Designing & Implementation of Digital Filter for Removal of Power Supply Noise
Manish Kansal1, Vijay Kumar2, Dinesh Arora3, Hardeep Singh Saini4 

1Manish Kansal, Department of Electronics & Communication Engineering, Panchkula Engineering College, Barwala Kurukshetra University, Kurukshetra, India.
2Vijay Kumar, Department of Electronics & Communication Engineering, MMEC Mullana, India.
3Dinesh Arora, Department of Electronics & Communication Engineering, SDDIET Barwala, India.
4Hardeep Singh Saini, Department of Electronics & Communication Engineering, Indo Global College, Abhipur,, India.
Manuscript received on August 22, 2011. | Revised Manuscript received on August 31, 2011. | Manuscript published on September 05, 2011. | PP: 242-246 | Volume-1 Issue-4, September 2011. | Retrieval Number: D0135081411/2011©BEIESP
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Abstract: An ECG is a simple and useful test which records the rhythm and electrical activity of the heart of the patient that suffers from any heart disease. An ECG can detect problems you may have with your heart rhythm .It can help doctors tell if you are having a heart attack or if you’ve had a heart attack in the past. Sometimes an ECG can indicate if your heart is enlarged or thickened Digital Filter Design problem involves the determination of a set of filter coefficients to meet a set design specifications. These specifications typically consist of the width of the pass band and the corresponding gain, the width of the stop band(s) and the attenuation therein; the band edge frequencies (which give an indication of the transition band) and the peak ripple tolerable in the pass band and stop band(s).There are many techniques for selecting coefficients. We can use a spreadsheet like Microsoft Excel, or there are many design packages which will do the job. I have used MATLAB for this purpose as it is the most advanced tool for DSP applications. Also it helps to verify the design and results that comes from the hardware.
Keywords: FIR, IIR, Matlab, VHDL.