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As part of ONR's Integrated Topside (InTop) Program, in 2014 Northrop Grumman delivered a bi-static, active, electronic scanned array (AESA) system, capable of multifunction, simultaneous transmit and receive operation. The system is wide band, transmits high power and has high receive sensitivity. Further, there are simultaneous transmit and receive modes required, in which the transmit AESA radiates...
Industrial applications of wireless sensor networks often involve radio-harsh environments. These industrial settings typically include an abundance of metallic structures which obstruct, reflect, refract and scatter signals. As a result, RF channel modeling for these environments becomes necessary and important. In this paper, a WSN testbed emulating realistic industrial environments was constructed...
It is a new experience to apply constant slip frequency scheme and constant period scheme to one frequency modulation radio altimeter for height measurement. A brief introduction of the height measurement of UAVpsila double-module altimeter is given first, and then mathematic model of the whole system is developed then. Finally, hardware-in-the-loop simulation system based on RS422 is builded, and...
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