Pulse delay techniques for PPM impulse radio transmitter
Sprache des Titels:
Englisch
Original Buchtitel:
”, IEEE Conference on Ultra Wideband Systems and Technologies, (UWBST 2003)
Original Kurzfassung:
A great challenge in impulse radio pulse position modulation (PPM) is a simple time delay control for
the modulated pulses. Two transmitter prototypes for UWB pulse generation will be presented. The
first is a step recovery diode (SRD) based pulser, where the time position of the pulse is controlled by
a variable current source. The second circuit shifts the pulse in time by varying the operating point of
an avalanche transistor. The shape of the pulse equals higher derivatives of the Gaussian pulse for both
circuits in assistance with a high pass filter.
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