3D Imaging Array Using Shape-Memory Booms for Single-Pass Space Object Survey
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Solution Overview
Problem
Current methods for 3D imaging of space objects require multiple passes around the object, leading to excessive use of propulsive fluids and increased costs due to the need for multiple spacecraft, limiting mission time and capability.
Innovation Solution
A ring-like array of interconnected nodes forming an open imaging area, which can rotate or maintain a planar configuration using shape-memory booms, allowing a single flyby of space objects with synchronized positional and imaging information signals from multiple nodes, enabling efficient 3D imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple passes around the space object are made to obtain 3D imaging data, then complete imaging coverage is achieved, but propulsive fluid consumption increases significantly
Solution Approach 1:
The invention transitions from temporal sampling (multiple passes over time) to spatial sampling (simultaneous measurements from multiple locations in space). By deploying a constellation of satellites at different positions around the space object, the system obtains complete 3D imaging data in a single pass, eliminating the need for repeated orbits and reducing propulsive fluid consumption.
2Measurement precision
If multiple space vehicles are used to pass over different portions of the space object, then complete imaging coverage is achieved, but mission costs increase
Solution Approach 1:
The invention divides the imaging function across multiple satellites in a constellation, where each satellite captures data from its specific vantage point. This segmentation allows complete 3D imaging coverage to be achieved through coordinated measurements from multiple platforms, rather than requiring a single complex spacecraft to perform all imaging functions alone.
3Measurement precision
If multiple orbits with varying configurations are performed to image different parts of the space object, then comprehensive imaging is achieved, but mission time increases
Solution Approach 1:
The invention performs preliminary positioning of multiple satellites at their respective imaging locations before the space object passes through the imaging volume. By pre-establishing the spatial configuration of the satellite constellation, the system captures complete 3D data during a single pass, eliminating the time required for multiple orbital maneuvers and varying orbit configurations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach minimizes fuel consumption and costs by allowing a single pass for complete imaging, significantly reducing mission time and enabling the imaging of multiple space objects with a single array of nodes, increasing efficiency and the number of targets surveyed within a given mission timeframe.
Implementation Method 1
the space vehicle arrangement awaits the passage of the space object or the array of nodes is rotated by the shape memory boom
Implementation Method 2
If the array of nodes is rotated, the centrifugal force will maintain the rigidity between the nodes and thus will keep the interconnecting tethers taut
Data Source
AI summary
A spacecraft arrangement having sensors for providing the three dimensional imaging of space object to be imaged and having a plurality of spaced apart nodes defining an open imaging area therebetween through which imaging area the space object to be imaged passes.