DUTiX – Direct Upsampling TX - Digital Centric Radio Transmitter with Baseband-to-RF Upsampling
DUTiX is a hardware- und power-efficient transmitter architecture for modern, digital-centric radio transmitters, suitable for mobile communication, connectivity, WiFi and other radio applications. The core of the invention is a dedicated digital signal processing block which enables a direct transfer from baseband (BB) to local oscillator (LO) domain—allowing arbitrary sample ratios, and even works with a modulated LO as in polar transmitters. DUTiX is suitable for all modulation techniques and schemes, including IQ modulations as QAM and OFDM, there are no limitations for all applications. The clock domain crossing is realized in three steps. After clock domain synchronization, the baseband data is upsampled employing a novel, highly-efficient filter which combines the classical polyphase filter approach with lookup tables and a linear filter coefficient interpolation. The filter uses common FIR filter coefficients. A time control unit calculates the correct sample positions and required interpolation steps depending on the both BB and LO clocks and reliably avoids sampling errors.
Further Information: PDF
Phone: +49 (0)208/94105 10
Dipl.-Ing. Alfred Schillert
firstname.lastname@example.org | TechnologieAllianz e.V.
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....