Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
In the future dense 60 GHz wireless environments, co-channel interference (CCI) is a potential problem that degrades the link quality. In this paper, a genetic algorithm (GA) assisted analog adaptive array is proposed for 60 GHz indoor applications to mitigate the CCI. The GA optimizes the weights on each receiver path to attenuate CCI from different directions and improve signal-to-interference-plus-noise...
The potential of capacity enhancement with a parasitic reconfigurable aperture (RECAP) antenna is investigated through a measurement campaign in line-of-sight (LOS) and non-LOS conditions in an indoor laboratory environment. Measurements are performed using a 5×5 parasitic RECAP for a bandwidth of 70 MHz centered at 2.55 GHz. Both noise-limited as well as interference-limited cases are considered...
This paper presents a genetically evolved antijamming beamforming array. The performance of a genetic algorithm (GA) is evaluated in situ as part of a hardware-in-the-loop optimization system. The GA was able to find reasonable beamformer settings to thwart a maximum of three stationary jammers while allowing reception of a signal of interest. Although the array operates in the 2.4 GHz 802.11g band,...
The suppression of random interference nulling for uniform circular array using an improved binary coding method is investigated in this paper, which is based on Genetic Algorithm (GA) applied to smart antenna beamforming. The code lengths of the algorithm's least amplitude significant bits and least phase significant bits are analyzed, and their impacts on algorithm's performance are discussed. As...
The suppression of fixed interference for uniform circular array using an improved binary coding method is investigated in this paper, which is based on Genetic Algorithm. The code lengths of the algorithm's least amplitude significant bits and least phase significant bits are analyzed and their impacts on performance are discussed. Finally, a general selection range of parameters is given and the...
Due to the large computational load of the signal phase matching (SPM) principle for DOA estimation, a novel immune genetic algorithm (NIGA) was proposed to search the optimal solutions of the singular value decomposition based SPM direction finding algorithm (SVDSPM). The proposed algorithm used the two-individual mean information entropy for the immune selection, assigned the different weight to...
The 3dB beamwidth of the DOA estimation method based on the singular value decomposition of the signal phase matching principle (SVDSPM) was about 1/3 to 1/2 as much as that obtained by MUSIC at different SNR. However, the SVDSPM algorithm searched the optimal solutions with certain frequency, and the complexity and computational load of optimizing the variables prevented it from applications in the...
Gene expression profiles, which represent the state of a cell at a molecular level, have great potential as a medical diagnosis tool. Compared to the number of genes involved available training data sets generally have a fairly small sample size in cancer type classification. These training data limitations constitute a challenge to certain classification methodologies. The gene (feature) selection...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.