Patent ID: 6496144
Filing Date: 2002-12-17
Classification: G01S,H01Q,H04B

Abstract:
An adaptive receiver for a multi-carrier transmission system which transmits in parallel frequency-divided data provided with a known signal at a leading edge of data, comprising:an adaptive array unit including an array antenna made up of a plurality of antenna elements, demodulating means for demodulating signals of the antenna elements to demodulate multiple carrier signals on a frequency axis to form modulation signals, first combining means for combining the demodulated multiple carrier signals by multiplying the modulation signals on the frequency axis with a complex weight to obtain combined demodulation signal after an adaptive combining, and complex weight calculating means for calculating the complex weight based on the demodulation signals on the frequency axis and the combined demodulation signal after the adaptive combining; and an equalizer unit including propagation path estimating means for estimating propagation path estimation values based on the known signal provided in the modulation signals on the frequency axis, second adaptive combining means for determining a combined propagation path estimation value after an adaptive combining through a combining process executed by multiplying the propagation path estimation values calculated by the propagation path estimating means with the complex weight calculated by the complex weight calculating means, and dividing means for dividing the combined demodulation signal after the adaptive combining by the combined propagation path estimation value after the adaptive combining.