Fast FPGA-Based Multipliers by Constant for Digital Signal Processing Systems

FPGA - Based Filterbank Implementation for Parallel Digital Signal Processing

In the last decade research in filter banks and subband processing as well as multi-resolution analysis (MRA) a.k.a. wavelet transforms has occurred at a fast pace [12],[14],[6],[3]. In particular, subband processing of signals is now common in a number of applications such as audio, image, and video encoders/decoders; acoustic echo cancelers used in hands-free teleconferencing systems; and spr...

FPGA-based Implementation of Signal Processing Systems

An Assessment of the Suitability of FPGA-Based Systems for Use in Digital Signal Processing

FPGAs have been proposed as high-performance alternatives to DSP processors. This paper quantitatively compares FPGA performance against DSP processors and ASICs using actual applications and existing CAD tools and devices. Performance measures were based on actual multiplier performance with FPGAs, DSP processors and ASICs. This study demonstrates that FPGAs can provide an order of magnitude b...

Anawake: Signal-Based Power Management For Digital Signal Processing Systems

Single-chip, low-power, programmable digital signal processing systems are capable of hosting complete speech processing applications, while consuming a few milliwatts of average power. We present a power management architecture that decreases the average power consumption of these systems to 3–10 microwatts, in applications where speech signals are present with a sufficiently low duty cycle. I...

Fast FPGA-based pipelined digit-serial/parallel multipliers

In this paper fast pipelined digit-serial/parallel multipliers are proposed. The conventional digit-serial/parallel multipliers and their pipelined versions are presented. Every structure has been implemented on FPGA and the results are given. These results have been analysed and it is detected that the pipelined ones do not have the throughput improvement expected because of a logic depth incr...