On Sun, 28 Feb 2010 00:50:07 +0000 Gordon JC Pearce <[email protected]> wrote:
> On Sun, 2010-02-28 at 01:41 +0100, [email protected] wrote: > > On Sun, Feb 28, 2010 at 12:40:00AM +0000, Gordon JC Pearce wrote: > > > > > I wanted a very simple SDR with jack inputs and outputs for a > > > demonstration I was doing. I had a look at the DSP guts of dttsp and > > > quisk, and sat down to code. > > > > Forgive my ignorance, but what is an SDR ? > > Software-Defined Radio. Basically you downmix incoming RF to the audio > range with two mixers fed 90 degrees out of phase. You can then munge > this in various different ways to tune and demodulate various different > radio signals. > > Gordon MM0YEQ > Sounds suspiciously like some form of quadrature demodulator. Rather like GEC/Sobel introduced with their 1018 TV chassis in the 1960s. Oh how we laughed ... -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song. _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
