Memory footprint reduction for power-efficient realization of 2-D finite impulse response filters
الملخص
We have analyzed memory footprint and combinational complexity to arrive at a systematic design strategy to derive area-delay-power-efficient architectures for two-dimensional (2-D) finite impulse response (FIR) filter. We have presented novel block-based structures for separable and non-separable filters with less memory footprint by memory sharing and memory-reuse along with appropriate scheduling of computations and design of storage architecture. The proposed structures involve L times less storage per output (SPO), and nearly L times less energy consumption per output (EPO) compared with the existing structures, where L is the input block-size. They involve L times more arithmetic resources than the best of the corresponding existing structures, and produce L times more throughput with less memory band-width (MBW) than others. We have also proposed separate generic structures for separable and non-separable filter-banks, and a unified structure of filter-bank constituting symmetric and general filters. The proposed unified structure for 6 parallel filters involves nearly 3.6L times more multipliers, 3L times more adders, (N 2 -N+2) less registers than similar existing unified structure, and computes 6L times more filter outputs per cycle with 6L times less MBW than the existing design, where N is FIR filter size in each dimension. ASIC synthesis result shows that for filter size (4 × 4), input-block size L=4, and image-size (512 × 512), proposed block-based non-separable and generic non-separable structures, respectively, involve 5.95 times and 11.25 times less area-delay-product (ADP), and 5.81 times and 15.63 times less EPO than the corresponding existing structures. The proposed unified structure involves 4.64 times less ADP and 9.78 times less EPO than the corresponding existing structure.
المجموعات
- علوم وهندسة الحاسب [2262 items ]
وثائق ذات صلة
عرض الوثائق المتصلة بواسطة: العنوان، المؤلف، المنشئ والموضوع.
-
Active Power Filter
Massoud, Ahmed M.; Ahmed, Shehab; AbdelKhalik, Ayman S. ( John Wiley & Sons, Ltd , 2014 , Book chapter)The proliferation of power electronics-based devices and equipment has significantly affected the power quality of the grid, which changes its sinusoidal nature through adding harmonic distortion. Power electronics ... -
Selected Problems of Induction Motor Drives with Voltage Inverter and Inverter Output Filters
Abu-Rub, Haitham; Iqbal, Atif; Guziński, Jarosław ( John Wiley & Sons, Ltd , 2012 , Book chapter) -
Accurate and efficient implementation of the time–frequency matched filter
O'Toole, J.M.; Mesbah, M; Boashash, B ( Institution of Engineering and Technology , 2010 , Article)The discrete time-frequency matched filter should replicate the continuoustime-frequency matched filter, but the methods differ. To avoid aliasing, thediscrete method transforms the real-valued signal to the complex-valued ...