Results 121 to 130 of about 927 (180)
Null-filling effects over measurement distances on circular Taylor patterns with optimal transition integer [Formula: see text] and with reduced inner sidelobes. [PDF]
Sci RepTorrado-Puime A +3 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Sidelobe Suppression with Orthogonal Projection for Multicarrier Systems
IEEE Transactions on Communications, 2012Sidelobe suppression, or out-of-band emission reduction, in multicarrier systems is conventionally achieved via time-domain windowing which is spectrum inefficient. Although some sidelobe cancellation and signal predistortion techniques have been proposed for spectrum shaping, they are generally not well balanced between complexity and suppression ...
Y Jay Guo, Xiaojing Huang
exaly +2 more sources
Subcarrier weighting: a method for sidelobe suppression in OFDM systems
IEEE Communications Letters, 2006In this letter, a method for sidelobe suppression in OFDM systems is proposed and investigated. The proposed method is based on the multiplication of the used subcarriers with subcarrier weights. The subcarrier weights are determined in such a way that the sidelobes of the transmission signal are minimized according to an optimization algorithm which ...
I Ćosović, M Schnell
exaly +3 more sources
Sidelobe-Suppressed Bessel Beam Using Hologram
2022 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2022We present the generation of a sidelobe suppressed Bessel beam (SBB) using a holographic technique. The peak intensity of the sidelobes of the generated SBB is about 70% less compared to a standard Bessel beam.
Jerin Geogy George +2 more
openaire +1 more source
Sidelobe suppression in corrugated-waveguide filters
Optics Letters, 1977The reflection sidelobes of a corrugated optical waveguide filter are shown to be suppressed when the corrugation depth is tapered with a function that has low, Fourier-transform sidelobes. Several specific taper functions are considered, and sidelobe levels lower than −70 dB are shown to be feasible.
P S, Cross, H, Kogelnik
openaire +2 more sources
ICAO Antenna for sidelobe suppression
2019 Conference on Microwave Techniques (COMITE), 2019The paper presents the Chu-Dunbar reflector antenna for primary surveillance radar 1.25-1.35 GHz and integrated monopulse system for secondary surveillance radar at frequency band 1.03 and 1.09 GHz. The main topic of this paper is the mechanical concept of a dipole antenna array that produces a monopulse antenna diagram at a horizontal (azimuthal ...
Vadim Zavodny +2 more
openaire +1 more source
Suppression of sidelobe scatterers in an AESA FMCW radar
2008 IEEE Radar Conference, 2008This paper describes an active electronically scanned array (AESA) FMCW radar with eight transceivers. Each transceiver has its own direct digital synthesizer (DDS) for signal generation which enables digital beam forming on transmit as well as on receive.
Rossum, W.L. van +3 more
openaire +2 more sources
A Sidelobe Suppression Technique for Millimeter Wave Beamforming
2018 24th Asia-Pacific Conference on Communications (APCC), 2018Due to the millimeter wave’s high path loss, beamforming is required to provide higher gain. Conventional beamformer is widely used for its simplicity in many other studies. However, it is vulnerable to unexpected interferences since it has high level of sidelobes.
Hyeonjin Chung +2 more
openaire +1 more source
Robust Beamforming with Sidelobe Suppression for Impulsive Signals
IEEE Signal Processing Letters, 2015Beamforming is a fundamental technique in array signal processing. Many existing approaches are based on second-order statistics. However, their performance degrades significantly due to outliers in the received signal. In this letter, we propose an outlier-resistant beamformer design criterion based on minimizing the expectation of the modulus of the ...
Xue Jiang 0001 +2 more
openaire +1 more source