METHOD FOR TRANSFORMING A DIGITAL SIGNAL FROM THE TIME DOMAIN INTO THE FREQUENCY DOMAIN AND VICE VERSA
摘要
<p>A method for transforming a digital signal from the time domain into the frequency domain and vice versa using a transformation function comprising a transformation matrix, the digital signal comprising data symbols which are grouped into a plurality of blocks, each block comprising a predefined number of the data symbols. The method includes the process of transforming two blocks of the digital signal by one transforming element, wherein the transforming element corresponds to a block-diagonal matrix comprising two sub matrices, wherein each sub-matrix comprises the transformation matrix and the transforming element comprises a plurality of lifting stages and wherein each lifting stage comprises the processing of blocks of the digital signal by an auxiliary transformation and by a rounding unit.</p>
申请公布号
WO2005031596(A1)
申请公布日期
2005.04.07
申请号
WO2004SG00121
申请日期
2004.05.06
申请人
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH;HUANG, HAIBIN;LIN, XIAO;RAHARDJA, SUSANTO;YU, RONGSHAN