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- 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
-
- 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
-