CPLD-based system for the quadrature digital upconverter

This paper addresses an issue of proper parameter selection for a fast DCT-based image filtering in non-overlapping or partially overlapping blocks. Images processed with different parameter sets are compared to each other for a set of test images in terms of standard criteria (output MSE) and visual quality measures (PSNR-HVS-M and MSSIM). Comparison to other fast filters is done as well. Advantages of the proposed methods for fast denoising are demonstrated. In this paper CPLD-based realization of a radio technical system meant for the quadrature digital up converter control being used in the communication systems of special purpose.