Optimal code generation and decoding method based on photon counting lidar
The invention discloses an optimal code generation and decoding method based on a photon counting lidar. The method comprises the steps that an initial particle group is randomized according to a given code length, the number of particles and an intensity range; a fitness function is designed accord...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
23.03.2018
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses an optimal code generation and decoding method based on a photon counting lidar. The method comprises the steps that an initial particle group is randomized according to a given code length, the number of particles and an intensity range; a fitness function is designed according to the requirement of the photon counting lidar on coding, and the fitness of each particle is calculated; each particle is evolved by the iterative evolutionary formula of a particle group algorithm, and the particle with the highest fitness is recorded; the evolutionary step is repeated untilthe maximum evolutionary algebra or stop criteria set in advance is met; the acquired optimal code is applied to lasing modulation; the received code is acquired through a receiving system; and a fastFourier transform algorithm is used to correlate a transmission code and the received code to acquire the target distance information. A pseudo-random sequence which satisfies the requirement of thephoton counting lidar and i |
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Bibliography: | Application Number: CN20171865174 |