On-the-fly conversion of redundant into conventional representations
IEEE Transactions on Computers
Adaptive system identification and signal processing algorithms
Adaptive system identification and signal processing algorithms
Digital signal processing (3rd ed.): principles, algorithms, and applications
Digital signal processing (3rd ed.): principles, algorithms, and applications
Statistical Digital Signal Processing and Modeling
Statistical Digital Signal Processing and Modeling
A FPGA-based Library for On-Line Signal Processing
Journal of VLSI Signal Processing Systems
FPGA implementation of real-time digital controllers using on-line arithmetic
FPL '97 Proceedings of the 7th International Workshop on Field-Programmable Logic and Applications
Online arithmetic algorithms for efficient implementation
Online arithmetic algorithms for efficient implementation
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The use of online arithmetic was often proposed for hardware implementations of complex digital-signal processing (DSP) algorithms. However, several important issues in the design process of such algorithms using online arithmetic are rarely discussed in the literature. This paper presents these issues and provides a methodology to analyze the behavior of networks of online arithmetic modules performing serial computation over fixed-point numbers. The methodology is presented, applied in several examples, and finally used to design an efficient field programmable gate arrays implementation of the Levinson-Durbin algorithm in an application of the Yule-Walker power spectrum estimation. The methodology can be applied to other algorithms as well and it simplifies the task of designing and verifying a network of online modules. The experimental results show the advantages of online arithmetic in the design of complex DSP algorithms.