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 cognitive radio (CR) networks, control channels are needed for secondary users (SUs) to perform certain handshaking procedures to negotiate communication parameters and to exchange control messages. The process of SUs attempting to meet on a channel is known as rendezvous. Previous studies either use a dedicated control channel or adopt channel-hopping schemes to rendezvous. However, it is not...
The scale of some datasets generated by simulations on tens of thousands of cores are gigabyte or larger per output step. It is imperative that efficient coupling of these simulations and parallel visualization. Therefore, a patch-based parallel I/O strategy has been designed and implemented in JASMIN. These programs reconstructed or developed on JASMIN can write plotting data in many files. These...
The impact of projectiles perforating plastic metallic plates was studied in order to obtain deceleration characteristic of projectiles in the process. Based on cylindrical cavity-expansion theory, several new Formulas of perforation drag acceleration and dissipative energy with take into account three interconnected perforation stages were presented. Perforation experiments that have been performed...
In order to take the effective measure to jam the enemy's navigation system, GPS jamming shells, as the latest type of the jamming equipment, is widely used recently. In the process of the application of navigation interference, a number of GPS jamming shells are usually distributed to cover the target area without any vacancy, but it's a complex problem to distribute the shells to use the least quantities...
The Crane-umbrella Communication Jammer has become an important communication jamming equipment. During the interference process, the single jammer can cover a circular area and multiple jammers can be distributed to cover the target area without any vacancy, but it's a complex problem to distribute the jammers to use the least quantities of jammers, cover the maximal area and receive the signals...
This article proposes a new space time cooperative diversity scheme called full feedback-based cooperative diversity scheme (FFBCD). In contrast to the conventional adaptive space time cooperative diversity schemes which utilize the feedback from only the destination node, the new scheme utilizes the feedback from both the destination node and the cooperation node. With the feedback from the destination...
Using beam wave interaction simulator (BWIS), one module of microwave tube simulator suite (MTSS), a wideband helix TWT has been accurately simulated. The slow-wave circuit parameters are calculated by high frequency circuit simulator.
Recent advances of TWTCAD Integrated Framework, a 2D modeling and simulation code suite for traveling wave tube, will be presented. The use of the suite is more convenience, and the simulation result is more accurate. All modules of TWTCAD are improved. TWTCAD is applying and validating in microwave industry broadly.
Microwave tube simulator suite (MTSS), tools for microwave tube design, will be presented. It includes a front-end and three solvers now. All codes are finished and validation of this suite is under running.
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.