Advanced receiver technology for commercial threat warning systems
نویسندگان
چکیده
Advanced threat warning technology will begin to play a more significant role for homeland defense and national security. Of particular concern are landing and take-off patterns of slow moving commercial airliners here and abroad. Recognizing this vulnerability has triggered renewed interest in high sensitivity internal gain optical detectors and two dimensional arrays. Avalanche photo-detectors are the most highly sought after low-noise, high-gain photo sensors. They are being developed for highly sensitive laser detection and ranging receiver systems in autonomous munitions and for data communications (for example) and will be the “eyes” of modern commercial threat warning systems. This paper reviews several laser detection and ranging technologies and the corresponding requirements placed on avalanche photo-detectors. Performance of commercial and experimental avalanche photo-detectors will be discussed. Recent results on large format InAlAs avalanche photo-detector arrays fabricated by the authors will also be presented. © 2004 Optical Society of America OCIS codes: (040.1240) Photodetectors; (040.3060) Infrared; (040.7190) Ultraviolet; (150.6910) Three-dimensional sensing; (230.5170) Photodiodes; (280.3640) Lidar
منابع مشابه
Real-Time Interference Detection in Tracking Loop of GPS Receiver
Global Positioning System (GPS) spoofing could pose a major threat for GPS navigation ‎systems, so the GPS users have to gain a better understanding of the broader implications of ‎GPS.‎ In this paper, a plenary anti-spoofing approach based on correlation is proposed to distinguish spoofing effects. The suggested ‎method can be easily implemented in tracking loop of GPS receiver...
متن کاملAnalysis of New Laser Warning Technologies to Propose a New Optical Subsystem
In this paper, after a brief overview on laser warning system (LWS), a new structure for an optical array that is used in its optical subsystem is introduced. According to the laser threats’ wavelengths (0.5 – 1.6 µm) and our desirable field of view (FOV), we used 6 lenses for gathering the incident radiation and then optimized the optical array. Lenses’ radius, their se...
متن کاملA Wavelet-based Spoofing Error Compensation Technique for Single Frequency GPS Stationary Receiver
Spoofing could pose a major threat to Global Positioning System (GPS) navigation, so the GPS users have to gain an in-depth understanding of GPS spoofing. Since spoofing attack can influence position results, spoof compensation is possible through reducing position deviations. In this paper, a novel processing technique is proposed and the wavelet transform is used to eliminate the impact of sp...
متن کاملDevelopment of a Peer-to-Peer Collision Warning System
Traditional vehicle collision warning and avoidance systems do not perform well in the perpendicular path intersection case. One major reason is that the threat detection systems they use require line-of-sight. Recently we have designed and implemented a new low-cost collision warning system that doesn’t require line-of-sight for threat detection. The novel elements of the system include the us...
متن کاملCyber Threat Indications & Warning: Predict, Identify and Counter
Crime has typically converged with aspects of warfare. This symbiotic relationship further complicates the broad battle-space understanding for early warning vigilance or defensive and offensive maneuvers against nebulous networks and masked relationships of convenience or ideology. The asymmetric cyber domain platform as an adversary’s tool to combat a foe unconventionally in a criminal, haras...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004