Davis Logic V2: A Fixed-Point First-Order DC Blocking Filter Implementation

Module 109 from the Davis Logic V2 project provides a zero-heap, real-time First-Order DC Blocking Filter designed to eliminate low-frequency drift from streaming data. The filter uses a Q16.16 fractional layout and 64-bit integer arithmetic to prevent quantization errors. Jamie Davis authored this 3.4 KB text file, last updated on 2026-05 31 under a CC BY 4.0 license.

Use Cases

• Remove ADC leakage and thermal drift artifacts from telemetry data based on the filter's DC blocking capability.
• Implement a memory-efficient, branchless signal filter for embedded systems based on the described zero-heap and zero-copy architecture.
• Study fixed-point arithmetic implementations for recursive IIR filters based on the Q16.16 fractional layout and saturation safety mechanisms.

Strengths

• The implementation uses 0 bytes of heap memory, bounded strictly within localized static registers.
• Arithmetic operations use 64-bit integer registers before downshifting to maintain Q16.16 fractional integrity.
• Feedback paths employ rigid 32-bit hardware-level saturation boundaries to prevent integer wrap-around errors.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is very small at 3.4 KB, indicating it is likely a code implementation rather than a large data corpus.

Provenance

Source

Jamie Davis (Independent Systems Architect)

Collection Method

Likely a software implementation or architectural specification.

Time Range

null

Freshness

Last updated 2026-05-31 18:52:12; freshness should be verified.

Geography

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