Design of Digital up Converter for Solid-State Transmitters

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    Digital Up converters (DUC) are used in communication system for the baseband processing and it is implemented in solid-state transmitters. The design of DUC is the most significant block in every digital communication system. The input signal applied that has to be upsampled and mixed with the carrier signal that is generated from Direct Digital Synthesizer (DDS). In this work processing is done using filters like Cascaded Integrator Comb (CIC), Compensator-FIR (CFIR), Pulse-Shaping Finite Impulse Response (PFIR), Half Band Filters (HBF) and Finite Impulse Response (FIR) filters are being used as interpolation filters. It is also explained that HBF’s are preferable over CIC filters. This paper focuses on effective implementation of the DUC in order to reduce the resources for the optimisation of the design.

     

     


  • Keywords


    Digital Up Converter (DUC), solid-state transmitters, Direct Digital Synthesizer (DDS), Cascaded Integrator Comb (CIC), Compensator-FIR (CFIR), Pulse-Shaping Finite Impulse Response (PFIR), Half Band Filter (HBF), Finite Impulse Response (FIR).

  • References


      [1] Kumar Vijay Mishra, “Frequency Diversity Wideband Digital Receiver and Signal Processor for Solid-State Dual-Polarimetric Weather Radars,” Degree of Master of Science thesis, Colorado State University Fort Collins, Colorado, 2012.

      [2] Ravi Kishore Kodali, Seeta Rami Reddy Kondapalli and Dr. Lakshmi Boppana, “DDC and DUC Filters in SDR platforms,” Conference on Advances in Communication and Control Systems, vol. 14, pp. 203-208, 2013.

      [3] Rita Patil and G.S. Gawande, “Efficient Design of Digital Up Converter using Xilinx System Generator,” International Jounal of Engineering Research and Trechnology, vol. 3, pp. 2284-2286, May 2014.

      [4] Maruthi G.B, Saleem Malik S., S.P Prashanth Kumar and Pratap M.S, “Implementation of high performance DUC and DDC for Software Defined Radio Applications,” International Jounal of Computer Applications, vol. 110, pp. 23-25, January 2015.

      [5] Chaithra M. R. and Yashwanth N, “FIR Interpolation Filter for Multi-Standard Digital Up Converter Using FPGA,” International Journal of Science and Research, vol.4, pp. 3033-3036, May 2015.


 

View

Download

Article ID: 19466
 
DOI: 10.14419/ijet.v7i3.34.19466




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.