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Kuprenjuk, Victor I.
- Experience in Designing Multi-Channel Time-To- Digital Converter
Abstract Views :156 |
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Authors
Affiliations
1 Department of Medical Equipment, Central Research Institute of Robotics and Technical Cybernetics,,Saint-Petersburg, Russia Federation, Russia
1 Department of Medical Equipment, Central Research Institute of Robotics and Technical Cybernetics,,Saint-Petersburg, Russia Federation, Russia
Source
Indian Journal of Science and Technology, Vol 10, No 15 (2017), Pagination:Abstract
Objectives: The article presents the results of the development of multi-channel timeslot measurement system for laser radar for space application. Methods: FPGA Spartan-6 system (Xilinx, USA) was used for the development of our system. Vernier method was applied for timeslot measurement that enabled to obtain high accuracy of the results without using high-frequency signals. Findings: The result of our work was the development of time-to-digital converters (TDC) with extremely low sensitivity to temperature changes. At the same time our TDC was a complete digital device and had lower sensitivity to electromagnetic interference and noise in the supply chain. The results of this development could be interesting to a wide range of specialists focusing on the development of digital systems for both ground and space application. Improvements: A 64-channel TDC has been developed. Due to the self-measurement of characteristics in real time the developed TDC does not require additional correction and adjustment before use.Keywords
Programmable Logic Device (PLD), Time-to-Digital Converters (TDC).Full Text
- Experimental Study of the Hybrid Laser Radar
Abstract Views :166 |
PDF Views:0
Authors
Affiliations
1 Department of Medical Equipment, Central Research Institute of Robotics and Technical Cybernetics, Saint-Petersburg, RU
1 Department of Medical Equipment, Central Research Institute of Robotics and Technical Cybernetics, Saint-Petersburg, RU
Source
Indian Journal of Science and Technology, Vol 10, No 15 (2017), Pagination:Abstract
Objectives: The aim of this work was to perform experimental studies of hybrid laser radar as an intermediate option between the classical scanning pulsed laser radar and a system built in accordance with a 3D-Flash LADAR technology. Methods: The studies were performed on the ground optical track using modern equipment for the registration of measurement results. Modern methods of mathematical modeling were applied for data processing. Findings: Hybrid laser radar provided location frame frequency significantly greater than the frequency of the classical pulse radar, without the use of a matrix photodetector required for 3D-Flash LADAR. Frame frequency of 28 frames per second was obtained in the experimental settings with the view field of 20×20°. A signal/noise ratio was also determined imitating maximal operating range of 2 km on the ground track or of 5 km in space. Improvements: Hybrid laser radar can be used in robotic systems as a 3D technical vision system.Keywords
3D-Flash LADAR Systems, 3D Images, Hybrid LIDAR, Scanning Systems, Time of Flight.Full Text