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Erschienen in:
2012 | OriginalPaper | Buchkapitel
179. Optimization of Iterations Based on Turbo Code Decoding
verfasst von : Yanping Xu
Erschienen in: Electrical, Information Engineering and Mechatronics 2011
Verlag: Springer London
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Abstract
To reduce the iterations of Turbo code decoding without degrading the quality of image, which was used as signal source of a new scheme, is presented. Because each bit of binary system takes on varying degrees of content of other systems such as decimal system in the course of data format conversion, ensuring the iterations of high-bit and giving up the low-bits can maintain the image definition as well as decrease the sum of iterations obviously. Simulations of comparing this method with some widely used normalization techniques show that the proposed approach can achieve reducing 50% sum of iterations of decoding with higher overall BER and cannot debase the figure sharpness.