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Design of All-digitized MQAM Modulator Based on Modern DSP Technology

Dong Mingji

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Abstract

According to the ultimate principle of the MQAM modulation, the tool of System Generator in ISE DS is used to design a multimode QAM modulator based on FPGA.After the system design schematic is given, some units are specified, including scrambler, serial to parallel, differential encoding, mapping, and shaping filter, etc.Then, the 64QAM baseband modulation and IF design are realized.The QAM modulator is ultimately implemented on the FPGA device.

About this research paper

What this paper is about

According to the ultimate principle of the MQAM modulation, the tool of System Generator in ISE DS is used to design a multimode QAM modulator based on FPGA.After the system design schematic is given, some units are specified, including scrambler, serial to parallel, differential encoding, mapping, and shaping filter, etc.Then, the 64QAM baseband modulation and IF design are realized.The QAM modulator is ultimately implemented on the FPGA device.

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Available abstract

According to the ultimate principle of the MQAM modulation, the tool of System Generator in ISE DS is used to design a multimode QAM modulator based on FPGA.After the system design schematic is given, some units are specified, including scrambler, serial to parallel, differential encoding, mapping, and shaping filter, etc.Then, the 64QAM baseband modulation and IF design are realized.The QAM modulator is ultimately implemented on the FPGA device.

Key concepts: Schematic, Computer science, Quadrature amplitude modulation, QAM, Field-programmable gate array, Modulation (music), Baseband, Digital signal processing

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