Dual Frequency Synthetic Aperture Radar
E238209
Dual Frequency Synthetic Aperture Radar is a lunar-mapping radar instrument that uses two microwave frequency bands to image the Moon’s surface and subsurface, particularly to detect and characterize water ice and regolith properties.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dual Frequency Synthetic Aperture Radar canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2139151 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Dual Frequency Synthetic Aperture Radar Context triple: [Chandrayaan-2, instrumentsOnOrbiter, Dual Frequency Synthetic Aperture Radar]
-
A.
Airborne Stand-Off Radar
Airborne Stand-Off Radar was a British Royal Air Force surveillance and reconnaissance program centered on the Raytheon Sentinel R1 aircraft, designed to provide long-range, all-weather battlefield and ground-moving-target intelligence.
-
B.
IEEE Radar Systems Panel
The IEEE Radar Systems Panel is a technical body within the IEEE that provides leadership, coordination, and guidance for the radar engineering community, including overseeing major radar-related conferences and activities.
-
C.
passive electronically scanned array
A passive electronically scanned array is a type of radar antenna system that steers its beam electronically using multiple fixed radiating elements fed by phase shifters, rather than by mechanically moving the antenna.
-
D.
APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
-
E.
IEEE Radar Conference
The IEEE Radar Conference is a leading annual technical conference that brings together researchers, engineers, and practitioners to present and discuss advances in radar theory, technology, and applications.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Dual Frequency Synthetic Aperture Radar Target entity description: Dual Frequency Synthetic Aperture Radar is a lunar-mapping radar instrument that uses two microwave frequency bands to image the Moon’s surface and subsurface, particularly to detect and characterize water ice and regolith properties.
-
A.
Airborne Stand-Off Radar
Airborne Stand-Off Radar was a British Royal Air Force surveillance and reconnaissance program centered on the Raytheon Sentinel R1 aircraft, designed to provide long-range, all-weather battlefield and ground-moving-target intelligence.
-
B.
IEEE Radar Systems Panel
The IEEE Radar Systems Panel is a technical body within the IEEE that provides leadership, coordination, and guidance for the radar engineering community, including overseeing major radar-related conferences and activities.
-
C.
passive electronically scanned array
A passive electronically scanned array is a type of radar antenna system that steers its beam electronically using multiple fixed radiating elements fed by phase shifters, rather than by mechanically moving the antenna.
-
D.
APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
-
E.
IEEE Radar Conference
The IEEE Radar Conference is a leading annual technical conference that brings together researchers, engineers, and practitioners to present and discuss advances in radar theory, technology, and applications.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
lunar radar instrument
ⓘ
remote sensing instrument ⓘ synthetic aperture radar ⓘ |
| application |
detection of lunar polar ice deposits
ⓘ
mapping regolith thickness variations ⓘ studying dielectric properties of lunar materials ⓘ supporting landing site characterization ⓘ supporting lunar resource prospecting ⓘ |
| dataType |
polarimetric radar measurements
ⓘ
radar backscatter ⓘ |
| designedFor |
characterizing lunar regolith properties
ⓘ
characterizing lunar water ice ⓘ mapping the Moon ⓘ |
| hasCapability |
lunar mapping
ⓘ
subsurface imaging ⓘ surface imaging ⓘ |
| hasFeature |
dual-band radar imaging
ⓘ
synthetic aperture processing ⓘ |
| measurementGoal |
discriminate water ice from dry regolith
ⓘ
estimate regolith dielectric constant ⓘ map distribution of volatiles on the Moon ⓘ |
| observes |
lunar subsurface
ⓘ
lunar surface ⓘ |
| operatesIn | microwave region of the electromagnetic spectrum ⓘ |
| senses |
regolith physical properties
ⓘ
subsurface structure ⓘ surface roughness ⓘ water ice ⓘ |
| targetsBody | Moon ⓘ |
| uses |
dual frequency operation
ⓘ
microwave frequency bands ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Dual Frequency Synthetic Aperture Radar Description of subject: Dual Frequency Synthetic Aperture Radar is a lunar-mapping radar instrument that uses two microwave frequency bands to image the Moon’s surface and subsurface, particularly to detect and characterize water ice and regolith properties.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.