AN/FPS-118 Over-The-Horizon-Backscatter (OTH-B) Radar
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4 j. m# f; v5 E& n: |Specifications
3 N7 H1 u$ c) q0 ^) w9 r: Z# ^/ {Operator U.S. Air Force, Air Combat Command, Newport News, VA / Lockheed Martin Co. www.guger.net2 L& k* S/ R. l5 O
Radar Type FM/CW Bistatic Doppler 4 W0 q- N1 W5 s8 Y% W |
Antenna Types Horizontal Linear Phased Arrays
: {* W, I d0 t# o( }Maximum CW Radiated Power 1,000,000 W (12 transmitters)
- H% a* T: p4 b! U7 e' AEffective Radiated Power 80 dBW (100 MW)
3 [' F: b; B% \# v8 M) M$ UGoogle Earth中文论坛-谷客论坛-谷歌地球论坛Transmit Array Design Canted Dipoles, Vertical Backscreen
/ D6 x$ i, Z% L3 |& JGoogle Earth中文论坛-谷客论坛-谷歌地球论坛Transmit Frequency 5-28 MHz in 6 Bands
|9 j v7 \ W1 l( G卫星地图,软件下载,地标坐标Transmit Array Elements 12 per band 卫星地图,软件下载,地标坐标. b* I2 S2 f" P3 M* L. F; H
Subarray Apertures 304, 224,167,123, 92, 68 m
: ?; r1 H3 |# K D1 ITransmit Azimuth Beamwidth (3 dB) 7.5 deg
2 T- ^0 A4 v' k2 x6 E/ Z8 tTransmit Elevation Beam (3-dB points) 8-33 deg @ 5 MHz, 5-15 deg @ 28 MHZ Google Earth中文论坛-谷客论坛-谷歌地球论坛* S! X, @0 V" f6 E( ]* l8 v
Transmit Azimuth Beam Steer ?0 deg
/ L8 L4 o/ o+ d- |7 Q6 [Receive Array Design 246 5.4-m Vertical Elements with 20-m Backscreen % [6 X. C( s6 U4 P# R0 [$ l
Receive Frequency 5-28 MHz in 3 Bands Google Earth中文论坛-谷客论坛-谷歌地球论坛4 x6 z# Y+ l! P, }* v7 p* T& o
Receive Array Aperture 1519, 1013, 506 m # Q& @1 v9 T/ @3 O6 E6 _
Number of Active Receive Elements 82
4 B, _1 g! k9 q3 G, K2 YGoogle Earth中文论坛-谷客论坛-谷歌地球论坛Receive Azimuth Beamwidth (3 dB) 1.25 deg (no weighting), 2.5 deg (raised-cosine weighting) ( D2 |9 f: ^; f' A$ Y- P, r7 I. N1 Y1 k
Receive Elevation Beam (3-dB points) 8-33 deg @ 5 MHz, 5-15 deg @ 28 MHZ www.guger.net5 V# G% A4 R |8 e; E) `, ~
Receive Azimuth Beam Steer ?0 deg / l& N, W/ W1 a" N
ECRS Receive Location 44.79 N, 67.79 W + \& a, {. f# q1 q
ECRS Azimuth Limits (modified) 31.5-91.5-151.5-211.5 deg East of North
8 I3 K/ H0 c6 I# W! a) K- e$ J: c卫星地图,软件下载,地标坐标ECRS Transmitter-Receiver Separation 160 km
, r5 w+ \+ ]* I1 [2 p) dECRS Operations Center Bangor ANGB, ME www.guger.net$ `' h4 [6 q( J* h: _- S K2 _1 P
WCRS Receive Location 41.70 N, 121.18 W 4 v" E! x1 i0 b
WCRS Azimuth Limits (3 segments) 160-220-280-340 deg East of North 卫星地图,软件下载,地标坐标' L; {6 d5 n3 n8 C0 ]
WCRS Transmitter-Receiver Separation 160 km
: H5 d8 K) P' S4 F0 {. k2 \7 y+ J- a8 [WCRS Operations Center Mountain Home AFB, ID www.guger.net4 ?8 r" T: r" a( ]( g. j+ i# A
Waveform Repetition Frequency 10-60 Hz Google Earth中文论坛-谷客论坛-谷歌地球论坛& \4 l8 W! S V, ?% M- n7 N
Waveform (chirp) Bandwidth 5-40 kHz
; j7 u9 Y8 e8 ~. ~- m$ HCoherent Integration Time 0.7-20.5 s
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[ 本帖最后由 aska-飞鸟 于 2008-5-6 13:03 编辑 ]
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