| 摘要 |
PCT No. PCT/FI94/00230 Sec. 371 Date Dec. 4, 1995 Sec. 102(e) Date Dec. 4, 1995 PCT Filed Jun. 2, 1994 PCT Pub. No. WO94/28662 PCT Pub. Date Dec. 8, 1994The invention relates to a method for demodulating a digitally modulated signal and to a demodulator. According to the method, a signal (S) to be received is mixed essentially to quadrature related I and Q baseband signals. For improving the interference tolerance of the demodulator, for instance, differences ( alpha ) between directional angles ( beta , gamma ) of sequential shifts of a signal point on I/Q plane are measured from the baseband signals and said difference is utilized for decision-making concerning a received symbol.
|
