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Estudo da recepção de TV digital em função da transmissão de sinal com antena na polarização elíptica comparada com uma antena de transmissão de polarização horizontal
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrônica, 2013-06-13)
This project studies the comparison between the reception of digital TV as a function of the transmission signal with a transmitting antenna on the elliptical polarization and a transmitting antenna on the horizontal ...
Receiver-side nonlinearities mitigation using an extended iterative decision-based technique
(Elsevier Science, 2011-08)
This work presents an iterative receiver cancellation technique for mitigating the inband distortion introduced by a nonlinear wideband transmitter power amplifier (PA). The proposed decision-based technique employs a ...
Novel multilayer extreme learning machine as a massive MIMO receiver for millimeter wave communications
(IEEE, 2022)
Wireless communication systems working in millimeter-wave (mmWave) frequency bands offer higher bandwidths than traditional radio frequency schemes. This technology allows multibeam steering and data multiplexing with the ...
Design of a LNA and a Gilbert Cell Mixer MMICs with a GaAs PHEMT technology
(1999-12-01)
The design of a Gilbert Cell Mixer and a low noise amplifier (LNA), using GaAs PHEMT technology is presented. The compatibility is shown for co-integration of both block on the same chip, to form a high performance 1.9 GHz ...
Optimizing the code rate for achieving energy-efficient wireless communications
(IEEE, 2014)
Error correcting coding is a well-known technique for reducing the required signal-to-noise ratio (SNR) needed to attain a given bit error-rate. Nevertheless, this reduction comes at the cost of extra energy consumption ...
Modulação de sinal GNSS focado ao Sistema Europeu Galileo
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2019-06-17)
The Global Navigation Satellite System (GNSS) aims to determine the accurate geolocation of a receiver, using a set of signal from the satellites, which transmitted signals vary the modulation according to the constellation. ...
Using GPUs for beamforming acceleration on SAFT imaging
(2009-12-01)
SAFT techniques are based on the sequential activation, in emission and reception, of the array elements and the post-processing of all the received signals to compose the image. Thus, the image generation can be divided ...
Using GPUs for beamforming acceleration on SAFT imaging
(2009-12-01)
SAFT techniques are based on the sequential activation, in emission and reception, of the array elements and the post-processing of all the received signals to compose the image. Thus, the image generation can be divided ...