The development of digital IIR (Infinite Impulse Response) filter is done on VIRTEX-6 FPGA using VHDL (Very High Speed Integrated Circuit Hardware Description Language) in XILINX Integrated Software Environment. IIR filter is analytically simulated by simulink environment in MATLAB. The digital data output of A/D converter is sent through IIR module in FPGA. Testing and debugging IIR module is ...

Motivated by the classical TV (total variation) restoration model, we propose a new nonlinear filter-the digital TV filter for denoising and enhancing digital images, or more generally, data living on graphs. The digital TV filter is a data dependent lowpass filter, capable of denoising data without blurring jumps or edges. In iterations, it solves a global total variational (or L(1)) optimizat...

Methods of digital signal processing in control and monitoring systems are relevant today largely replace the classic analog methods. This article discusses main methods synthesis appropriate devices, primarily filters.

This paper describes a design of digital hearing aids. This study shows that design of Infinite Impulse Response (IIR) digital filter with Teaching-learning-based-optimization (TLBO) gives good result in digital hearing aids. TLBO algorithm is used to optimize the filter coefficient of IIR filter. The error between desired magnitude response and actual magnitude response will be minimized by th...

Digital filters are commonly used as an essential element of everyday electronics such as radios, cell phones, and stereo receivers. Digital filters may be more expensive than an equivalent analog filter due to their increased complexity, but they may lead to many designs which are impractical or impossible as analog filters. Basically there are two types of digital filters, which are FIR (Fini...

Digital Signal processing ranks among the most demanding applications of digital design concepts. It is a mature technology domain wherein the demands for enhanced performance and resource utilization have risen exponentially over the years. Finite impulse response (FIR) filters are used in Digital Signal Processing applications.Accuracy in Filter Designing is based on the Multiplication and ac...

This paper studies the problem of digital signal reconstruction in the multirate framework. In contrast to the typical digital domain formulation in the current digital signal processing, we present a solution that optimizes an analog performance, via the modern sampled-data control. While the standard technique often indicates that an ideal digital low-pass filter is preferred, we show that th...

this paper presents a comparative analysis between two current control strategies, constant source power and generalized fryze current, used in active power filter (apf) applications having three different modulation methods. the hysteresis band (hb) and first-order delta-sigma modulation (dsm) as well as the second-order dsm is applied. the power section of the active power filter is viewed as...

In a conventional radar receiver errors are introduced due to mismatch between the ADCs and gain and phase mismatch in the I/Q demodulation. By performing the I/Q demodulation in the digital domain some of these errors are alleviated. In this paper several different filter structures suitable for digital I/Q demodulation are evaluated. Three different structures for such a digital down converte...

Low-Area/Power Parallel FIR Digital Filter Implementations http://cronus.uwindsor.ca/units/isplab/ISPLab.nsf/54ef3e94e5fe816e85256d6e0063d208/4b175436b2941a0e852576d30060d2 9d/$FILE/Low-area%20power%20parallel%20FIR%20digital%20filter%20implementations_VLSISP_Sept_97.pdf hardware than traditional block FIR filter implementations. Parallel processing is a powerful ... Area-efficient parallel FIR...