Description

Wireless communication systems are spreading widely in our daily life. Interest in wideband measurements, e.g. cognitive radios and multi-band systems is rapidly rising. As a consequence, high requirements are put on the radio frequency (RF) systems performance in order to achieve the high expectations regarding speed and reliability based on today's and future applications. Signals in today's wireless systems contain high and fast dynamics in their envelope due to the use of sophisticated modulation techniques. As a result, these signals have large bandwidths and high peak-to-average power ratios. Hence, high requirements are put on both RF transmitters/receivers.
RF transmitters, mainly the power amplifiers stage, are characterized as nonlinear systems. As a result, their output spectrum spread over large bandwidth due to generation of nonlinear products, e.g. intermodulation products and harmonics. As a consequence, they are operated at low power region, inefficiently using their supplied DC energy.
RF receivers are limited in their digital and analog bandwidths due to shortage in high speed wideband analog-to-digital converters with acceptable measurement accuracy.
AcronymOZR2215
StatusActive
Effective start/end date20/08/10 → …

    Research areas

  • Automatic Measurement Systems, Nonlinear Modelling, Medical Physics, Fibre Optic, Parameter Estimation, Microwaves, Instrumentation, Underwater Acoustics, System Identification, Telecommunications, Electrical Measurements, Nonlinear Measurements, Electromagnetism

ID: 3416376