| 摘要 |
The method involves reception of signals d(t) by at least two sensors (Cn). The signals are transformed to baseband and sampled at a multiple of the symbol frequency, before low-pass filtering. To reduce the number of filter coefficients, synchronisation is achieved to estimate the number of paths of the signal, the relative delays and powers and the frequency shift between transmission and reception of the signal for compensation. A number of paths are selected using these criteria and are spatially processed by filters (Wk). Their output is subject to temporal processing by filters (HT,HR) with periodic recalculation of the coefficients to minimise error, e(t), between the receiver output z(t) and the received signal. |
