CCSDS packet telemetry

This paper presents the details of a data acquisition system for space communication. It is efficient, adaptive, secured and low complexity featured CCSDS based Packet Telemetry System. Previously each space agency had its own data handling systems and protocols which were not interoperable. Hence, CCSDS (Consultative Committee for Space Data Systems) was developed as an international standard for telemetry equipment and software [1]. This paper presents a methodology for building the data acquisition system. It is implemented by encapsulating the source packets containing application process data from the satellite within the primary header. This produces a fixed length transfer frame which is error free and reliable as per CCSDS standards. The transfer frame data from the PROM (Programmable Read Only Memory) which contains the application process data is read and defragmented to obtain the source packets at the ground system.