Complex signal processing is not complex

@article{citeulike:2674632, abstract = {Wireless systems often make use of the quadrature relationship between pairs of signals to effectively cancel out-of-band and interfering in-band signal components. The understanding of these systems is often simplified by considering both the signals and system transfer functions as "complex" quantities. The complex approach is especially useful in highly integrated multistandard receivers where the use of narrow-band fixed-coefficient filters at the RF and high IF must be minimized. This paper first presents a tutorial review of complex signal processing for wireless applications. The review emphasizes a graphical and pictorial description rather than an equation-based approach. Next, a number of classical modulation architectures are described using this formulation. Finally, more recent developments such as complex filters, image-reject mixers, low-IF receivers, and oversampling analog-digital converters are discussed.}, author = {Martin, K. W. }, booktitle = {Circuits and Systems I: Regular Papers, IEEE Transactions on [Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on]}, citeulike-article-id = {2674632}, doi = {10.1109/TCSI.2004.834522}, journal = {Circuits and Systems I: Regular Papers, IEEE Transactions on [Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on]}, keywords = {processing, signal, tutorial}, number = {9}, pages = {1823--1836}, posted-at = {2008-04-15 19:02:54}, priority = {2}, title = {Complex signal processing is not complex}, url = {http://dx.doi.org/10.1109/TCSI.2004.834522}, volume = {51}, year = {2004} }

TY - JOUR ID - citeulike:2674632 L3 - citeulike-article-id:2674632 TI - Complex signal processing is not complex T2 - Circuits and Systems I: Regular Papers, IEEE Transactions on [Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on] JF - Circuits and Systems I: Regular Papers, IEEE Transactions on [Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on] VL - 51 IS - 9 SP - 1823 EP - 1836 N2 - Wireless systems often make use of the quadrature relationship between pairs of signals to effectively cancel out-of-band and interfering in-band signal components. The understanding of these systems is often simplified by considering both the signals and system transfer functions as "complex" quantities. The complex approach is especially useful in highly integrated multistandard receivers where the use of narrow-band fixed-coefficient filters at the RF and high IF must be minimized. This paper first presents a tutorial review of complex signal processing for wireless applications. The review emphasizes a graphical and pictorial description rather than an equation-based approach. Next, a number of classical modulation architectures are described using this formulation. Finally, more recent developments such as complex filters, image-reject mixers, low-IF receivers, and oversampling analog-digital converters are discussed. KW - processing KW - signal KW - tutorial AU - Martin, KW PY - 2004/// UR - http://dx.doi.org/10.1109/TCSI.2004.834522 ER -