Engineering:Long Range Discrimination Radar
| Country of origin | United States |
|---|---|
| Type | Active electronically scanned array early-warning radar |
| Frequency | S band |
| Other Names | Long Range Discrimination Radar (LRDR) |
The Long Range Discrimination Radar (LRDR) that is planned for operational service in Alaska in 2020 is part of the United States's Ground-Based Midcourse Defense anti-ballistic missile system. The main contractor is Lockheed Martin, under a US$784 million contract from the Missile Defense Agency in October 2015.[1]
LRDR is a gallium nitride (GaN)-based, solid-state active electronically scanned array (AESA) early-warning radar[1] that allows for continuous coverage, even when it is undergoing maintenance.[2] The radar consists of individual solid state radar blocks that can be combined to scale up the size of the radar. The multi-purpose GaN device used on the prototype version of the LRDR is from the Japanese electronics company Fujitsu, according to Lockheed Martin.[3]
Construction in Alaska for the LRDR was scheduled to begin in 2019,[1] tentatively at Clear Space Force Station in central Alaska.[4]
In late February 2021, the Missile Defense Agency said that the radar installation was underway, with Initial Operational Capability to be achieved in 2021.[5]
AN/SPY-7(V)1
The AN/SPY-7(V)1 is the official designation of an LRDR-derivative used with the Aegis Ballistic Missile Defense System. On 30 July 2018, the Japanese government approved a plan to purchase two pairs of AN/SPY-7(V)1 for the Aegis Ashore facility and will be installed in Yamaguchi Prefecture and Akita Prefecture. The first operation is expected to start from 2025, by Japan Ground Self Defense Force.[6]
Missile Defense Agency has also decided to use AN/SPY-7(V)1 for the Aegis Ashore to be installed in Hawaii. Derivatives of the AN/SPY-7(V)1 will be used on the Canadian Surface Combatant and the Spanish F-110 frigate.[7]
In September 2020, AN/SPY-7(V)1 was chosen by Canada as the primary radar for its future Canadian Surface Combatant (CSC) along with CMS-330 Combat Management System with Aegis Combat System.[8]
Lockheed Martin promoted this version of radar as the AN/SPY-1 refurbishment program to the US Navy to extend the lifespan of the Ticonderoga-class cruiser and Arleigh Burke-class destroyer to beyond the 2040s.[9] In December 2021, the AN/SPY-6 AESA radar from Raytheon was selected to retrofit Flight IIA Arleigh Burke destroyers; the same radar is used on Flight III ships.[10][11]
References
- ↑ 1.0 1.1 1.2 Alaska's Long Range Discrimination Radar on Track for 2020[|permanent dead link|dead link}}], Jen Judson, DefenseNews.com, 16 August 2016
- ↑ "Long Range Discrimination Radar (LRDR)". https://missilethreat.csis.org/defsys/lrdr/.
- ↑ Lockheed Martin Demonstrates Next Generation Aegis Ashore Solution Lockheed Martin, Jan 11 2018
- ↑ Department of Defense Identifies Planned Site of Future Long Range Discrimination Radar (LRDR), DoD press release NR-193-15, 22 May 2015, accessed 17 August 2016
- ↑ MDA says Alaska-based missile defense radar will be operational in 2021, Jen Judson, DefenseNews, 2021-03-03
- ↑ On the result of component selection of the Aegis system (Aegis Ashore) on land deployment(Japanese) Ministry of Defense Japan, 30 July 2018
- ↑ "U.S. Government Designates Lockheed Martin's Latest Generation Radar: AN/SPY-7(V)1 - Nov 14, 2019" (in en-us). https://news.lockheedmartin.com/2019-11-14-U-S-Government-Designates-Lockheed-Martins-Latest-Generation-Radar-AN-SPY-7-V-1.
- ↑ "Lockheed Martin Signs SPY-7 Radar Contract for CSC Frigate". 11 November 2020. https://www.navalnews.com/naval-news/2020/11/lockheed-martin-signs-spy-7-radar-contract-for-csc-frigate/.
- ↑ Lockheed Martin Advocates Accelerating Aegis, SPY-1 Upgrades USNI.org January 10, 2017
- ↑ "U.S. Navy's SPY-6 Family of Radars". Raytheon. 12 July 2020. https://www.raytheonmissilesanddefense.com/capabilities/products/spy6-radars. Retrieved 12 July 2020.
- ↑ Justin Katz Raytheon to start backfitting destroyers with SPY-6 radar. Breaking Defense (11 Jan 2022)
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