Fixed-Point DSP on SignalForge Engineering Noteshttps://blog.signal-forge.app/tags/fixed-point-dsp/Recent content in Fixed-Point DSP on SignalForge Engineering NotesHugoen-usThu, 26 Feb 2026 00:00:00 +0000Limit Cycles in IIR Filters: Hidden Instability in Fixed-Point DSP Systemshttps://blog.signal-forge.app/posts/limit-cycles-iir-filter-fixed-point/Thu, 26 Feb 2026 00:00:00 +0000https://blog.signal-forge.app/posts/limit-cycles-iir-filter-fixed-point/Limit cycles cause persistent oscillations in fixed-point IIR filters even with zero input. This article explains the numerical causes and engineering strategies for mitigation.Deploying DSP Filters in Fixed-Point Embedded Systems Without Instabilityhttps://blog.signal-forge.app/posts/deploying-dsp-filters-in-fixed-point-embedded-systems/Mon, 23 Feb 2026 00:00:00 +0000https://blog.signal-forge.app/posts/deploying-dsp-filters-in-fixed-point-embedded-systems/A complete engineering guide to deploying stable DSP filters in fixed-point embedded systems, avoiding overflow, limit cycles, and coefficient sensitivity.