Wide dynamic pulse laser ranging method and system of neural network

• Main Author: HUANG TAILAI
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention provides a wide dynamic pulse laser ranging method and system of a neural network, and the method comprises the following steps: S1, collecting an echo signal after a laser radar transmits a laser signal; s2, extracting characteristic parameters of transmitted and received waveforms; s3, detecting the rising edge and the falling edge of the characteristic parameters, and if the rising edge and the falling edge are detected to be effective, indicating that the pulse detection is successful; s4, calculating the time difference of the corresponding positions of the transmitting signal seed light waveform and the echo signal waveform; and S5, obtaining the distance between the laser radar and the target by using a flight time ranging method. The method is reduced in calculation amount, high in measurement precision and high in adaptive capacity. Wide dynamic distance measurement can be realized through a single-channel ADC acquisition module. The system has few channels, simple circuit structure and