Space data link protocols are protocols that are used to transmit data between satellites and ground stations in satellite communication systems. There are a number of different types of space data link protocols that are used for different purposes and in different types of satellite communication systems. Here are a few examples of space data link protocols:
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Consultative Committee for Space Data Systems (CCSDS) Protocols: The CCSDS is an international organization that develops standards and protocols for satellite communication systems. The CCSDS has developed a number of space data link protocols, including the CCSDS Asynchronous Transfer Mode Protocol (ATM), the CCSDS File Transfer Protocol (FTP), and the CCSDS Telemetry and Telecommand Protocol (TM&TC).
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Space Communications Protocol Standards (SCPS): The SCPS is a set of protocols developed by NASA and the European Space Agency (ESA) for use in satellite communication systems. The SCPS includes protocols for file transfer, telemetry, and telecommand, as well as protocols for network management and security.
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Link Access Protocol for the Satellite Environment (LAPSE): LAPSE is a protocol developed by the International Maritime Organization (IMO) for use in satellite communication systems for maritime applications. LAPSE is designed to provide a reliable and efficient means of transmitting data between ships and land-based stations.
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Link Access Protocol for the Satellite Environment - Balanced (LAPB): LAPB is a protocol that is based on the X.25 protocol and is used in satellite communication systems for data transmission. LAPB is used to establish, maintain, and terminate connections between devices, and is widely used in satellite communication systems.