Signal transmitting and receiving system and method thereof

Abstract

A signal transmitting and receiving system and a method thereof are provided in this disclosure. The system includes: a transmitter circuit configured to generate a trigger signal at a trigger moment based on a first clock signal and transmit a detection signal at a transmitting time point; and a receiver circuit configured to receive an echo signal generated by reflection of the detection signal by a target object, and receive the trigger signal based on a second clock signal and enable a first receiving channel at an initial start time point, where the first receiving channel takes the initial start time point as a time origin and senses a return time point of receiving the echo signal: determining a first calculation start point of the first receiving channel, and determining a target time difference between the return time point sensed by the first receiving channel and the transmitting time point based on the first calculation start point, where a first delay of the initial start time point relative to the trigger time point includes an unpredictable jitter delay. Based on the signal transmitting and receiving system and the method thereof of this disclosure, a problem of a jitter of a scanning start point when a receiving system and a transmitting system are clocked asynchronously can be solved, and it is possible to accumulate scanning data in multiple scans in a chip, thereby further increasing a signal-to-noise ratio and improving a ranging capability and application scenarios of a receiving chip.

Dependencies are inferred from the claim text.