Performance Comparison of Reflector- and Planar-Antenna Based Digital Beam-Forming SAR
نویسندگان
چکیده
منابع مشابه
Performance Comparison of Reflector- and Planar-Antenna Based Digital Beam-Forming SAR
The trend in the conception of future spaceborne radar remote sensing is clearly toward the use of digital beamforming techniques. These systems will comprise multiple digital channels, where the analog-to-digital converter is moved closer to the antenna. This dispenses the need for analog beam steering and by this the used of transmit/receive modules for phase and amplitude control. Digital be...
متن کاملPerformance Optimization of the Reflector Antenna for the Digital Beam-Forming SAR System
A novel idea of a realization a Synthetic Aperture Radar (SAR) system combining a reflector antenna with a digital feed array was suggested for the first time in [1]. The new digital beam-forming (DBF) SAR architecture has better overall system performance while being of lower complexity level as compared to the planar antenna based architecture [2]. This innovative idea has driven intensive st...
متن کاملMeasurement of a Multi Feed Reflector Antenna for SAR Systems Based on Digital Beam Forming
In the last years, the Synthetic Aperture Radar (SAR) systems evolution migrates toward the use of multi-channel systems based on Digital Beam Forming (DBF) techniques [1]. This tendendy allows fulfilling stringent SAR requirements, providing high spatial resolution within a wide swath. Moreover, the combination of DBF techniques with parabolic reflector antennas merges both flexibility and hig...
متن کاملDigital Beam-forming Antenna Optimization for Reflector Based Space Debris Radar System
Ground based space debris radar system utilizing a multibeam reflector antenna and digital beam-forming techniques allows a tracking of target within a large angular segment and supports the realization of an advanced Track While Scan mode characterized by a large search volume and simultaneous high detection and capture probabilities. This paper considers the concept and the main operational p...
متن کاملDesign and Fabrication of Plasma Array Antenna with Beam Forming
In this paper, the design and implementation of plasma antenna array with beam forming is discussed. The structure consists of a circular array of plasma tube enclosed in a unipolar UHF band monopole antenna. Beam forming is possible by stimulated plasma tubes. The combination of the above antenna with plasma excitation controller makes a beam forming smart antenna. An experimental model in UHF...
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: International Journal of Antennas and Propagation
سال: 2009
ISSN: 1687-5869,1687-5877
DOI: 10.1155/2009/614931