Defensa aérea

Long Range Discrimination Radar

Also known as
  • LRDR
  • Long-Range Discrimination Radar

Long Range Discrimination Radar es un radar AESA de banda S, de estado sólido y basado en GaN, construido por Lockheed Martin en Clear Space Force Station, Alaska. Su registro público se centra en la detección para la defensa antimisiles del territorio nacional: aceptación operativa en 2025, recopilación de datos del dominio espacial y seguimiento de blancos reales en FTX-26a que alimentó C2BMC para un enfrentamiento simulado de Ground-Based Midcourse Defense.

Long Range Discrimination Radar, Radar de discriminación de largo alcance para misiles balísticos, Defensa aérea
Image source: File:211026-D-D0500-101.jpg
Profile / Specs

Profile

Origin
Estados Unidos
Type
Radar de discriminación de largo alcance para misiles balísticos
Service note
década de 2010-presente

Specifications

Tipo de radar
Radar de arreglo activo de barrido electrónico multifunción y multifaz
Banda de frecuencia
Banda S
Tecnología
Arquitectura de nitruro de galio (GaN) de estado sólido
Arquitectura
Tecnología de radar S4R escalable y de arquitectura abierta
Misión
Búsqueda, seguimiento, discriminación y evaluación de impacto para la defensa antimisiles del territorio nacional
Integración
Proporciona datos precisos de seguimiento, discriminación y evaluación de impacto al Ground-Based Midcourse Defense Fire Control System
Integración en prueba de vuelo
FTX-26a siguió y discriminó un blanco de misil balístico y envió datos a C2BMC para un enfrentamiento simulado de GMD
Sitio de operación
Clear Space Force Station, Alaska
Homeland Missile-Defense Architecture

LRDR is documented as a sensor node in a wider homeland missile-defense architecture rather than a standalone combat system.

Compatible itemItem typeCompatibility evidence
Ground-based Midcourse Defense, Ground-based ballistic missile defense system, Air DefenseGround-based Midcourse DefenseGround-based ballistic missile defense system

The FTX-26a report says LRDR forwarded flight-test data through C2BMC to support a simulated Ground-Based Midcourse Defense engagement.

Sources: An American Shield: FTX-26a LRDR Demonstration

C2BMC, Ballistic missile defense command-and-control system, Support EquipmentC2BMCBallistic missile defense command-and-control system

The same FTX-26a report says C2BMC commanded the test and received LRDR track data for sharing with the simulated GMD engagement.

Sources: An American Shield: FTX-26a LRDR Demonstration

Radar Family Context

Lockheed Martin describes LRDR as part of its newer solid-state radar technology line for missile-defense sensing.

Compatible itemItem typeCompatibility evidence
AN/SPY-7 radar, Solid-state S-band AESA radar family, Air DefenseAN/SPY-7 radarSolid-state S-band AESA radar family

Lockheed Martin's 2025 LRDR feature places LRDR's S4R radar technology in a family that also includes SPY-7 and TPY-6.

Sources: LRDR: America's First Line of Defense

Operational Role And Test Context

LRDR se entiende mejor como un sensor estratégico fijo: el valor del radar está en la calidad de los datos de seguimiento y discriminación que puede pasar a la red de mando de defensa antimisiles.

ContextoDetalle respaldado por fuentes
Sitio fijoEl registro público sitúa el radar en Clear Space Force Station, Alaska, donde MDA celebró la ceremonia de despliegue inicial en 2021.
Ruta de aceptaciónLockheed Martin informó la aceptación final DD250 y la entrega a MDA en 2024; Space Force Combat Forces Command asumió posteriormente la aceptación operativa.
Red de defensa antimisilesFTX-26a mostró a LRDR remitiendo datos reales de prueba de vuelo a C2BMC para un enfrentamiento simulado de Ground-Based Midcourse Defense.
Tecnología de radarLockheed Martin describe LRDR como un radar de banda S basado en GaN y de arquitectura abierta que usa tecnología S4R en una familia que también incluye TPY-6 y SPY-7.
Estado de uso públicoLas fuentes públicas disponibles documentan preparación operativa, recopilación de datos del dominio espacial y seguimiento en pruebas de vuelo, más que un enfrentamiento de combate identificado.

Fuentes: Initial Fielding of Long-Range Discrimination Radar in Alaska; Lockheed Martin Successfully Transitions Long Range Discrimination Radar to the Missile Defense Agency; Combat Forces Command Long Range Discrimination Radar operational acceptance; An American Shield: FTX-26a LRDR Demonstration; LRDR: America's First Line of Defense.

Timeline

Long Range Discrimination Radar Key Events

  1. Se anuncia el sitio previsto en Alaska

    El Department of Defense anunció un despliegue previsto de LRDR en Alaska y dijo que se esperaba que el radar comenzara operaciones defensivas en 2020.

    Sources: Department of Defense Identifies Planned Site of Future Long Range Discrimination Radar (LRDR)

  2. Ceremonia de despliegue inicial en Alaska

    La Missile Defense Agency celebró la ceremonia de despliegue inicial de LRDR en Clear Space Force Station, marcando la transición del radar hacia operaciones de despliegue y pruebas.

    Sources: Initial Fielding of Long-Range Discrimination Radar in Alaska

  3. Transferido a la Missile Defense Agency

    Lockheed Martin dijo que LRDR completó la aceptación final DD250 y fue entregado a la Missile Defense Agency antes del proceso de decisión sobre capacidad operativa.

    Sources: Lockheed Martin Successfully Transitions Long Range Discrimination Radar to the Missile Defense Agency

  4. Prueba FTX-26a de seguimiento de blanco real

    Lockheed Martin y MDA dijeron que LRDR detectó, siguió y discriminó un blanco de misil balístico lanzado desde el aire con contramedidas, y luego remitió datos a C2BMC para un enfrentamiento simulado de GMD.

    Sources: An American Shield: FTX-26a LRDR Demonstration

  5. Aceptación operativa

    U.S. Space Force Combat Forces Command asumió la aceptación operativa de LRDR después de que MDA completara el periodo de prueba operativa.

    Sources: Combat Forces Command Long Range Discrimination Radar (LRDR) operational acceptance

Media

Long Range Discrimination Radar Videos

Long Range Discrimination Radar Images

Long Range Discrimination Radar, Radar de discriminación de largo alcance para misiles balísticos, Defensa aérea - view 1
Source: File:Fielding event marks end of radar construction by Army engineers in Alaska (190923-A-A1410-1001).jpg
Long Range Discrimination Radar, Radar de discriminación de largo alcance para misiles balísticos, Defensa aérea - view 2
Source: File:Fielding event marks end of radar construction by Army engineers in Alaska (211206-A-QR280-1024).jpg
Related Weapon Systems
Ground-based Midcourse Defense, Ground-based ballistic missile defense system, Air DefenseAir DefenseGround-based Midcourse DefenseGround-based ballistic missile defense systemGround-based Midcourse Defense (GMD) is the U.S. homeland ballistic missile defense system built around silo-launched Ground-Based Interceptors, missile-defense command networks, and long-range sensor inputs. Boeing has led GMD integration since 1998, while Army operators and MDA test reporting show the system's current public record is readiness testing and homeland-defense alert posture rather than documented combat employment.
Next Generation Interceptor (NGI), Ground-launched ballistic missile interceptor, Air DefenseAir DefenseNext Generation Interceptor (NGI)Ground-launched ballistic missile interceptorNext Generation Interceptor (NGI) is Lockheed Martin's planned homeland ballistic missile interceptor for the U.S. Missile Defense Agency's Ground-based Midcourse Defense system. The program moved from competing 2021 development awards to a 2024 Lockheed Martin downselect and a 2026 Courtland production facility, with public sources emphasizing multiple kill vehicles, solid-rocket propulsion, in-flight communications upgrades, and schedule risk around the original 2028 fielding target.
AN/TPQ-53 multimission radar, Mobile multimission counterfire and air-surveillance radar, Electronic WarfareElectronic WarfareAN/TPQ-53 multimission radarMobile multimission counterfire and air-surveillance radarThe AN/TPQ-53, commonly called Q-53, is a Lockheed Martin mobile active electronically scanned array radar that began as the Army's counterfire replacement for AN/TPQ-36 and AN/TPQ-37 Firefinder radars. Its baseline mission is to detect, classify, track, and locate mortar, artillery, and rocket launches in 90-degree or 360-degree modes, while software and open-architecture upgrades have extended the same family into counter-UAS, air-surveillance, and wider multimission radar roles.

Sources

Long Range Discrimination RadarPublisher: Lockheed Martin | Note: Supports manufacturer background, open-architecture context, and official product context for LRDR as Lockheed Martin's operational homeland-defense radar. | Accessed: 2026-06-29Long Range Discrimination Radar (LRDR) Fact SheetPublisher: Lockheed Martin | Note: Supports LRDR technical background, GaN-based scalable subarray architecture, and long-range discrimination mission context. | Accessed: 2026-06-29Department of Defense Identifies Planned Site of Future Long Range Discrimination Radar (LRDR)Publisher: U.S. Department of Defense | Note: Supports the 2015 Alaska site announcement and the early deployment timeline for LRDR. | Accessed: 2026-06-29Initial Fielding of Long-Range Discrimination Radar in AlaskaPublisher: 168th Wing | Note: Supports the 2021 initial fielding ceremony at Clear Space Force Station and the radar's fielding-transition milestone. | Accessed: 2026-06-29Combat Forces Command Long Range Discrimination Radar (LRDR) operational acceptancePublisher: U.S. Space Force Combat Forces Command | Note: Supports operational acceptance in 2025 and the radar's mission to provide precision discrimination and hit-assessment data to the Ground-Based Midcourse Defense Fire Control System. | Accessed: 2026-06-29Lockheed Martin Successfully Transitions Long Range Discrimination Radar to the Missile Defense AgencyPublisher: Lockheed Martin | Note: Supports the 2024 DD250 final acceptance, transition milestone from Lockheed Martin to the Missile Defense Agency, and start of Space Force space-domain awareness data collection. | Accessed: 2026-06-29An American Shield: FTX-26a LRDR DemonstrationPublisher: Lockheed Martin | Note: Supports the FTX-26a flight-test event, LRDR live target detection, tracking, and discrimination, C2BMC data forwarding, and simulated GMD engagement context. | Accessed: 2026-06-29LRDR: America's First Line of DefensePublisher: Lockheed Martin | Note: Supports LRDR's operational homeland-defense framing, S4R technology context, and relation to TPY-6 and SPY-7 within Lockheed Martin's next-generation radar family. | Accessed: 2026-06-29File:211026-D-D0500-101.jpgPublisher: Wikimedia Commons | Note: Wikimedia Commons file page for the public-domain U.S. Space Force photo used as the primary image. | Accessed: 2026-06-29File:Fielding event marks end of radar construction by Army engineers in Alaska (190923-A-A1410-1001).jpgPublisher: Wikimedia Commons | Note: Wikimedia Commons file page for the public-domain Army photo showing LRDR construction at Clear Space Force Station. | Accessed: 2026-06-29File:Fielding event marks end of radar construction by Army engineers in Alaska (211206-A-QR280-1024).jpgPublisher: Wikimedia Commons | Note: Wikimedia Commons file page for the public-domain Army photo of the LRDR initial fielding ceremony. | Accessed: 2026-06-29