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Widow · (This post was last modified: 09-28-2020, 04:51 AM by Widow.)

4: DATA HANDLING

Data collected by Deep Space Engineering will serve as the initial test set for Chesterfield Algorithm and Analysis platform. This will collect unprecedented data about Deep Space Engineering projects all over Sirius. It will also generate exponentially higher data volumes than any observation missions currently (and previously) undertaken because of the quantity and nature of the data.

Deep Space Engineering is addressing these issues by:

Enabling Deep Space Engineering Researches to easily discover, process, visualise and analyse large volumes of data from Deep Space Engineering missions and validation and calibration activities.
Developing loads for repeatable and shareable science with a version – controlled science algorithm, development environment that supports tools, collocated with data and processing resources.
Developing Open Source Software in the open from Project Inception.

4.1: Data Systems

The Data system Evolution element of the program funds various research opportunities as well as potential interagency initiatives and promotion of Data and Services interoperability through developments and implementation standards.

The Data System element is composed of:

Collaboration connections for Planetary System Sciences
Citizen Science for Planetary Systems Program
Making Planetary Systems Data Records for use in Research Environments.

4.2: Transmissions within Liberty Space

The Remote Communication facilities provides communication links between the remote locations and the scientist and engineers back on Chesterfield. The High-Gain Antennas allow these communication facilities to receive transmissions from Chesterfield. The High-Gain Antenna can send a “beam” of information in a specific direction and it is steerable so the antenna can move and point itself directly toward Chesterfield Station. The benefit of this steerable antenna is that the entire facility doesn’t have to change positions to “talk" to Chesterfield Station: only its antenna is required to move.

There are a number of different kinds of Radio frequencies that are used to communicate between Chesterfield and the remote communication facilities:

Ultra High Frequencies (VHF) band (about 400mHz)
Up to 2 megabits a second, depending on the distance, path and space conditions and also planetary weather patterns.
X-Band – Current standards, when amplified at the facility to send data to Chesterfield more than 10 times more faster than previously possible.
KA band – previously untested frequency four times higher than X-Band which allows data to be transmitted quicker.

In orbit facilities have the problem of being located behind a planet for up to 16 hours of the day. To prevent this from being as much of an issue, a series of satellites are in orbit where the information is transmitted among each other until it can be sent to Chesterfield. This has the potential to distort or reduce the quality of the data received by Chesterfield Station. Each Planetary Communicator facility is expected to send 288 TB of data every 12 months. Some have already far exceeded this with the record being 432TB in 12-month period.

There are four levels of data that can be sent or received by the classical communications systems. These are as follows:

Level 0 - Reconstructed unprocessed instrument and payload data at full resolution with any and all communication artifacts (synchronization frames, communication headers, duplicate data) removed. In most cases Deep Space Engineering observation system provides data to the Active Archive Centres on Planet Pittsburgh as production data sets for processing by the science Data Processing segment or by one of the Science Investigator-led processing systems to produce higher-level products
Level 1A - Reconstructed, unprocessed instrument data at full resolution, time referenced and annotated with ancillary information including Radiometric and Geometric Calibration coefficients and georeferencing parameters computed and appended but not applied to level 0 Data.
Level 1B – Data that has been processed to sensor units (not all instruments have level 1B Service Data)
Level 2 – Derived geophysical variables at the same resolution and location as level 1 Source Data.
Level 3 – Variables mapped on uniform space-time grid scales, usually with some completeness and consistency.
Level 4 – Model output as results from analyses of lower-level data (eg. Variables derived from multiple measurements).

As the technology evolves and becomes more affordable, the use of more advanced tech is considered within Liberty

4.3: Transmission outside Liberty

Due to distances the signal is needing to travel in locations outside Liberty, it is not practical to use the radio wave-based signal used within Liberty. To transmit information gathered in Houses outside Liberty, a technique called Quantum Teleportation is required.

Quantum Teleportation is a process where information can be transmitted from one place to another with the help of classical communication and Quantum Entanglement between sending and receiving location. Because of its use of classical communication which cannot be processed faster than the speed of light, it cannot be used for faster than light transport or communication.

The basic protocol for these “qubits” has been generated in several directions, in particular regarding the dimension of system teleported and the number of parties involved- ie. Sender, controller and receiver.

The multipartite entangled state of two qubits has to be replaced by a maximally entangled state of qudits (a d-level system unit) and the bell measurement ( a joint quantum-mechanical measurement of 2 qubits that determines in which of the 4 Bell states the two qubits are in. The Qubits are in a superposition of 0 and 1 that is a linear combination of the two states. Bell states are a form of entangled and normalised basis vectors) by a measurement defined by a maximally entangled orthonormal basis. The generalisation to infinite-dimensional continuous-variable systems allows for the teleportation of data.

The use of multipartite entangled states instead of a bipartite maximally entangled state allows for several new features: Either the sender can teleport information to several receivers by sending the same state to all receivers which reduces the amount of entanglement needed for the process or teleporting multipartite states or sending a single state in such a way that the receiving parties need to cooperate to extract the information.

In general, mixed States (p) may be transported and a linear transformation (w) applied during teleportation, thus allowing data processing of quantum information. This is one of the most important foundational building blocks of quantum information processing.

In long distances there are a number of “booster” facilities, in which the information is received and re-transmitted until it eventually reaches Chesterfield Station receivers and can be decoded into usable information or re-transmitted to planet Pittsburgh.

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