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Re: [Discuss-gnuradio] complex bandpass vs real low-pass
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From: |
Marcus D. Leech |
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Subject: |
Re: [Discuss-gnuradio] complex bandpass vs real low-pass |
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Date: |
Wed, 02 May 2012 18:04:47 -0400 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16 |
On 05/02/2012 05:59 PM, Nick Foster wrote:
Complex * complex multiplies are more computationally expensive than
complex * real. For edification and titillation you can read the
volk_32fc_x2_multiply_32fc source. There's an Orc version too which is
easier to read. The moral of the story is you should probably avoid
complex coefficients unless you know you need them.
--n
Oooh, titillation. Sign me up :-)
Yup, that makes sense.
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org