AN/APG-68 The AN/APG-68 radar is a long long rang rangee (up (up to 296 296 [1] km) Pulse-doppler radar designed designed by Westinghouse Westinghouse (now Northrop (now Northrop Grumman) Grumman) to replace AN/APG-66 replace AN/APG-66 radar in the the F-16 Fig Fightin hting g Fal Falcon con.. The The AN/A AN/APG PG-6 -68( 8(V) V)8 8 and earlier radar system consists of the following linereplaceable units: units: •
Antenna
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Dual Mode Transmitter Mode Transmitter (DMT) (DMT)
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Modular Low-power Low-power radio frequenc frequency y (MLPRF) Programmable signal Programmable signal processor (PSP) processor (PSP) •
The AN/APG-68(V)9[2] radar system consists of the following line-replaceable lowing line-replaceable units: units : •
Antenna
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Medium Duty Transmitter (MDT)
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Modular Receiver/Exciter (MoRE)
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Common Radar Processor (CoRP)
The AN/APG-68 AN/APG-68(V)9 (V)9 radar is the latest latest deve develop lopment ment.. Besides the increase in scan range compared to the previous version, version, it has a Synthetic a Synthetic aperture radar (SAR) radar (SAR) capability. The APG-68(V)9 has equipped several variants, including ing the the F-16 F-16D D Bloc Block k 52+s 52+s of the the Israeli Israeli Air For Force ce,, Republic of Singapore Air Force, Force , Turkish Air Force, Force,[3] Moroccan Air Force and Force and Greek Greek Air Force, Force , Pakistan Air Force,F-16C/D Force ,F-16C/D Block 52+s of the Polish the Polish Air Force and F-16 A/B Block 15 MLU of the Royal the Royal Thai Air Force
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Speci Specific ficat atio ions ns •
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Freque Frequenc ncy: y: Starting Starting Envelo Envelope pe freque frequenc ncy y around around 9.86 GHz.
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Under Under AIS Testing as high as 26 GHz
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Range: 296.32 km, 184 miles
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Range for 5m2 aerial target is 105km [4]
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Search cone: 120 degrees × 120 degrees
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Programmable Signal Processor (PSP) - The core radar radar compo compone nent nt whic which h is respon responsi sibl blee for signa signall proprocessing, frequency selection, signal digitization for B-Scope B-Scope display. display. The PSP is controll controlled ed through through the F-16 F-16 Heads Heads Down Down Displ Display ay Set Set (HDDS) (HDDS) or what is commonly called the Multi-Function Displays (MFDs (MFDs). ). The PSP is direc directed ted by the syssystem operational tem operational flight program (OFP), program (OFP), which is controlled trolled and modified modified for new threats or addition addition radar system requiremen requirements. ts. The PSP also contains all the controls circuitry for radar A/A radar A/A and and A/G A/G op operational scan patterns and SAR/ISAR operation.
Azimuth angular coverage: ±10 degrees / ± 30 degrees / ± 60 degrees 1
Modular Low Powered Powered Radio Frequency Frequency (MLPRF) - The frequency The frequency generator for generator for the radar system. Frequency generation is dependent on the random frequency selection from the radar tables within the PSP upon system start-up. The MLPRF will generate a small amount of RF Drive, which is sent to the Dual Mode Transmitter (DMT), where it is amplified and and a smal smalll RF samp sampleis leis sent sent to the the MLPR MLPRF F for comparison checksum (more like a check and balance system). system). The MLPRF also is respons responsibl iblee for for the receiving of the radar return, generating the RF injection noise (for RF discrimination), and the process cessed ed RF with within in the the MLPR MLPRF F is then then late laterr sent sent to the the PSP for video processing processing and threat/target threat/target matching against the radar threat tables within the PSP, prior to flightcrew system display.
Dual Mode Mode Trans Transmi mitte tterr (DMT) (DMT) - A 24,000 24,000 volt volt radar transmitter, containing a TWT a TWT,, which generates ates the the ampl amplifi ified ed RF to be sent sent to the the rada radarr Ante Antenn nnaa for for system system emission emission.. The TWT operates operates by optical pulses received from the DMT’s internal Pulse Decker Unit and TWT Cathode/Anode voltage inputs.
Antenna - A planar array antenna, which is constructed structed to receiv receivee RF data through through a waveguide system. system. The transmitt transmitted ed and received received pulses pulses are controlled in time by the PMW (Pulse Modulated Wave) Wave) radar design design,, and the wave wavegui guide de duplexer assembl assembly. y. Internal Internal to the antenna antenna are Uniphase Uniphaserr Assembl Assemblies ies (used for for quadratu quadrature re phase phase control) control),, Phase Shifters (used of quadrature I/Q data) and gimbalized motor con control trol for antenna antenna position positioning ing and position correction. correction.
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References
[1] http://www.deagel.com/Aircraft-Warners-and-Sensors/ ANAPG-68_a001560001.aspx [2] http://www.es.northropgrumman.com/solutions/apg68/ assets/APG68.pdf [3] http://www.flightglobal.com/articles/2009/02/25/ 323057/turkey-completes-deal-for-30-new-f-16s.html [4] http://defence.pk/threads/ radar-ranges-of-different-fighters.94948/page-7
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External links •
Northrop Grumman APG-68(V)9 Site
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AN/APG-68 Global Security.com
EXTERNAL LINKS
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Text and image sources, contributors, and licenses
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Text AN/APG-68 Source: https://en.wikipedia.org/wiki/AN/APG-68?oldid=646082919 Contributors: Michael Devore, XLerate, Arado, Engineer Bob, Ms2ger, Kevin, SmackBot, Colputt, Dual Freq, TheGerm, A.R., A5b, MonsieurET, Amalas, Cydebot, NDCompuGeek, Thijs!bot, Oldwildbill, WillMak050389, Sebras, BilCat, Ndunruh, Lorddragyn, A. Carty, Kumioko (renamed), Addbot, Luckas-bot, Yobot, Xqbot, Slwiki2008, FrescoBot, EmausBot, BG19bot, YFdyh-bot, Aladdin Ali Baba and Anonymous: 20
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