Technology Gap Taxonomy¶

A reference table containing the highest-level functional domains of the space and Earth sensing ecosystem. Each record represents a mutually exclusive category of related Technology Gaps that share a common engineering constraint or capability domain.

TAX-1: Autonomy¶

Systems enabling autonomous decision-making, adaptation, and coordination.

TAX-1.1: Autonomous planning & scheduling¶

Closed-loop tasking, optimisation and retasking of sensing operations.

TAX-1.2: Multi-agent coordination¶

Cooperative sensing and coordination across multiple platforms/agents.

TAX-1.3: Onboard data handling¶

Edge processing, triage, compression and dataflow management onboard.

TAX-1.4: Onboard intelligence¶

AI/ML for perception, decision-making and adaptive sensing.

TAX-1.5: Verification & validation¶

Assurance, testing and certification methods for autonomous systems.

TAX-2: Calibration & Validation¶

Technologies ensuring measurement accuracy, traceability, and comparability.

TAX-2.1: Cross-calibration & harmonisation¶

Inter-instrument and inter-mission alignment and harmonisation methods.

TAX-2.2: Drift & stability monitoring¶

Long-term performance monitoring, drift detection and recalibration support.

TAX-2.3: Metrology¶

Measurement standards, traceability and calibration transfer methods.

TAX-2.4: Validation infrastructure¶

Testbeds, reference targets and benchmarking infrastructure.

TAX-2.5: Wavelength & radiometric standards¶

Absolute spectral/radiometric references and standards.

TAX-3: Data Systems¶

Data handling, integrity, interoperability, and long-term usability technologies.

TAX-3.1: Data fusion & assimilation¶

Frameworks for combining multi-source data and integrating models/assimilation.

TAX-3.2: Data provenance & integrity¶

Lineage, auditability, tamper evidence and trust mechanisms for data/products.

TAX-3.3: Interoperability frameworks¶

Standards, APIs and frameworks enabling reuse across systems and communities.

TAX-3.4: Metadata & semantics¶

Descriptive and machine-readable metadata, semantics and ontologies.

TAX-3.5: Preservation & archiving¶

Long-term storage, preservation and reproducible reprocessing support.

TAX-3.6: Uncertainty & inference¶

Uncertainty modelling/propagation and probabilistic inference for sensing products.

TAX-4: Electronics¶

Analogue, digital, and mixed-signal electronics enabling sensing, processing, and control.

TAX-4.1: Analogue & mixed-signal electronics¶

Front-end sensing electronics including amplification, filtering, conversion and readout.

TAX-4.2: Extreme-environment electronics¶

Electronics designed to operate under extreme temperatures, pressures and conditions.

TAX-4.3: Packaging & integration¶

Packaging, interconnects and integration approaches for reliable sensing electronics.

TAX-4.4: Power electronics¶

Power conversion, regulation, distribution and EMI/EMC control for sensing systems.

TAX-4.5: Radiation-tolerant computing¶

Processors and compute architectures designed to operate in radiation environments.

TAX-4.6: Radiation-tolerant memory¶

High-reliability storage and memory systems tolerant to radiation-induced faults.

TAX-5: Platforms¶

Structural, mechanical, thermal, and stability systems that host and enable sensors.

TAX-5.1: Contamination & cleanliness¶

Control of particulate and molecular contamination affecting sensor performance.

TAX-5.2: Cryogenic systems¶

Cooling systems enabling low-temperature instruments and detectors.

TAX-5.3: Environmental hardening¶

Resistance to radiation, dust, corrosion and other extreme operational environments.

TAX-5.4: Mechanisms & deployables¶

Moving/deployable mechanical subsystems, including scanners, gimbals and deployments.

TAX-5.5: Pointing, stability & disturbance control¶

Attitude control, jitter suppression, structural stability and disturbance isolation.

TAX-5.6: Thermal control & thermoelastic stability¶

Thermal management and thermoelastic effects that drive measurement stability and drift.

TAX-6: Sensors¶

Technologies that directly measure physical, chemical, or biological phenomena.

TAX-6.1: Active sensing¶

Transmit-receive sensing modalities such as lidar and radar used to probe atmosphere and subsurface structures.

TAX-6.2: Cross-cutting sensor subsystems¶

Shared sensor subsystems and enabling components that span multiple sensing modalities.

TAX-6.3: Field & gravity sensors¶

Sensors and methods for magnetic, gravity, and related field measurements.

TAX-6.4: High-energy sensors¶

Sensors and optics for high-energy regimes, including X-ray and other energetic photon observations.

TAX-6.5: Photonic sensors¶

Optical and photon-based sensing technologies, including UV, visible, infrared, and related readout chains.