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Patent

Method and apparatus for improving the computational efficiency of a rosar-system

TLDR
In this paper, the authors used an optimising technique to determine a reference function and to achieve self-focusing using four angle-dependent ROSAR parameters, i.e., the length of the rotor blade, the circular frequency of rotor blades, the distance from the rotor rotation point to the object, and the height of rotor blade above the ground.
Abstract
The method involves using an optimising technique to determine a reference function and to achieve self-focusing using four angle-dependent ROSAR parameters, i.e. the length of the rotor blade, the circular frequency of the rotor blade, the distance from the rotor rotation point to the object and the height of the rotor blade above the ground. An Independent claim is also included for an arrangement for implementing the method.

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Citations
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Patent

System for supplying power to ROSAR transponders, including transmitting and receiving antennas for ROSAR devices

TL;DR: In this paper, wind energy is converted directly into electrical energy locally at the rotor blade tip of a helicopter rotor for supplying power to ROSAR transmitting and receiving antennas that are integrated into the tip of the helicopter rotor blade.
Patent

Method of signal treatment and processing using the ROSAR system

TL;DR: In this article, a method of signal conditioning and processing uses a ROSAR system for obtaining high-resolution elevation data using a fixed transmitting antenna, without requiring a turnstile.
Patent

Current supply system for ROSAR transponder and transmit/receive antennas for ROSAR devices

TL;DR: A ROSAR transponder power supply has a wind driven turbine, magneto hydrodynamic ion or piezo electric generator on an electronic card in a flat housing at the end of the helicopter rotor blade as discussed by the authors.
Patent

Method of signal processing according to the ROSAR system

TL;DR: In this article, a method for signal processing and signal processing after ROSAR system that exhibits a solution, such as elevation information of high resolution can be obtained with a fixed transmitter antenna without a hub.
References
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Patent

Radar system with beam splitter and synthetic stabilization

TL;DR: In this paper, a multifunction radar system with a vertical fan beam of radiant energy continuously movable in azimuth for terrain mapping with a plan position indicator-type display screen and including antenna is presented.
Patent

Radar apparatus having a synthetic aperture on the basis of rotating antennas

TL;DR: In this paper, the authors describe a ROSAR system for correction of rotor blade movements which deviate from a regular circular path, and thus for elimination of additional Doppler modulations of the received signals.