International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 66 - Number 10 |
Year of Publication: 2013 |
Authors: P Yadav, A Khare, K Parandham Gowd |
10.5120/11119-6081 |
P Yadav, A Khare, K Parandham Gowd . Design and Performance Evaluation of Semi-Adaptive 7.8-8.2 GHz Digital Band Pass Filters for SAR applications. International Journal of Computer Applications. 66, 10 ( March 2013), 14-18. DOI=10.5120/11119-6081
Technologies have advanced rapidly in the field of digital signal processing due to advances made in high speed, low cost digital integrated chips. These technologies have further stimulated ever increasing use of signal representation in digital form for purposes of transmission, measurement, control and storage. Design of digital filters especially adaptive or semi adaptive is the necessity of the hour for SAR applications. The aim of this research work is to design and performance evaluation of 7. 8 – 8. 2 GHz Bartlett, Blackman and Chebyshev digital semi adaptive filters. For this work XILINX and MATLAB softwares were used for the design. As pert of practical research work these designs were translated using FPGA hardware SPARTAN-3E kit. These were optimized, analyzed, compared and evaluated keeping the sampling frequency at 20 GHz for 64 order. These filters designed using software were tested by passing a sinusoidal test signal of 8 GHz along with noise and the filtered output signals are presented. Signal to Noise ratios were evaluated, plotted and comparative analysis carried out in this paper.