MartinN. Sweeting

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Image Compression reduces redundancy in data representation in order to achieve saving in the cost of storage and transmission. Image compression compensates for the limited on-board resources, in terms of mass memory and downlink bandwidth and thus it provides a solution to the "bandwidth vs. data volume" dilemma of modern spacecraft. Thus(More)
Constella is a novel very quick response satellite platform that can be used in any low Earth orbit. It can be used as a single unit or as part of a constellation of spacecraft. It can be pre-manufactured to a large extent, and a selection of subsystems can be ready to select from, to provide last-minute configuration options for both the payload and(More)
A robust centralised transmission control policy of framed-ALOHA protocols is presented for low Earth orbit (LEO) satellite store-and-forward communications. This first-order recursive control is capable of maintaining the offered traffic load at nearly constant, optimal level, basing upon maximum likelihood estimate (MLE) of the offered load in the(More)
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