A novel approach to estimation of Doppler frequencies of a time-varying communication channel
Tóm tắt
A new approach to estimation of characteristic frequencies (Doppler shifts) of periodically varying telecommunication channels is proposed. The cycles are estimated by means of performing parametric spectral analysis of the short-memory sliding window least squares estimates of channel coefficients obtained for the known, training part of the transmitted sequence. The new method offers better results than the existing approaches, both in terms of quality (better spectral resolution) and quantity (smaller estimation errors).
Từ khóa
#Frequency estimation #Communication channels #Least squares approximation #Doppler shift #Distortion #Delay effects #Intersymbol interference #Mobile communication #Recursive estimation #Computer scienceTài liệu tham khảo
niedz?wiecki, 2000, Fast algorithms for identification of rapidly fading channels, Proc 10th European Signal Processing Conference - EUSIPCO 2000 Tampere Finland
10.1016/S0165-1684(00)00041-4
10.1002/(SICI)1099-1115(199603)10:2/3<159::AID-ACS346>3.0.CO;2-M
10.1109/TASSP.1980.1163429
10.1109/TASSP.1983.1164124
10.1007/978-3-642-03882-2_377
niedz?wiecki, 2000, Identification of Time-varying Processes