I am working on FFT IP CORE 5.0 in VHDL IN Radix 2 burst mode. Can in possible to got o/p in polar( directly magnitude and phase)in place of rectangular(real and imaginary). Can it possible in any other FFT Core?

wanky hanky wrote: > what is the question? Sir I want FFT CORE O/P in magnitude and angle not in form a + bj( not in real and imaginary). As when we compute magnitude from this(sqrt(a*a+b*b)) and phase( taninv(b/a)) a lot of computation done in VHDL. I want to avoid all these computation.

The keyword here is "CORDIC". It exactly does what you require.

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Edited by User

P. K. wrote: > The keyword here is "CORDIC". It exactly does what you require. Sir Actually I want directly o/p of FFT in polar form. I know CORDIC core given in VHDL and we can get sin,cos etc angle in cordic.

varun maheshwari wrote: > we can get sin,cos etc angle in cordic Yes, thats one possible mode of a CORDIC. However, Output would be phase/angle, if used in phase/angle mode.

P. K. wrote: > varun maheshwari wrote: >> we can get sin,cos etc angle in cordic > > Yes, thats one possible mode of a CORDIC. > > However, Output would be phase/angle, if used in phase/angle mode. Can it possible to use phase/angle mode in FFT CORE 5.0. If possible how we can use the same.