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A single chip SiGe receiver front-end at 77 GHz
A single chip SiGe receiver front-end at 77 GHz Marcus Hartmann', Christoph Wagner', Kay Seemann', Johannes Platz3, Herbert Jager3 and Robert Weigel' Abstract -- This paper shows the development and measurement of a single chip receiver front-end at 77 GHz. The front-end consists of a low-noise amplifier (LNA), an active balun, and a direct-downconverting mixer. This design shows the feasibility o
A low noise fractional-N approach with a short periodicity of the division factor sequences
A low noise fractional-N approach with a short periodicity of the division factor sequences Thomas Musch', Nils Pohl', Ilona Rolfes' and Josef Hausner2 Abstract -- High-end measurement systems often rely on frequency synthesisers with an extremely low phase noise level. A fractional-N PLL-concept with an excellent phase noise performance together with a moderate frequency resolution is presented.
Turbulence and precipitation classification based on Doppler-polarimetric radar data
Turbulence and precipitation classification based on Doppler-polarimetric radar data Yaroslav P. Ostrovsky1, 2 , Felix J. Yanovsky1,3 and Hermann Rohling2 Abstract -- This paper describes a methodology of precipitation and turbulence classification based on radar echo signal features measured by polarimetric radar. Estimation of turbulence parameters on the basis of Doppler spectrum width is used,
Suppression of noise floor and dominant reflector response in random noise radar
Suppression of noise floor and dominant reflector response in random noise radar Sune R.J. Axelsson Abstract -- Noise radar can be used in a great number of applications including SAR. The non-periodic waveform suppresses the range ambiguity and reduces the probability of intercept and interference. Due to the random waveform, a noise floor is limiting the possible side lobe suppression. In strong
Special Issue on radar systems and applications
Special Issue on radar systems and applications The first Radar patent, filed on the 0th of April 1904 at the Kaiserliches Patentamt in Berlin, is due to Christian Hülsmeyer who called his invention Telemobiloskop. Hülsmeyer was motivated by a ship accident on the river Weser near Bremen, Germany. Collision avoidance for ship traffic was an important economical factor at that time. He demonstrated
Permutation detectors under nonhomogeneous and correlated K-distributed clutter in radar applications
Permutation detectors under nonhomogeneous and correlated K-distributed clutter in radar applications José E. Gonzalez-Garcia', José L. Sanz-Gonzalez2 and Francisco Alvarez-Vaquero3 Abstract -- In this paper, we analyze the performance of some permutation tests (PTs) under a nonhomogeneous and a correlated K-distributed clutter model, and nonfluctuating and Swerling II target models. Also, we comp
Ground target tracking with adaptive monopulse radar
Ground target tracking with adaptive monopulse radar Richard Klemm', Wolfgang Koch' and Ulrich Nickel3 Abstract -- Tracking of ground moving vehicles using airborne or space-based radar is basic for producing a recognized ground picture as well as for analyzing traffic flows, identifying sources and sinks of traffic, or detecting lines of communication, e.g. The considered radar sensor is based on
Exploiting a diversity idea to get rid of secondary data: design and analysis of an adaptive detection scheme
Exploiting a diversity idea to get rid of secondary data: design and analysis of an adaptive detection scheme Francesco Bandiera', Mohammed Jahangir2 , Giuseppe Ricci' and Roberta Verrienti1 Abstract -- This paper addresses adaptive radar detection of possibly range-spread, fixed targets based upon range-compressed Synthetic Aperture Radar data. Detection of coherent target echoes embedded in Gaus
Evaluation of mutual interferences between global navigation satellite systems and air traffic control radar
Evaluation of mutual interferences between global navigation satellite systems and air traffic control radar Gaspare Galati,', Mauro Leopardi,' Cristian Auciello,' Chiara Cosenza, 2 Fabio Lo Zito' and Franco Gottifredi2 Abstract -- GNSS systems use a frequency band close to that of L-band primary surveillance radar for Air Traffic Control, i.e. 1250-1350 MHz. In order to assess the performance of
Detection of manoeuvre for the needs of estimating the target's state vector in the process of radar tracking
Detection of manoeuvre for the needs of estimating the target's state vector in the process of radar tracking Andrzej Stateczny1 and Witold Kazimierski2 Abstract -- The article presents two concepts of estimating the target's state vector in the process of radar tracking, by means of the neural filter based on GRNN network and the results of initial research on the method of manoeuvre detection fo