FPGA implementation of a BPSK modulator with adjustable parameters
DOI:
https://doi.org/10.37537/rev.elektron.6.2.170.2022Keywords:
Phase modulation, FPGA, DAC, BPSK, PRNGAbstract
This work presents the design and implementation of a phase-modulated signal generator, which allows a widerange of variation in its transmission parameters. The implemented circuit uses a minimum amount of FPGA resources. This was possible since the developed design stores a quarter cycle of the carrier, then the control logic decides which samples to take to obtain the established frequency and number of cycles per data, allowing a great variation. The output power of the signal is also configurable. In addition, the developed system allows data to be received through an external input or generated internally through a pseudo-random number generator (PRNG). The circuit was implemented using an FPGA (Field Programmable Gate Array) and a digital-analogue converter (DAC).Downloads
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