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This paper demonstrates an innovative variable fractional rate Digital Down Converter(DDC) architecture for satellite communication where the carrier frequency and output sample rate can be changed dynamically at run time. The proposed algorithm is highly modular and generic so that the DDC can decimate by any fractional ratio i.e. the ADC sampling rate may be any integer or non-integer multiple of...
This paper demonstrates the simulation and implementation of bit synchronization and viterbi equalization for Global System for Mobile communication (GSM) system on TMS320C6424 DSP. GSM makes use of Training Sequence for channel estimation and ISI (inter symbol interference) cancellation by use of viterbi equalizer. Modulated Baseband in-phase(I) and quadrature-phase(Q) signals are generated using...
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