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Integrable Ultra-Compact, High-Resolution, Real-Time MEMS ladar for the (2005)
| Content Provider | CiteSeerX |
|---|---|
| Author | Siepmann, James P. Rybaltowski, Adam |
| Description | Laser radar (LADAR) has many advantages over other methods of target detection and analysis, both in combat and commercial applications. Because it uses a shorter wavelength than microwave radar and has significantly greater angular resolution, it is capable of a greater degree of accuracy and more precise target resolution to a level that allows for high resolution image acquisition. The development of a next generation LADAR unit that is lightweight, ultra-compact, portable, and power-efficient real-time 3D LADAR unit would be a significant advance with many potential military and civilian applications. This paper describes a novel LADAR device that would be small, compact, field practical, eye safe, and integrable into a soldier's helmet. This would be achieved by using a 2-axis MEMS (Micro-Electro-Mechanical System) scanner with an optical system that will extend the field of view (FOV). This next generation time-of-flight (TOF) LADAR design utilizes a novel angle amplification mechanism that uses a pre-compensating positive lens and a subsequent negative lens to overcome the small scanning range of MEMS mirrors where scan angles as small as 6 ˚ can be increased to over 40˚. Also, with conventional digital zoom, a portion of an image is used to create a larger but much lower resolution image, while the LADAR zoom technology discussed in this paper will have a tighter field of view for a high resolution zoom image. Other innovation is a relatively inexpensive and compact laser driver that can generate subnanosecond pulses of varying repetition frequency. Our analyses demonstrate that this portable LADAR device would work in close proximities as well as distances over 100 meters, could have a range resolution of less than a centimeter and a FOV greater than 40º, and be able to display 320x240 pixel real-time images at a frame rate of 15. Such a LADAR unit could be enhanced to also record and transmit range, intensity, and GPS/vector data to a remote computer. By using the same soldier for capturing LADAR images and data from |
| File Format | |
| Language | English |
| Publisher Date | 2005-01-01 |
| Publisher Institution | Individual Soldier,” Military Communications Conference 2005 (MILCOM 2005 |
| Access Restriction | Open |
| Subject Keyword | Compact Laser Driver Ladar Design Portable Ladar Device Transmit Range Novel Ladar Device Subnanosecond Pulse Subsequent Negative Lens Small Scanning Range Ladar Unit Resolution Image Commercial Application Mem Mirror Conventional Digital Zoom Target Detection Next Generation Time-of-flight High Resolution Image Acquisition Remote Computer Laser Radar Precise Target Resolution Repetition Frequency Close Proximity Scan Angle Frame Rate Next Generation Ladar Unit Many Advantage Significant Advance Real-time Mem Ladar 2-axis Mem Novel Angle Amplification Mechanism Ladar Image Gps Vector Data Pixel Real-time Image Range Resolution Angular Resolution Ladar Zoom Technology High Resolution Zoom Image Optical System Civilian Application Pre-compensating Positive Lens Micro-electro-mechanical System |
| Content Type | Text |
| Resource Type | Article |
