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Fixed-Point Simulation in GNU Octave—Without MATLAB

AHMED SHAHEINAHMED SHAHEIN April 11, 2026

Introducing pkg-fxp: a free, open-source fi-compatible fixed-point class


Multi-Decimation Stage Filtering for Sigma Delta ADCs: Design and Optimization

AHMED SHAHEINAHMED SHAHEIN March 1, 20176 comments

A Matlab toolbox streamlines the design and optimization of multi-stage decimation filters for sigma-delta ADCs. MSD-toolbox automates stage-count and decimation-factor selection, generates Parks-McClellan equiripple FIR coefficients, and iteratively selects coefficient quantization to meet in-band noise constraints. It accepts sigma-delta bitstream stimuli for spectral and intra-stage analysis, includes cost estimation routines, and is published open-source on MathWorks with examples and a dissertation reference.


Multi-Decimation Stage Filtering for Sigma Delta ADCs: Design and Optimization

AHMED SHAHEINAHMED SHAHEIN March 1, 20176 comments

A Matlab toolbox streamlines the design and optimization of multi-stage decimation filters for sigma-delta ADCs. MSD-toolbox automates stage-count and decimation-factor selection, generates Parks-McClellan equiripple FIR coefficients, and iteratively selects coefficient quantization to meet in-band noise constraints. It accepts sigma-delta bitstream stimuli for spectral and intra-stage analysis, includes cost estimation routines, and is published open-source on MathWorks with examples and a dissertation reference.


Fixed-Point Simulation in GNU Octave—Without MATLAB

AHMED SHAHEINAHMED SHAHEIN April 11, 2026

Introducing pkg-fxp: a free, open-source fi-compatible fixed-point class