The multi-beam receiver is also uniquely suited for resolving one of the nagging problems of modern radio-telescopy: screening out radio frequency interference (RFI).
Generalized UWB-ATR receiver is proposed, in which the local template waveform is computed as the average of the channel responses to nonfinite M transmitted reference pulses.
A device is designed for measuring Brewster angle.By use of geostatics and simple machanic process, the rotating speed of receiver is two times that of the sample.