Q-Blood Sense: A Coherence-Based Signal Framework Conceptual Extension of Digital Lock-In Techniques for Non-Contact Blood-Related Signal Analysis

Q-Blood Sense is an exploratory engineering framework designed for the non-contact extraction of blood-related signal features using coherence-sensitive digital lock-in techniques. By treating blood as a dynamic ionic medium, the system employs extended stochastic integration to isolate weak, structured modulations from the thermal noise floor. The framework serves as a software-defined platform for investigating collective electrodynamic behaviors, with potential scalability for cellular and molecular analysis. Presented strictly as an instrumentation study; no clinical or diagnostic claims are made.