An Optimal Beamforming Strategy for Wide-Field Surveys With Phased-Array-Fed Reflector Antennas
نویسندگان
چکیده
منابع مشابه
Phased Array Feeds for Low Noise Reflector Antennas
Phased array feeds offer the possibility of more efficient use of large radio astronomy reflector antennas by providing more closely spaced beams over a wide field of view and higher aperture efficiency in each beam than have been realized with horn feeds. Phased arrays have been used extensively in rapid scanning radars and shaped-beam satellite systems, but the array design criteria for low-n...
متن کاملcalibration of phased array of reflector antennas using leo satellites
detection of stealth targets calls for employment of high-power radars which itself relies on usage of high-gain antennas like large parabolic reflectors. in the past few years, using of an array with many small reflectors instead of a large reflector antenna has been considered. this method provides enhanced eirp by a factor of n2 where n is the number of array antennas. regarding improvement ...
متن کاملPhased array ultrasonic imaging using an improved beamforming based total focusing method for non destructive test
One of the novel ultrasonic phased array based scanning methods for ultrasonic imaging in non-destructive test is total focusing method (TFM). This method employs maximum available information of the phased array elements and leads to an improved defect detection accuracy compared to conventional scanning methods. Despite its high detection accuracy, TFM behaves weak in distinguishing the real ...
متن کاملPhased array ultrasonic imaging using an improved beamforming based total focusing method for non destructive test
One of the novel ultrasonic phased array based scanning methods for ultrasonic imaging in non-destructive test is total focusing method (TFM). This method employs maximum available information of the phased array elements and leads to an improved defect detection accuracy compared to conventional scanning methods. Despite its high detection accuracy, TFM behaves weak in distinguishing the real ...
متن کاملSystem Simulation of Array-Fed Satellite Reflector Antennas
.......................................................................................................... ............ IV Acknowledgements ................................................................................................... III
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Antennas and Propagation
سال: 2011
ISSN: 0018-926X,1558-2221
DOI: 10.1109/tap.2011.2123865