Complex-Valued Adaptive Signal Processing Using Nonlinear Functions
نویسندگان
چکیده
We describe a framework based on Wirtinger calculus for adaptive signal processing that enables efficient derivation of algorithms by directly working in the complex domain and taking full advantage of the power of complex-domain nonlinear processing. We establish the basic relationships for optimization in the complex domain and the real-domain equivalences for firstand secondorder derivatives by extending the work of Brandwood and van den Bos. Examples in the derivation of firstand second-order update rules are given to demonstrate the versatility of the approach.
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عنوان ژورنال:
- EURASIP J. Adv. Sig. Proc.
دوره 2008 شماره
صفحات -
تاریخ انتشار 2008