12 -way high accuracy sine signal generator system based on FPGA

In this paper, a 12 - way high accuracy sine signal generator system based on FPGA is designed. The DDS signal source based on FPGA can not only output 12 - way sine wave signal, but also can regulate the frequency, phase and amplitude of output waveform by STM32 main control module. In this paper, the structure, working principle and logic circuit of 12 - way high accuracy sine signal generator system are introduced in detail. Experimental results show that the system can regulate the frequency and phase of the 12 - way output waveforms, and the frequency regulation fineness of the system reach 0.01Hz within 1 kHz. In addition, the amplitude regulation function can be chosen as an additional function for the user.