Recent content by SvetaP

Instead of using LPF in the end of lock in , i used averaging as perfect LPF. explanation of simulation and results attached.

Hi, I wrote a simulation of lock in amplifier using Matlab and now i want to test it for different SNR. I added to the signal white gaussian noise. In all the spec that i read, always written that the lock in amplifier can handle -100dB of noise. When I add a noise of SNR=-30dB the lock in...