 전영일(Young-Il Jeon) ; 홍상근(Sang-Geun Hong) ; 나인석(In-Seok Na)
DOI https://doi.org/10.5573/ieie.2019.56.9.102
Page pp.102-107
ISSN 2287-5026
Keywords Digital Radio Frequency Memory(DRFM), Amplitude sampled, Recirculation, Phase correction
Abstract In this paper, we propose DRFM(Digital Radio Frequency Memory) system structure and magnitude inversion phase correction method that can do signal recirculation without discontinuity point in amplitude sampling DRFM. DRFM is a device that stores the incoming signal and transmits at the desired timing. It is important that DRFM has a function of storing the signal close to the original signal without loss of signal information and a function of recirculating the stored signal repeatedly. When performing recirculation, it is a key function of performing recirculation so that discontinuity of output signal does not occur. In the case of the phase sampling method, when the recirculation is performed, the discontinuity of the signal does not occur but the signal magnitude information loss occurs. On the other hand, the amplitude sampling method has no loss of signal magnitude information, but a discontinuity occurs in the output signal during recirculation. In order to overcome this drawback, DRFM model applying reversed magnitude phase correction technique was verified by Matlab Simulation.