Digital phase rotation of signals

Details Digital phase rotation of signals Digital phase rotation of signals

H - Electricity

03

H

343/3

H03H 17/08 (2006.01) G01S 1/00 (2006.01)

Patent

CA 1246722

DIGITAL PHASE ROTATION OF SIGNALS Abstract of the Disclosure A method of effecting phase rotation of a digital signal by applying said digital signal as partial address signals for a look-up table in a memory together with rotation control signals forming additional address signals whereby the memory output represents the phase rotated signal, characterised in that each input vector is modified so that points representing digitised input vector values plotted on a rectangular coordinate grid are transformed to lie on an alternative coordinate system and the rotated vectors are retransformed and requantised to a digital output.

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