The invention discloses a distance measuring
system, which comprises an emitter, a collector and a
processing circuit, wherein the emitter and the collector are arranged along a baseline, the emittercomprises a
light source array composed of a plurality of light sources, the
light source array comprises a plurality of sub
light source arrays, the sub light source arrays are configured to be started one by one in the baseline direction to emit spot light beams, the collector comprises a
pixel array composed of a plurality of pixels, the
pixel array comprises a plurality of sub-pixel arrays, the plurality of sub-pixel arrays are configured to collect photons in a
light beam reflected back by the spot
light beam through a to-be-measured target object and form a
photon signal, the processingcircuit comprises a plurality of sub-
processing circuits, and the sub-
processing circuits are connected with the sub-pixel arrays in a one-to-one correspondence mode so as to control pixels in the sub-pixel arrays to be started, collect photons in the reflected light beams and calculate
flight time. According to the invention, the spatial resolution is improved, the problem of superpixel overlapping is solved, and the
distance measurement precision is improved; and the process cost and the complexity are effectively reduced.