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Article #15101Is there a chip to output x, for inputs sin(x) and cos(x)?
From: meric
Date: Wed, 23 Dec 1992 01:03
Date: Wed, 23 Dec 1992 01:03
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1183 bytes
I have sin(x(t)) and cos(x(t)) and would like to solve for x(t) in hardware. I need to use both sin(x(t)) and cos(x(t)) as two inputs and x(t) is not necessarily be a periodic function. I know how to solve for x using discrete devices (differentation, multiplication, addition, integration, or multiplying with a high frequency signal, addition, PLL, etc...). I thought there might be a chip that is already doing that. So does anyone have any idea? Let's say highest frequency in x(t)'s spectrum is less than 100 kHz. I appreciate any information. Meric meric@kronos.arc.nasa.gov -- Meric meric@kronos.arc.nasa.gov
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Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!hri.com!spool.mu.edu!umn.edu!csus.edu!netcom.com!netcomsv!butch!kronos.arc.nasa.gov!usenet From: meric@ptolemy.arc.nasa.gov Newsgroups: sci.electronics Subject: Is there a chip to output x, for inputs sin(x) and cos(x)? Message-ID: <1992Dec23.010318.21089@kronos.arc.nasa.gov> Date: 23 Dec 92 01:03:18 GMT Sender: usenet@kronos.arc.nasa.gov (Will Edgington, wedgingt@ptolemy.arc.nasa.gov) Organization: NASA-Ames Research Center, Moffett Field, CA Lines: 19 Nntp-Posting-Host: sartre.arc.nasa.gov