Implementation of high precision laser interferometry algorithm for real-time displacement sensing using multi-core architecture

Displacement, speed, etc. measurements by using the Self-Mixing interferometric is an active area of research. Phase retrieval by using the phase unwrapping method is a standard practice in the laser sensing. The Phase Unwrapping Method mixes the knowledge carried in both the phase acquired and the principal value of the phase into an adaptive differential integration system. The method demands automated and intelligent high performance hardware architecture, due to the compact, self-aligned and cost effective nature of laser sensors. In this work, we have implemented an Improved Phase Unwrapping Method on the Multi-core system and measures the performance and power efficiency for different target technologies. The results on the multi-core system show that the Improved Phase Unwrapping Method gets 4.09 times performance improvement and consumes 2.04 times less energy than the uni-core system.