On Wed, Jan 7, 2009 at 11:03 AM, Sebastiaan Heunis <[email protected]> wrote:
> Regarding the halfband filter. I'm in the process of investigating > ways of improving the response of the CIC or whichever technique I > implement in the end. I've tried a 4 stage CIC with compensator as > well as an 8 stage one. I get a nice flat passband in the end, but my > supervisor wants at least 40dB of SNR by the time the signal is > processed. I've only managed around 33. That's why I've been playing > around with HBF/no HBF. There is some Matlab code to calculate taps for a compensation filter in the tree, that may perhaps be of use: http://gnuradio.org/trac/browser/gnuradio/trunk/gnuradio-core/src/utils/cic_comp_taps.m -Johnathan _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
