M35 卫星通信设备 标准查询与下载

ITU-R S.1062-4 SPANISH-2007 在低于15GHz运行的卫星假设参考数字通道的允许误差性能

The fixed-satellite service (FSS) plays an important role in providing reliable international digital communications. Because of the integration with the terrestrial facilities, a satellite link should be designed to fulfil requirements that are compatible with terrestrial systems. ITU-T Recommendation G.826 specifies performance objectives for a satellite hop in the international portion of a hypothetical reference digital path (HRDP). In response to those objectives, this Recommendation gives guidance on bit error probability (BEP) or bit-error rate (BER) design masks which can fully comply with the requirements of ITU-T Recommendation G.826.

Allowable error performance for a satellite hypothetical reference digital path operating below 15 GHz

ITU-R QUESTION 217-2/4-2007 对国际民航组织(ICAO)全球导航卫星系统中无线电导航卫星业务的干扰

The ITU Radiocommunication Assembly considering a) that the types of radiation which can cause harmful interference can differ widely depending on the particular technical and operational characteristics of the services involved and the aircraft phase of flight (e.g. en route, approach); b) that GPS and GLONASS are constituent elements of the International Civil Aviation Organization’s (ICAO) Global Navigation Satellite System (GNSS); c) that other planned RNSS systems such as Galileo may request to become constituent elements of the International Civil Aviation Organization’s (ICAO) Global Navigation Satellite System (GNSS); d) that the ICAO 10th Air Navigation Conference, in 1991, adopted a future Communications Navigation Surveillance (CNS) system concept largely based on satellite services, of which the GNSS is the key navigation component; e) that standards and recommended practices (SARPs) which provide technical data for the global navigation satellite system (GNSS) operations and associated aircraft avionics equipment have been developed by ICAO; f) that from 1998 onwards the narrow-band mode of GLONASS-M operates in the band 1 597.5515-1 609.8235 MHz. After the year 2005 both the narrow-band and wideband GLONASS-M modes will operate in the band 1 592.9525-1 609.3600 MHz. ICAO is currently considering using only the narrow-band mode for the GNSS; g) that some administrations may be currently using, or may be planning to use the band allocated to RNSS for fixed service operations; h) that such fixed service operations may have the potential to cause harmful interference to GNSS operations in the band.

Interference to the radionavigation-satellite service in the ICAO global navigation satellite system

ITU-R QUESTION 109-1/4-2007 1530-1544 MHz 和1626.5-1645.5 MHz频段内移动卫星系统的全球海上遇险和安全系统要求

The ITU Radiocommunication Assembly considering a) that the requirements for the Global Maritime Distress and Safety System (GMDSS) entered into force on 1 February 1992 in accordance with the 1988 Amendments to the 1974 International Convention for the Safety of Life at Sea (SOLAS) concerning radiocommunications for the GMDSS; b) that multiple mobile-satellite systems designed for operation in the 1 530-1 544 MHz and 1 626.5-1 645.5 MHz bands are currently being developed and introduced; c) that the 1 530-1 544 MHz and 1 626.5-1 645.5 MHz bands, used for GMDSS distress and safety communications (see Table 15-2 of Appendix 15 to the Radio Regulations), are also available for other services; d) that currently the International Maritime Organization (IMO) has recognized only one provider of mobile-satellite communications (Inmarsat) for the GMDSS in these bands; e) that if multiple mobile-satellite systems operate in these bands, not all may elect to participate in the GMDSS; f) that, as a major element of the GMDSS, the satellite system provides for priority processing of distress alerts from ship earth stations to the coast earth stations; g) that coast earth stations provide for expeditious handling and delivery of distress messages to their associated rescue coordination centres; h) that, in these frequency bands, distress and safety receives the highest order of priority of communications in the maritime mobile-satellite service; j) that, in these frequency bands, any emission causing harmful interference to maritime mobile-satellite distress and safety communications is prohibited; k) that satellite systems participating in the GMDSS may provide a number of telecommunication services not associated with the GMDSS; l) that use of these bands for distress and safety purposes in the maritime mobile-satellite service is an important part of the GMDSS; m) that implementation of these telecommunication services under the GMDSS has been ongoing for some time.

Global Maritime Distress and Safety System requirements for mobile-satellite systems operating in the bands 1 530-1 544 MHz and 1 626.5-1 645.5 MHz

ITU-R QUESTION 87-4/4-2007 移动卫星通信系统的传输特性

The ITU Radiocommunication Assembly considering a) that currently the International Maritime Organization (IMO) has recognized only one provider of mobile-satellite communications (Inmarsat) for the GMDSS; b) that other organizations offer or plan to offer international or domestic mobile-satellite services; c) that modulation techniques and systems should be robust under fading and shadowing conditions; d) that the efficiency of orbit-spectrum utilization in mobile-satellite systems will be determined in part by the technical characteristics employed, such as modulation methods and parameters, impact of frequency reuse techniques or the arrangement of radio-frequency carriers.

Transmission characteristics for a mobile-satellite communication system

ITU-R S.1586-1 SPANISH-2007 由非同步卫星固定业务系统在无线电天文学站点产生的多余发射水平的计算

This Recommendation describes a method that could be used to calculate the unwanted emission levels produced by a non-GSO fixed-satellite service system on radio astronomy sites. It also contains a procedure for the calculation of the percentage of time during which a given equivalent power flux-density (epfd) is exceeded when the receiving antenna gain is assumed to be 0 dBi in the direction of the incoming interference, and a given integration time is considered.

Calculation of unwanted emission levels produced by a non-geostationary fixed-satellite service system at radio astronomy sites

ITU-R QUESTION 210-1/4-2007 1-3 GHz频段期间的移动卫星业务中与全球非同步卫星系统共同运作的移动地球站的技术特点

The ITU Radiocommunication Assembly considering a)that various technically-different global non-geostationary-satellite systems in the MSS (non-GSO MSS systems) have commenced operating around the end of the 1990s;b)that mobile earth stations are expected to operate with these global non-GSO MSS systems in various countries; c)that the identification by ITU-R of technical characteristics of mobile earth stations operating with different MSS systems would provide a common technical basis for facilitating equipment approval by various national authorities.

Technical characteristics for mobile earth stations operating with global non-geostationary-satellite systems in the mobile-satellite service in the band 1-3 GHz

ITU-R S.1782-2007 固定卫星服务系统的全球宽带互联网接入的可能性

In order to address issues raised both by the Radiocommunication Assembly and by WRC-03, a preliminary study into possibilities for providing access to the Internet at a high data-rate via satellite has been carried out. In one Annex an attempt is made

Possibilities for global broadband Internet access by fixed-satellite service systems

ITU-R S.1587-2 FRENCH-2007 船载地球站与卫星固定业务(FSS)在频段为5925-6425 MHz及14-14.5 GHz分配在卫星固定业务中的通讯的技术特性

The ITU Radiocommunication Assembly considering a) that the World Radiocommunication Conference (Geneva, 2003) (WRC-03) agreed Resolution 902 (WRC-03) concerned with earth stations on board vessels (ESVs); b) that ESVs may operate under Radio Regulations (RR) No. 4.4 in the fixed-satellite service (FSS) in part of the frequency band 5 925-6 425 MHz; c) that ESVs may operate under RR No. 4.4 in the FSS in part of the frequency band 14-14.5 GHz; d) that there is a requirement to protect existing and planned geostationary (GSO) FSS systems; e) that to ensure efficient use of the spectrum and to facilitate sharing ESVs must operate with certain constraints as called for in Resolution 902 (WRC-03).

Technical characteristics of earth stations on board vessels communicating with FSS satellites in the frequency bands 5 925-6 425 MHz and 14-14.5 GHz which are allocated to the fixed-satellite service

ITU-R SA.1810 FRENCH-2007 运行在8025-8400 MHz频段的地球勘测卫星的系统设计导则

The use of the 8 025-8 400 MHz band by Earth exploration-satellite service (EESS) satellites operated by various entities for data downlink operations is increasing and could result in harmful interference between these operators. Potential difficulties in sharing the heavily occupied 8 GHz spectrum may be avoided, if EESS satellite designers carefully select which of the mitigation methods are appropriate for the satellite’s intended operations. In addition to improving the sharing conditions for EESS satellites, many of the mitigation methods can also be beneficial in reducing or eliminating potential coordination with the extremely sensitive space research service (deep space) operating in the adjacent 8 400-8 450 MHz band. This Recommendation provides guidance in the form ofa list of possible mitigation methods, shown in recommends, for consideration to reduce the potential for interference by and to EESS satellites given the growing interest in the use of the 8 025-8 400 MHz band by the EESS.

System design guidelines for Earth exploration-satellites operating in the band 8 025-8 400 MHz

ITU-R SA.1807 SPANISH-2007 运行在18 GHz的气象卫星系统的系统特性和干扰标准

This ITU-R Recommendation presents interference criteria for meteorological satellite (MetSat) systems operating around 18 GHz and the system parameters used for its derivation. These criteria provide the basis for determining the sharing possibilities with the other allocated services.

System characteristics and interference criteria for meteorological satellite systems operating around 18 GHz

ITU-R S.1587-2 SPANISH-2007 船载地球站与卫星固定业务(FSS)在频段为5925-6425 MHz及14-14.5 GHz分配在卫星固定业务中的通讯的技术特性

The ITU Radiocommunication Assembly considering a) that the World Radiocommunication Conference (Geneva, 2003) (WRC-03) agreed Resolution 902 (WRC-03) concerned with earth stations on board vessels (ESVs); b) that ESVs may operate under Radio Regulations (RR) No. 4.4 in the fixed-satellite service (FSS) in part of the frequency band 5 925-6 425 MHz; c) that ESVs may operate under RR No. 4.4 in the FSS in part of the frequency band 14-14.5 GHz; d) that there is a requirement to protect existing and planned geostationary (GSO) FSS systems; e) that to ensure efficient use of the spectrum and to facilitate sharing ESVs must operate with certain constraints as called for in Resolution 902 (WRC-03).

Technical characteristics of earth stations on board vessels communicating with FSS satellites in the frequency bands 5 925-6 425 MHz and 14-14.5 GHz which are allocated to the fixed-satellite service

ITU-R S.1062-4-2007 运行在低于15 GHz的卫星假定参考数字路径的容许误差性能

The fixed-satellite service (FSS) plays an important role in providing reliable international digital communications. Because of the integration with the terrestrial facilities, a satellite link should be designed to fulfil requirements that are compati

Allowable error performance for a satellite hypothetical reference digital path operating below 15 GHz

ITU-R S.1713-1-2007 处于激活弧内的非对地静止高地球轨道(HEO)型卫星固定业务(FSS)卫星与地球同步卫星之间在地球表面的最小分离角的计算方法

This Recommendation provides methodologies to calculate the minimum separation angle anywhere on the Earth's surface between a high Earth orbit (HEO) satellite in its "active" arc and: all visible locations in the GSO arc; aspecific GSO satellite.

Methodology to calculate the minimum separation angle at the Earth’s surface between a non-geostationary HEO-type FSS satellite in its “active” arc and a geostationary satellite

ITU-R BT.1774-1-2007 公共预警、灾害缓解和救济使用的卫星和陆地广播基础结构

This Recommendation provides characteristics of satellite and terrestrial broadcasting systems used for disaster mitigation and relief operations. Detailed descriptions of these systems are also given in Annex 1 as guidance.

Use of satellite and terrestrial broadcast infrastructures for public warning disaster mitigation and relief

ITU-R SA.1807 FRENCH-2007 运行在18 GHz的气象卫星系统的系统特性和干扰标准

This ITU-R Recommendation presents interference criteria for meteorological satellite (MetSat) systems operating around 18 GHz and the system parameters used for its derivation. These criteria provide the basis for determining the sharing possibilities with the other allocated services.

System characteristics and interference criteria for meteorological satellite systems operating around 18 GHz

ITU-R S.1783-2007 固定卫星业务中描述高清晰应用的技术和运行特点 问题ITU-R 266/4

Sets of parameters of existing and planned networks incorporating user earth stations in high-density applications within the fixed-satellite service are provided in the form of an EXCEL database for systems employing geostationary satellites. A further

Technical and operational features characterizing high-density applications in the fixed-satellite service Question ITU-R 266/4

ITU-R REPORT SM.2092-2007 研究涉及到分配的地球探测卫星业务相邻或邻近频段主动服务的影响(被动)

The passive Earth exploration-satellite service (EESS) (passive) is focussing on the reception ofnatural emissions at much lower levels that are generally used in other radiocommunicationsservices. Therefore, sensors are generally more susceptible to interference from unwanted emissionsof active services.

Studies related to the impact of active services allocated in adjacent or nearby bands on Earth exploration-satellite service (passive)

ITU-R SA.1810-2007 运行在8025-8400 MHz频段的地球勘测卫星的系统设计导则

The use of the 8 025-8 400 MHz band by Earth exploration-satellite service (EESS) satellites operated by various entities for data downlink operations is increasing and could result in harmful interference between these operators. Potential difficulties in sharing the heavily occupied 8 GHz spectrum may be avoided, if EESS satellite designers carefully select which of the mitigation methods are appropriate for the satellite’s intended operations. In addition to improving the sharing conditions for EESS satellites, many of the mitigation methods can also be beneficial in reducing or eliminating potential coordination with the extremely sensitive space research service (deep space) operating in the adjacent 8 400-8 450 MHz band. This Recommendation provides guidance in the form ofa list of possible mitigation methods, shown in recommends, for consideration to reduce the potential for interference by and to EESS satellites given the growing interest in the use of the 8 025-8 400 MHz band by the EESS.

System design guidelines for Earth exploration-satellites operating in the band 8 025-8 400 MHz

ITU-R SA.1807-2007 运行在18 GHz的气象卫星系统的系统特性和干扰标准

This ITU-R Recommendation presents interference criteria for meteorological satellite (MetSat) systems operating around 18 GHz and the system parameters used for its derivation. These criteria provide the basis for determining the sharing possibilities with the other allocated services.

System characteristics and interference criteria for meteorological satellite systems operating around 18 GHz

ITU-R QUESTION 226-3/3-2007 卫星到卫星路径的电离层和对流层特征

The ITU Radiocommunication Assembly considering a)that techniques exist for monitoring tropospheric and ionospheric characteristics by means of low orbiting satellites observing GPS satellites near the Earth’s limb;b)that ionospheric effects along these paths may dominate over tropospheric effects in some situations and, for extrapolation to other scenarios, separation of these two components is necessary;c)that intersatellite links and compatibility may be affected by the ionosphere and the troposphere.

Ionospheric and tropospheric characteristics along satellite-to-satellite paths