Vorrichtung und Verfahren zum Erzeugen einer komplexen Spektraldarstellung eines zeitdiskreten Signals

WO2004013839 A UPAB: 20040316 NOVELTY - The time discrete input signals (x(n)) are fed into a first circuit for producing a block real spectral representation (10). The output of this circuit consists of serial blocks of spectral coefficients (A). These signals are fed to a second circuit which combines at least two real spectral coefficients (12). DETAILED DESCRIPTION - The output consists of serial blocks of complex approximated spectral coefficients (B). A weighted linear combination is used, and several degrees of freedom are available for optimization of the whole system. USE - Production of spectral representation of time-discrete signal. ADVANTAGE - A good approximation to desired spectral values may be obtained