ask demodulation

[laptu]

The signal is two level ask with modulation ratio of 3:1...the signal needs to be demodulated....i am trying to do it with filter approach after geting absolute value of the signal....but not geting the proper filter response like envelope detector....is there any easier method to do the same in lanview fpga

[Henrik_Volkers]

Just made a test with the classical analog way, rectify, BP filter, comparator ....

[laptu]

thanks for the reply....i shall check the vi....but is it in FPGA....my signal is 1KHz ....is BPF going to work....let me see...