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Navy Electricity and Electronics Training Series (NEETS) |
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Module 18 − Radar Principles
Pages i, 1−1, 1−11, 1−21, 1−31, 1−41, 2−1, 2−11, 2−21, 2−31, 2−41, 3−1, 3−11, 3−21, 4−1, 4−11, 4−21, AI−1, AII−1, Index−1 to 3
MODULE 18 Index A A-scope, 3-2 Acquisition (mode), 1-37 Airborne radar, 1-38 Airborne radar antennas, 3-20 to 3-21 Air control panel, 4-17 Altitude, 1-12 Ambiguous returns, 1-6 to 1-7 Amplitron, 2-17 Antennas, broadside arrays, 3-19 directivity, 3-15 horn radiators, 3-19 parabolic reflectors, 3-16 to 3-18 power gain, 3-15 reflectors, 3-16 to 3-19 Antenna beam width, 1-14, 3-15 Antenna system, 1-20 Antijamming circuits, 2-41 Artificial transmission line, 2-10 to 2-11 Asymmetrical multivibrator, 2-5 ATR, 2-23 to 2-26 Automatic gain control (AGC), 2-40 Average power, 1-7, 4-8 to 4-9 Azimuth, 1-3 B Balanced mixer, 2-34 to 2-37 Bearing, 1-11 to 1-12 relative, 1-11 true, 1-3, 1-11 Bearing resolution, 1-14 Beat frequency, 1-27 Blip, o'scope, 3-3 Blocking, 2-31 Broadside array, 3-19 C Carrier-control approach (CCA), 1-38 Carrier frequency, 1-5, 4-2 Clutter, 2-42 Coherence, 1-29 Coherent oscillator, 2-18 Conical scanning, 1-21 Continuous-wave (CW) transmission, 1-25 Cooling systems, 4-19 to 4-21 Crossed-field amplifier, 2-17 to 2-20 D Deflection coils, 3-7 to 3-8 Dehydrators, 4-18 to 4-19 Deionization time, 2-22, 4-13 Designation (mode), 1-37 Detectors, 2-32, 2-38 Difference frequency, 1-27 Directional antenna, 3-15 Directivity, 3-15 Discriminator, 2-33 Doppler effect, 1-25 to 1-27 Dry-air systems, 4-16 to 4-19 Ducting, 1-17 Duplexers, 2-20 to 2-30 Duty cycle, 1-8 to 1-9 E Echo, 1-2 Echo box, 4-5 to 4-8 Electronic counter-counter measures (ECCM), 2-40 to 2-41 Electrical power, 4-15 to 4-16 Elevation angle, 1-3 F Fast-time-constant (FTC), 2-41 Feedhorns, 3-20 Frequency modulation, 1-27 Frequency spectrum, 4-2 to 4-5 Frequency synthesizer, 2-18 G Gated AGC, 2-41 Glow discharge, 2-22 Ground-controlled approach (GCA), 1-38 Guidance radar, 1-37 Index-1 H Hazards, 4-22 to 4-24 rf radiation, 4-22 X-rays, 4-23 Height-finding radar, 1-35 Horn radiators, 3-19 Hybrid ring, 2-28 to 2-30 I IF amplifier, 2-38 Indicators, 3-1 to 3-14 A-scope, 3-2 PPI, 3-4 to 3-10 RHI, 3-3 Instantaneous automatic gain control (IAGC), 2-40 Intermediate frequency, 1-20 K Keep-alive voltage, 2-22, 4-13 Keyed-oscillator transmitter, 2-13 to 2-16 Klystron power amplifier, 2-18 L Lin-log amplifier, 2-45 to 2-47 Liquid-cooling system, 4-19 to 4-21 Logarithmic receiver, 2-45 to 2-47 M Magic T, 2-35 Magnetron oscillator, 2-7, 2-13 Master oscillator, 2-4 Minimum discernible signal (MDS), 4-11 Missile-guidance radar, 1-37 Mixers, 2-32 to 2-37 Modulators, 2-6 to 2-11 hard-tube, 2-8 line-pulsing, 2-8 to 2-11 Monopulse, lobing, 1-23 receiver, 2-47 to 2-48 Moisture lapse, 1-17 Moving target indicator (MTI), 2-42 to 2-45
N Noise, 2-31 Noise figure, 4-11 Nutating, 1-21 P Parabolic reflectors, 3-16 to 3-18 Parasitic array, 3-17 Peak power, 1-7 Persistence, CRT, 3-10 Phantastron, 3-11 Pip, o'scope, 3-3 Plane wavefronts, 3-17 Planned-position indicator (PPI), 3-4 to 3-10 Power, average, 1-7 gain, antenna, 3-15 measurement, 4-8 to 4-9 peak, 1-7, 4-8 to 4-9 Power-amplifier transmitter, 2-16 to 2-20 Preamplifier, 2-33 Pulse-doppler transmission, 1-29 Pulse-forming network, 2-11 Pulse-modulation transmission, 1-28 Pulse-repetition rate (PRR), 1-5 Pulse-repetition frequency (PRF), 1-5, 1-7 to 1-10 Pulse-repetition time (PRT), 1-6 R Radar, accuracy, 1-15 to 1-18 altitude, 1-12 altimeter, 1-32 antennas, 3-15 to 3-21 beams, 1-14, 1-20, 3-15 bearing, 1-11 classification and use, 1-30 to 1-32 components, 1-18 to 1-20 duplexers, 2-20 to 2-30 indicators, 3-1 to 3-14 maintenance, 4-1 to 4-24 receivers, 2-30 to 2-48 safety, 4-22 to 4-24 support systems, 4-14 to 4-21 synchronizers, 2-1 to 2-6 Index-2 Radar, accuracy - Continued transmission methods, 1-25 to 1-30 continuous-wave, 1-25 to 1-27 frequency-modulation, 1-27 pulse-doppler, 1-29 pulse-modulation, 1-28 to 1-29 types, 1-33 to 1-39 airborne, 1-38 CCA and GCA, 1-38 missile guidance, 1-37 search, 1-33 to 1-35 track, 1-37 Radiation hazards, 4-22 Range, 1-3 to 1-6 Range gate, 3-11 Range height indicator (RHI), 3-3 Range marker, 3-11 Range resolution, 1-13 Range step, 3-13 Ranging circuits, 3-10 3-14 Receivers, 2-30 to 2-48, 4-9 to 4-12 bandwidth, 4-12 components, 2-33 to 2-39 logarithmic, 2-45 to 2-47 monopulse, 2-47 to 2-48 moving-target indicator (MTI), 2-42 to 2-45 sensitivity, 4-10 to 4-12 special circuits, 2-40 to 2-42 superheterodyne, 2-32 to 2-39 Recovery time, 1-5, 4-13 to 4-14 Reflex klystron, 2-33 Refraction, 1-17 Refractive index, 1-17 Relative bearing, 1-11 Resolution, 1-13 to 1-14 Resonance chamber, 4-5 RF radiation hazards, 4-22 Ring time, 4-7 to 4-8 S Safety, 4-22 to 4-24 Scanning, 1-20 to 1-25 Sea clutter, 2-42 Search radar, 1-12, 1-33 to 1-36 Second-sweep echoes, 1-6 Sensitivity time control (STC), 2-40 Slant range, 3-2 Spectrum analyzer, 4-2 Standing wave measurement, 4-14 Superheterodyne receiver, 2-32 to 2-39 Support systems, 4-14 to 4-21 Synchronizers, 2-1 to 2-6 T Thyratron, 2-12 Timer, 2-1 TR tube, 2-21 to 2-26 Tracking radar, 1-37 Transmission methods, radar, 1-25 to 1-30 Transmitter frequency, 4-2 to 4-8 Transmitter power measurement, 4-8 to 4-9 Transmitters, 2-6 to 2-20 keyed-oscillator, 2-13 to 2-16 power amplifier, 2-16 to 2-20 Traverse signal, 1-24 Trigger generator, 2-1 Trigger pulses, 2-2 True bearing, 1-3, 1-11 Two-dimensional radar, 1-34 V Vertical plane, 1-3 Video enhancement features, 2-39 Voltage standing wave ratio (VSWR), 4-14 W Wavefronts, 3-16 X X-ray hazard, 4-23 Index-3
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