I've copied this to David, perhaps it can give him some additional handle on
PAPR while designing his new waveform, if he's not already aware of it.
On March 5, 2014 7:32:10 AM PST, Ham Radio Java <[email protected]> wrote:
>On Sun, Mar 2, 2014 at 4:21 PM, Bruce Perens <[email protected]> wrote:
>
>>
>> I don't even know how anyone got OFDM to work with an amplifier
>designed
>> for SSB.
>
>
>I went back and read some of my notes off of g4guo's web site, and one
>of
>them was:
>
>"The waveform uses clipping to reduce the peak to mean ratio, followed
>by
>filtering. Each tone starts at a different phase offset to try to
>reduce
>the crest factor. The phase offsets were calculated using Newman Phase
>Generation."
>
>I remember looking-up Newman Phase Generation, and found mostly
>mathematics
>buried in greek and egyption symbols and promptly forgot about it. I
>did
>another search now, and found:
>
>http://www.stanford.edu/~boyd/papers/pdf/multitone_low_crest.pdf
>
>Which is actually readable by an undergraduate who hid in the back
>during
>calculus...
>Google search finds a bunch of poop:
>
>https://www.google.com/#q=newman+phase+generation+crest+factor
>
>have fun,
>steve
>
>
>------------------------------------------------------------------------
>
>------------------------------------------------------------------------------
>Subversion Kills Productivity. Get off Subversion & Make the Move to
>Perforce.
>With Perforce, you get hassle-free workflows. Merge that actually
>works.
>Faster operations. Version large binaries. Built-in WAN optimization
>and the
>freedom to use Git, Perforce or both. Make the move to Perforce.
>http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Freetel-codec2 mailing list
>[email protected]
>https://lists.sourceforge.net/lists/listinfo/freetel-codec2
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.
------------------------------------------------------------------------------
Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce.
With Perforce, you get hassle-free workflows. Merge that actually works.
Faster operations. Version large binaries. Built-in WAN optimization and the
freedom to use Git, Perforce or both. Make the move to Perforce.
http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk
_______________________________________________
Freetel-codec2 mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/freetel-codec2
