Nokia Corporation

Yuhuan Xu

Martin Kosakowski

Edmund Coersmeier

Joni Jantunen

Marc Hoffmann

Ludwig Schwoerer

Stefan Mende

The present invention disclosed a method for operating a software radio receiver. Said method comprises receiving a radio signal, determining a signal quality of said radio signal, selecting a suitable algorithm for a function in the receiver in accordance with said determined signal quality and applying said selected algorithm to the radio signal.

Method for operating a software radio receiver and software radio receiver

The present invention relates to a method and apparatus for implementing a discrete Fourier transformation (DFT) of a predetermined vector size, wherein at least one enhanced DFT module is provided by using at least one type of DFT module including multiplication by first and second types of twiddle factors in respective different multiplication stages separated by an intermediate integration stage, and generating the enhanced DFT module by combining the at least one type of DFT module with a recursive stage configured to multiply by a third type of twiddle factor and to selectively switch between a bypass function and a butterfly function in said recursive stage. Thereby, an implementation of non 2-radix Fourier transformation can be achieved with moderate hardware complexity.

Optimized multi-mode DFT implementation

A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector includes a Digital Radio Mondiale (DRM) digital broadcasting system receiver having an analog front-end and a digital base-band; wherein with the analog front-end DRM receiver the radio signal from lightning can be detected when a DRM receiver application and a lightning detection application operate in the same AM band application engine.

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The Hague, Netherlands

Yuhuan Xu