SPY-1
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The AN-|AN/]]SPY-1 IEEE Frequency Bands|S-band]] volume search radar]] is the core of the AEGIS battle management system]]. It has had a number of upgrades; the SPY-2|AN/SPY-2]] is an add-on component for ballistic missile defense]], whose antenna mounts on top of that of the SPY-1. Other radars work with it, such as the SPG-62|AN/SPG-62]] as the target illuminator on all AEGIS vesssels, and, only on the Ticonderoga-class]] cruiser]]s, the SPS-49|AN/SPS-49]] longer-range air search radar. AN/SPY-1 is an IEEE Frequency Bands|S-band]] radar intended to track a large number of targests in a volume of airspace. SPY-3|AN/SPY-3]] combines the S-band functions of the SPY-1 and the X-band features of the SPY-2, but is not physically compatible with the SPY-1 mounting and will go onto classes of ships other than the Ticonderoga, Burke and Kongo. It is the acquisition and midcourse guidance radar for the RIM-156 Standard SM-2]] surface-to-air missile]], which uses the SPG-62|AN/SPG-62]] for terminal guidance. VariantsAN/SPY-1A was installed in the now-retired CG-47 Ticonderoga and other Ticonderogas until Philippine Sea (CG-58). The remaining Ticonderogas received the next major generation, AN/SPY-1B, starting with Princeton(CG-59) and the remaining AEGIS cruisers. The SPY-1B's were upgraded in place to SPY-1B(V). Burke and Kongo destroyers received the AN/SPY-1D. The AN/SPY-1F was developed for the Spanish F-100 frigates, and is physically smaller and has lower power, but similar functionality to the SPY-1D. SPY-1D developmentThe AN/SPY-1D(V), under development for installation in some Burke Flight IIA ships, is an improved system with improved clutter rejection (needed in the littoral (military)|littoral]]), more radar#moving target indicator|moving target indicator (MTI)]] reatures, and better protection against Electronic warfare#electronic attack|electronic deception]]. |