CDMA demodulator and demodulation method

摘要: A CDMA demodulator which can follow fast fading, and reduce interference components from other users in the same cell. received input spread signal is despread by an orthogonal filer (103). The provides with successive delays each of amount 1/m chip interval a spreading code, multiplies delayed signals tap coefficients, sums up products, thereby outputting signal. Pilot symbols are compared known pattern pilot absolute phase estimator/phase error compensator (107) to obtain fluctuations symbols. interpolated information symbol, symbol compensated. compensated decided decision block (108). coefficients calculated coefficient controller (110) so that mean square differences between before after kept minimum, values fed back filter.