hello friends,
i m new to GNSS and now trying to implement a fpga based GPS simulator. would you give me some implementation options about how can i implement variable doppler shifts in fpga? whether i need two seperate dds one for carrier frequency and one for code frequency, how can i vary frequency and phase cohrently for code and carrier doppler and what should be my hardware update rate ? plese give me some suggestions
i m new to GNSS and now trying to implement a fpga based GPS simulator. would you give me some implementation options about how can i implement variable doppler shifts in fpga? whether i need two seperate dds one for carrier frequency and one for code frequency, how can i vary frequency and phase cohrently for code and carrier doppler and what should be my hardware update rate ? plese give me some suggestions