Global Broadcast Service System _615 U.S. -

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Global Broadcast Service System U.S.

, Package of information from national and theater. It is based on the user's distribution,[link widoczny dla zalogowanych], information on the type of dynamic allocation of spectrum in order to improve resource utilization GBS. It also requests the user to organize specific information, sent into the station to broadcast. In the third phase is completed,[link widoczny dla zalogowanych], it will have the ability to automatically assign resources to assist CINC improve resource utilization. Into the station is responsible for the information sent to the GBS satellite,[link widoczny dla zalogowanych], which animate into the station (PIP) and Theater Injection Point (TIP) of two. PIP is a fixed device, which is responsible for sending management information and GBS GBS data. The end of the second phase, and every single UFO satellite coverage area has a PIP, the uplink data rates as low as 94MIoit / s. The end of the third phase, PIP uplink data rate will reach more than gigabit per second. TIP is a mobile device, its ability to combat the region's information directly to the GBS \1 Zeng r1 a JFo · 9UFO. A 0ri'c, {. ll \UFO a 8l? 2Ef hydroxyl virtual UFo a 9225WIUFO - 1072E 'Tin a second joint of bones GBS received the most toxic mining field 2GBS Xinjiang ■ King said Li Dun environment, I composition 32 \The end of the second phase to provide a minimum of 6Mbit / s upstream data rate, the end of the third stage to provide 24Mbit / s upstream data rate. Receiver unit including the receiving end, decryption equipment and receive broadcast management equipment of three parts. Among them, the receiving terminal and the satellite dish and receiving equipment, is responsible for receiving GBS broadcast signals. Both the traditional large satellite dish antennas, there are less than the length of the small antenna 50era to meet different user needs. Equipment only for the use of encryption to decrypt broadcast signals for users. Receive broadcast management equipment is responsible for the decrypted broadcast signal into a video or other formats,[link widoczny dla zalogowanych], for applications. GBS can provide information services, \The so-called \The special requirements are not met, hence the \In this way, the user first by other means of communication sent to the BMS-related information requests, and then by the BMS removed from the source to broadcast relevant information to address the needs of users. Through a combination of these two methods, the basic user information requirements can be met. But need to point out that, due to the construction of the first two stages of GBS does not take anti-blocking requirements, users of the service may also be damaged because of enemy interference. Fourth, think GBS is the United States is building one new satellite communications system, it is different from other system tactics very strong customer support capabilities and multicast capability. Tactical users can get information through portable devices, services, thus greatly improving the U.S. military's information security capabilities, so that U.S. military control GBS as an important means for the future initiative in the war. GBS system development from the way the U.S. military perspective, the commercial broadcast satellite systems use radio technology can be demonstrated to save the military to reduce funding to expedite progress. However, this strategy must also use encryption and decryption technology research, to ensure the security of information transmitted. In addition, the current U.S. system of information transmission capacity of GBS, although very strong anti-blocking capability of satellite worse. If you are interested in disturbances that may affect normal operation. Thus,[link widoczny dla zalogowanych], the U.S. military has plans to build the third phase of GBS to increase anti-blocking, anti-interference ability. Thus, interference, and interference is a military satellite communication system construction must be taken into account. APMT Port delays in export licensing issues slow the progress of the U.S. government not to approve two APMT satellite export of technical data and the entire star, APMT has begun to consider to find another contractor. Currently the two HS-based platform for a satellite 702 has progressed to the overall design review stage, if the October 15, 1998 the U.S. government has not approved the technical information sent to China and Singapore, design review can not be scheduled, Star on the construction of the payload can not be started. Approval of export licenses for the satellite itself, the time limit in February 1999. APMT has admitted that if other companies will turn to a significant loss of APMT, while Hughes will lose 1 billion dollars.

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