| Paper: | ITT-L1.6 | ||
| Session: | Image Processing Applications | ||
| Time: | Thursday, May 20, 17:10 - 17:30 | ||
| Presentation: | Lecture | ||
| Topic: | Industry Technology Track: Mixed Signal Processing | ||
| Title: | A GENERALIZED ANALOG ARCHITECTURE FOR DCT, DST AND ITS INVERSE | ||
| Authors: | Ashis Kumar Mal; Indian Institute of Technology, Kharagpur | ||
| Arindam Basu; Indian Institute of Technology, Kharagpur | |||
| Abstract: | This paper describes a sampled analog architecture, for computing DCT or DST, using switched capacitor principle with capacitance switching. The input sample stream is applied to an array of capacitors and multiplied by all the DCT/DST coefficients concurrently using capacitor ratios. These capacitors are switched properly with the help of a switching matrix, to realize switched capacitor integrators for performing necessary addition/ subtraction. The architecture may also be used for computing inverse DCT and DST transforms. Proposed architecture, is simple, regular and can be used for online computations. | ||
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