I want implementing in FPGA some algorythm which will measure input frequencies near 50Hz. I need robust solution, not only counter and zero crosing method.
I read topic
system design using cyclone II
I like this metod but I am worry to make low pass filter at this low frequency. I appreciate some idea from any DSP Guru, because I am new in FPGA and DPS design and I haven't enough experience with digital filtration. I'd heard that it is possible to create. I won't waste time by this trying if it is blind way.
I think also about dq0 or park transform but I haven't matlab to try modeling this solution.
I appreciate any advice. thank's