The parafoil is an aerodynamic decelerator that uses the concept of parachute and airfoil aerodynamics. The device has been used as a parachute for high-precision delivering of payload (military and civilian), to recover sounding rockets, for various tethered applications (to carry instrumentation for weather survey, air pollution measurements, radar tracking systems), and as recreational parac...

against the range-dependent accuracy of the tracking radar measurements including range, elevation and bearing angles, a new hybrid adaptive kalman filter is proposed to enhance the performance of the radar aided strapdown inertial navigation system (ins/radar). this filter involves the concept of residual-based adaptive estimation and adaptive fading kalman filter and tunes dynamically the fil...

radar transmitters emit high-power radiofrequency radiation by creation of a high-voltage and high-frequency alternating electrical current.health effects of occupational exposure to military radar were investigated. visual reaction time was recorded with a simple blind computer-assisted-visual reaction time test. to assess the short-term memory, modified wechsler memory scale test was performe...

i Abstract A general polarimetric radar emulator is developed based on rigorous scattering calculations using the T-matrix method for reflectivity, differential reflectivity, specific differential phase, and co-polar cross-correlation coefficient. A continuous melting process accounts for the entire spectrum of varying density and dielectric constants. This emulator is able to simulate polarime...

In order to simulate realistic traffic scenarios, a radar target simulator must be able generate multiple targets with different directions of arrival. The presented concept is an arbitrary amount individual arrival for the under test. By measuring channel, novel approach enables simulators arrival, while minimizing required hardware. optimum setup derived radars uniform linear receive antenna ...