| 摘要 |
In this method, filtering is done by means of low-pass filters and the desired phase increment, and thus the transmitted signal, is subsequently obtained by means of complex multiplication (delay demodulation), the method being characterised by the fact that the sampled received signal is subjected to filtering by means of a bandpass filter and that this filter has complex-valued coefficients. The method is very inexpensive and can be used, particularly, in the demodulation of UHF FM signals. <IMAGE> |
