2.This paper presents an all-digital close-loop operation based on DSP circuits, which uses the two-frequency serrodyne modulation to modulate and demodulate the optic route.
4.We have 15 millionths of a second to measure the noise, run it through a little DSP processor, compute that inverse signal, and pop it out through the driver.
5.Well, to calculate this, the two images are sent to a section of the microchip called the digital signal processor, or DSP for short, where an algorithm called cross-correlation is executed.