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.
A method to generate a monocycle UWB and doublet based on polarization modulation is proposed. Two Gaussian pulses with opposite polarity are phase-modulated to the orthogonal optical carriers with the polarization modulator (PolM). Then an appropriate group delay is introduced by polarization maintaining fiber (PMF), and a monocycle UWB is generated. The polarity of the generated monocycle UWB can...
Multiaxis gimbal configurations are commonly used in the line of sight stabilization systems for airborne remote sensing. Although these configurations are cost-effective, system performances deteriorate in the case of large payload, due to nonlinear friction and bandwidth limit of the servo loops. In this paper, a novel maglev dual-stage inertially stabilized platform is described, which encompasses...
A noval load distribution mechanism for multipath transmission to improve user experience in overlay network has been put forward. For audio service, users are sensitive to the time delay between end to end, but time delay plays a negative role in the mechanism of QoS. So it is built the model as inverse function of time delay. For video service, the time delay and bandwidth are the main factors that...
Multipath transmission is the important way to increase the efficiency and reliability of network transmission. Along with the development of overlay network, multi-homed host et al, multipath transmission control becomes the hot spot of network transmission technology research gradually. As the base of path choice and switching in multipath transmission, real-time evaluation of path QoS is a key...
The resolution is an important concept in radar. Based on the mathematic model of high resolution range profile (HRRP), this paper investigates the resolution of HRRP for two ideal point targets. Theoretical analyses indicate that two ideal point targets can always be resolved in HRRP once they are separated by a distance larger than 1.7∗c/(2B), where c is the speed of light and B is the bandwidth...
HF channel sounding requires perfect autocorrelation property of the sounding sequences. Compared with other pseudonoise sounding sequences, Zadoff-Chu sequence gets great attention due to its predominant periodic autocorrelation property. In order to adapt the spectrum property of Zadoff-Chu sequence to the requirement of HF channel sounding transmitter-receiver, the Formula Direct Interpolation...
This paper firstly elaborates the video transmission quality evaluation methods, and gives an overall scheme of video transmission simulation and quality evaluation system, then based on the open-source network simulation software NS-2, realizing the the entire system, finally, simulation experiments are provided to demonstrate the feasibility of the system, the result shows that the video transmission...
Campus networkpsilas Internet accessing traffic is complicated, non-linear and periodical. Our goal is to give out a engineering approach to prediction of network traffic based time-series analysis model (EPTS) for campus exit-link. In our EPTS with rate-limiting, we configure rate limit based interface, then use time-series decomposed model, give out the linear trend component, periodical component,...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.