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Altera_Forum's avatar
Altera_Forum
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15 years ago

Absolute Value and Square Root implementations in fixed point

Hi, I know that there exists a MegaFunction for absolute value in floating point. But I am looking for an implementation to get the absolute value/modulus in fixed point. Another implement...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Basically what I am implementing is: a signal is generated (for example, a sine wave) and its modulus (magnitude) is taken as the input to a LUT (RAM). The output of the LUT is then multiplied by the original signal.

so i am looking for a modulus/absolute value implementation (for fpga) to get the magnitude of the signal (in fixed point). I searched google for it and didn't get decent results.

Some more help with this will be really appreciated.