Time-Interleaved Digital-to-Analog Converters for UWB Signal Generation

@inproceedings{citeulike:3000192, abstract = {In this paper, a differentially encoded time-interleaved digital-to-analog converter (TIDAC) structure for ultra-wideband (UWB) signal generation is presented. We show that the output spectrum of the TIDAC is identical to the output of a DAC running at a higher sampling rate. To support the mathematical derivations, the UWB signal generator has been implemented on FPGA hardware and measurements have been taken for a sinusoidal wave, a Gaussian UWB pulse shape and for a UWB OFDM signal. The measurements show that, compared to the single-channel DAC, the mirror images around the sampling frequency can be reduced by about 30 dB and the analog interpolation filter design is simplified.}, author = {Krall, C. and Vogel, C. and Witrisal, K. }, booktitle = {Ultra-Wideband, 2007. ICUWB 2007. IEEE International Conference on}, citeulike-article-id = {3000192}, doi = {http://dx.doi.org/10.1109/ICUWB.2007.4380971}, journal = {Ultra-Wideband, 2007. ICUWB 2007. IEEE International Conference on}, keywords = {converter, dac, digital-to-analog, generator, signal, time-interleaved, uwb}, pages = {366--371}, posted-at = {2008-07-14 21:12:03}, priority = {5}, title = {Time-Interleaved Digital-to-Analog Converters for UWB Signal Generation}, url = {http://dx.doi.org/10.1109/ICUWB.2007.4380971}, year = {2007} }

TY - CONF ID - citeulike:3000192 L3 - citeulike-article-id:3000192 TI - Time-Interleaved Digital-to-Analog Converters for UWB Signal Generation T2 - Ultra-Wideband, 2007. ICUWB 2007. IEEE International Conference on JF - Ultra-Wideband, 2007. ICUWB 2007. IEEE International Conference on SP - 366 EP - 371 N2 - In this paper, a differentially encoded time-interleaved digital-to-analog converter (TIDAC) structure for ultra-wideband (UWB) signal generation is presented. We show that the output spectrum of the TIDAC is identical to the output of a DAC running at a higher sampling rate. To support the mathematical derivations, the UWB signal generator has been implemented on FPGA hardware and measurements have been taken for a sinusoidal wave, a Gaussian UWB pulse shape and for a UWB OFDM signal. The measurements show that, compared to the single-channel DAC, the mirror images around the sampling frequency can be reduced by about 30 dB and the analog interpolation filter design is simplified. KW - converter KW - dac KW - digital-to-analog KW - generator KW - signal KW - time-interleaved KW - uwb AU - Krall, C AU - Vogel, C AU - Witrisal, K PY - 2007/// UR - http://dx.doi.org/10.1109/ICUWB.2007.4380971 ER -