Light detection and ranging technology
OUTLINE
Introduction
LIDAR : what???
why???
how???
Ranging of LIDAR
Components
Basic principle of operation
Traditional photography Vs LIDAR
Advantages & Disadvantages of LIDAR
Application
Conclusion
References
What is lidar???
Light detection and ranging(LIDAR) is an optical Remote Sensing Technology that can measure the distance to an object or surface.

It is similar to Radar, but it incorporates laser pulses rather than radio waves.
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RADAR Radio Detection And Ranging

Radio Detection And Ranging ,in short RADAR relies on sending and receiving electromagnetic radiation, usually in the form of radio waves (see Radio) or microwaves. Electromagnetic radiation is energy that moves in waves at or near the speed of light. The characteristics of electromagnetic waves depend on their wavelength. Gamma rays and X rays have very short wavelengths.

Visible light is a tiny slice of the electromagnetic spectrum with wavelengths longer than X rays, but shorter ....etc

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RANGING & LANDING SYSTEMS


The VHF Omni-directional Radio Range is the abbreviations for which are VOR and Omni , enables a pilot to determine the direction of his aircraft from any position to or from a VOR beacon

range

VOR is a Very High Frequency (VHF) navigation aid which operates, its ground to air range is limited to line of sight reception which is typical of VHF transmission. The range achieved is dependent, therefore, on the siting of the VOR beacon with relat ....etc

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Stereoscopic Passive Millimeter-Wave Imaging and Ranging

Thomas L thi and Christian M tzler, Senior Member, IEE


Abstract

This paper presents the first stereoscopic range measurements
at a wavelength of 3.3 mmand discusses the accuracy of
this new method. The synthesis of passive millimeter-wave imaging
and stereoscopy combines the advantages of both principles, naturally
looking high-contrast images and superior poor-weather performance
(compared to visible and infrared wavelengths), as well
as the pas ....etc

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Lightning and Surge Protection Of Modern Electronic Systems

Introduction
In virtually all aspects of our modern lives, microprocessors and integrated circuits (ICs) are hard
at work processing digital data, controlling critical systems and communicating information
through ever-expanding global networks. These now common components have dramatically
lowered system costs while increasing the power and flexibility of modern electronic systems in a
manner unimaginable just a few years ago. Yet, few developers se ....etc

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Introduction :

Video-based car navigation systems are emerging as he n ext generation car navigation systems, which provide more realistic navigation services than conventional map-based car navigation systems. Fig. shows a block diagram of techniques required to make video-based navigation systems. First, object information is gathered via cameras, . Then, feature extraction is performed to obtain edge, color, object information. Extracted features contain various noises due to unknown objects such as shadow, damaged road surfa ....etc

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What is navigation? From, time immemorial human beings relied on natural signpost and the position of celestial bodies to find the desired route. As the population increase the need for better transportation increase. With the increase in automobiles came the problem of traffic congestion. This led to research in the field of navigation engineering. This brought about a wave of technological breakthroughs.

In this report I have included the major navigation systems such as GPS aided navigation system, two-dimensional vehicle tracking using v ....etc

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ABSTRACT

Light Detection and Ranging (LIDAR) have recently become the technologies of choice in mass production of Digital Elevation Models (DEMs), Digital Terrain Models (DTMs), and Triangulated Irregular Networks (TINs), referred to generically hereafter as DEMs. This paper presents lessons learned from LIDAR projects to date in various states. It addresses opportunities presented by LIDAR for generating DEMs as articulated by various user groups in the National Height Modernization Study. Finally, it summarizes actions required by th ....etc

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