نتایج جستجو برای: military radar

تعداد نتایج: 79935  

2000

The case study evidence presented in Chapters Three through Five of this report suggests that, in the critical area of radar-related microwave and millimeter-wave technologies, the dual-use promise of CMI and related acquisition reform measures is real. The technological breadth and depth necessary to support a comprehensive CMI strategy appears to be emerging, and there is some evidence to sug...

2011
P. Suresh T. Thayaparan K. Venkataramaniah

High-range resolution inverse synthetic aperture radar (ISAR) imaging is a promising tool for non-cooperative target identification and has attracted wide interest within the scientific and military communities. Most of the existing ISAR algorithms are based on the Fourier transform. However, for long coherent integration time or for fast maneuvering targets, simple Fourier processing without c...

2003
Logan Scott

Logan Scott is a consultant specializing in radio frequency signal processing and waveform design for communications, navigation, radar, and emitter location. He has more than 24 years of military GPS systems engineering experience. As a senior member of the technical staff at Texas Instruments, he pioneered approaches for building high-performance, jammingresistant digital receivers using larg...

2016
Young Joon Yoo Changhyun Yi Ji Sub Hwang Young Ju Kim Sang Yoon Park Ki Won Kim Joo Yull Rhee YoungPak Lee

We realized the tunable metamaterial hyper-transmitter in the microwave range utilizing simple planar meta-structure. The single-layer metamaterial hyper-transmitter shows that the transmission peak occurs at 14 GHz. In case of the dual-layer one, it is possible to control the transmission peak from 5 to 10 GHz. Moreover, all the transmission peaks reveal transmission over 100%. We experimental...

2003
Ronald N. Kostoff

A revolutionary approach to identifying pervasive thrust areas (and their relationships) in large textual databases was applied to a compendium of assessments of applied research areas in the Former Soviet Union (FSU) generated by the Foreign Applied Sciences Assessment Center (FASAC). Related thrust areas were combined to yield the following major thrust groupings: IONOSPHERIC HEATING/ MODIFIC...

Journal: :International journal of radiation biology 2015
Sarika Singh Kumar Vyonkesh Mani Neeru Kapoor

OBJECTIVE To delineate the effect of chronic electromagnetic field (EMF) exposure from radar on plasma melatonin and serotonin levels in occupationally exposed military personnel. SUBJECTS AND METHODS A total of 166 male military personnel participated in the study out of which only 155 joined for blood draw. They were divided into three sets: Control group (n = 68), exposure group I (n = 40)...

2005
Ryan Kenny

R and sonar applications are signalprocessing intensive and heavily rely on the efficient implementation of such digital signal-processing (DSP) algorithms as filtering, transforms and modulation. In past systems, conventional digital signal processors were used to perform many of these algorithms. However, field-programmable gate arrays (FPGAs) deliver an order of magnitude higher performance ...

2004
Su May Hsu Steve Crooks

There have been several examples in which both Synthetic Aperture Radar (SAR) and Hyperspectral Imaging (HSI) systems collected data in support of military operations (SMO). FOPEN (Foliage Penetration) radar has been used to penetrate tree canopies in order to detect objects. On the other hand, spectral differences between targets and backgrounds are used in HSI systems. Both SAR and HSI system...

2008
Florent Jangal Florent Mandereau

Maritime surveillance of the Exclusive Economic Zone (EEZ) is a present military and civilian challenge. The High Frequency Surface Wave Radar, as its coverage range is not limited by the radio horizon, is well-suited to fulfil this task. HFSWRs are based on the ability of HF waves (3 MHz to 30 MHz) to propagate along the earth curvature: it is possible to detect targets up to few hundred kilom...

1960
R D GABOVICH

This is a new, revised and enlarged edition of Major Caldwell's well-known book on Military Hygiene. It gives a good account of those principles of sanitation which most nearly affect the soldier in his eveiy-day life, whether at home, abroad or in the field. Though primarily written for medical officers of his own Corps it is also hoped that it will be useful to officers of other branches of t...

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