Sökning: "symbol error rate"
Visar resultat 21 - 25 av 46 avhandlingar innehållade orden symbol error rate.
21. Design and analysis of estimators for multicarrier modulation and ultrasonic imaging
Sammanfattning : This thesis deals with two areas: multicarrier modulation and ultrasonic imaging. Although different in application, these fields have a lot in common. For instance, synchronization and channel estimation in communication systems correspond to time-delay estimation and system identification in ultrasonic imaging. LÄS MER
22. Study of Six-Port Modulators and Demodulators for High-Speed Data Communications
Sammanfattning : There is an increasing demand for high-speed wireless data communications to support consumers’ need for, among other things, real time streaming of high definition video and fast file transfers. One radio architecture that has a potential to meet the increasing demand for high-speed data communications is a radio technique based on the six-port architecture. LÄS MER
23. Towards the Limits of Nonlinearity Compensation for Fiber-Optic Channels
Sammanfattning : The performance of long-haul coherent optical systems is fundamentally limited by fiber nonlinearity and its interplay with chromatic dispersion and noise. Due to nonlinearity, the signal propagating through the fiber interacts with itself and with the noise generated from the inline amplifiers. LÄS MER
24. Design of multi-standard baseband processors
Sammanfattning : Efficient programmable baseband processors are important in order to enable true multi-standard radio platforms and software defined radio systems. The ever changing wireless network industry also requires flexible and versatile baseband processors to be able to adapt quickly to new and updated standards. LÄS MER
25. Constellation Shaping in Optical Communication Systems
Sammanfattning : Exploiting the full-dimensional capacity of coherent optical communication systems is needed to overcome the increasing bandwidth demands of the future Internet. To achieve capacity, both coding and shaping gains are required, and they are, in principle, independent. LÄS MER