Real-Time Signal Processing on Edge Devices

Edge Constraints

Field-deployed sensor systems require on-device signal processing. We implement optimized FFT and wavelet transforms on ARM Cortex-M4 microcontrollers, achieving real-time spectral analysis within tight power and memory budgets.

Optimization Strategies

Key optimizations include fixed-point arithmetic, in-place computation, and hardware-accelerated multiply-accumulate operations. These techniques reduce computation time by 4x compared to naive floating-point implementations.