Digital Signal Processing using Barker Code for Application in Laser Range Finder

Signal detection at receiving end is always difficult, when signal is corrupted by noise. Conventional digital signal processing techniques are not capable to detect the signal corrupted with noise , particularly in low power laser range finder, where the received power is appreciably reduced due to atmospheric attenuation. A new digital signal processing technique using barker code for noise corrupted signal is discussed in this paper. In this signal processing technique, Barker 13 sequence has been used for pulse compression and for detecting correlation peak. This technique has been realized and tested on FPGA and important for low level detection of laser range finder receiver design.