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Re: [Discuss-gnuradio] Frequency resolution of CORDIC algorithm
From: |
Trond Danielsen |
Subject: |
Re: [Discuss-gnuradio] Frequency resolution of CORDIC algorithm |
Date: |
Thu, 28 Jun 2007 19:33:24 +0200 |
2007/6/28, Johnathan Corgan <address@hidden>:
> Thus, for DC, the phase increment value is zero, for 0.0149 Hz, it is 1,
for 0.0298 Hz, it is 2, all the way up to 32 MHz, where it is pow(2,
31). You can also tune negative frequencies, where -1 creates -0.0149
Hz, etc.
There is one more thing that I just can not figure out. The largest
angular rotation that can be performed by the CORDIC is +/- pi/2,
which means that is takes four cycles to rotate the vector all the way
around. How come the largest frequency that can be generated be 32
MHz.
Thanks in advance
Regards,
--
Trond Danielsen