Talks and Poster Presentations (with Proceedings-Entry):
O. Albert, C. Mecklenbräuker:
"An 8-Bit Programmable Fine Delay Circuit with Step Size 65ps for an Ultrawideband Pulse Position Modulation Testbed";
Talk: EUSIPCO European Signal Processing Conference,
Poznan, Poland (invited);
- 09-07-2007; in: "Proceedings of 15th European Signal Processing Conference",
This contribution discusses the design of a programmable delay shifter for an ultrawideband (UWB) pulse position modulation (PPM) testbed. PPM was selected because of its low duty cycle which translates to high power efficiency. The receiver synchronisation subsystem uses a digitally controlled delay shifter which is implemented in two parts: a coarse and a fine shifter. The resulting delay shift circuit is controlled by
an 8-bit word and is designed to realise the delays with a granularity of 65.1 ps. The proposed combination of the delay step and fine delay components is a viable solution and the power consumption is comparable to a DDS solution. controller.
Measurement results obtained from the testbed are discussed and compared to simulations in Matlab.
uwb, ppm, impulse radio
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.