Design of a Signal Processing System for Digital Laser Altimeter

Abstract:

Laser altimeters are used to measure the elevation and detect the topography of terrain, which have been widely applied in military and civilian field. In the course of measurement, errors will inevitably generate as a result of ground settlement, surface relief and tilt, etc. In order to reduce measurement errors, the technology of laser waveform digitalization was researched. Firstly, the principle of error generation was introduced. Secondly, the basic scheme of signal processing system for digital laser altimeter was present. System components and signal processing procedure were researched. Next, the technology of extracting echo waveform parameters was discussed. Finally the method of using digital waveform parameters to correct measurement errors was provided. The principle of target classification and identification based on echo waveform parameters was introduced also.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 592-596
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.592
• Online since: July 2013
• Authors: Yi Fei Zhang, Hui Yang
• Keywords: A/D Converter, Laser Altimeter, Signal Processing System, Waveform Digitization

References

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