PASSBAND EQUALIZATION OF MODULATED QUADRATURE-RELATED CARRIER SIGNALS

摘要

PASSBAND EQUALIZATION OF MODULATED QUADRATURE-RELATED CARRIER SIGNALS A technique is disclosed for equalizing an incoming signal including quadrature-related carrier signals by forming the product of the incoming signalat at least one prescribed time and only one real-valued coefficient associated with each time. In one embodiment of the present invention, the equalized incoming signal is demodulated into a first pair of component signals. At least one of these component signals is then used to generate each coefficient. In another embodiment of the present invention, each coefficient is generated in response to at least one of the component signals in the first pair along with asecond pair of component signals which are formed by demodulating the incoming signal. This technique can be advantageously adapted to incorporate a number of coefficient updating algorithms and is suitable for use in a number of modulation formats.