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- Path: sparky!uunet!opl.com!hri.com!spool.mu.edu!olivea!sgigate!sgi!fido!prophet.esd.sgi.com!gints
- From: gints@prophet.esd.sgi.com (Gints Klimanis)
- Newsgroups: comp.dsp
- Subject: Re: DSP project: spectrum reversal
- Message-ID: <1k464qINNijv@fido.asd.sgi.com>
- Date: 26 Jan 93 20:15:22 GMT
- References: <1k25kgINNb73@geraldo.cc.utexas.edu> <1k28e0INNddk@fido.asd.sgi.com>
- Organization: Silicon Graphics, Inc.
- Lines: 12
- NNTP-Posting-Host: prophet.esd.sgi.com
-
- In article <1k28e0INNddk@fido.asd.sgi.com>, gints@prophet.esd.sgi.com
- (Gints Klimanis) writes:
- plenty of stuf deleted
-
- |> Changing the sign of every sample is the operation of multiplying the
- |> signal by a full amplitude sinusoid at f=fs/2. This process amplitude
- |> modulates the signal out of band such that it aliases perfectly into the
- |> base band.
-
- Ooops. Dropped a word. First sentence should begin with "Changing the
- sign of every *other* sample ...". NOW, this matches the first
- paragraph of my original post.
-