RELIABILITY-ANALYSIS OF TRANSMISSION REQUIREMENTS IN COMMUNICATION SATELLITE SYSTEMS

An analytical relationship is derived between the reliability of the o n-board power section of communication satellite systems and the effec tive isotropic radiated power requirement. The latter plays a key role in system design, yielding a direct impact on transmitter configurati on and technological features, as well as on the critical compromise b etween transmitter and antenna specifications. Through the proposed ap proach, the impact of antenna complexity on the payload reliability is also evaluated. The analysis has been oriented to a design methodolog y of satellite payloads able to account for reliability constraints in a very early stage of system assessment. The methodology has been app lied to a feasible satellite system. The achieved results confirm the usefulness and the potential of the approach.