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Radar System Engineering

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738 RADAR SYSTEM ENGINEERING<br />

Antenna, rolled parallel-platescanning,<br />

304<br />

Schwartzschild,29$298<br />

of SCI height finder, 298-302<br />

stabilization of (see Stabilization; Sta.<br />

bilizer)<br />

Yagi, 277<br />

Antenna equation, 271-272<br />

Antemafeedj 272–274<br />

Antenna iilterfor radar relay, 720<br />

Antenna mount, 271<br />

Antenna pattern for airborne groundmapping,<br />

23<br />

Antenna temperature, 32<br />

Anticlutter circuits, 460<br />

Antijamming, 457–460<br />

AN/TPG-1, 210, 211<br />

AN/TP$lO, 191<br />

antenna mount of, 286<br />

Array, corrugated coaxial line, 303<br />

of pol yrod radiators, 303<br />

A-and-R-scope, 166<br />

ASB, 197<br />

A-scope, 164<br />

design of, 524-528<br />

ASD, 199<br />

ASD-1, 199<br />

ASE, 196<br />

ASG, 199<br />

ASH, 199<br />

Aspect function, 88<br />

ASV Mark II, 196<br />

ATR switch, 7, 407411<br />

ATR tube, 407<br />

Attenuation, by fog or cloud, 60, 62<br />

of microwaves in atmosphere, 58<br />

by rain, 61<br />

by water droplets, 60<br />

in waveguide (see Waveguide, attenua.<br />

tion in)<br />

Aural detection (see Detection, aural)<br />

Automatic frequency control, 453457<br />

(See .2s. AFC)<br />

Autosyns, 487<br />

Azimuth-pulse removal, 695<br />

B<br />

Back-bias, 459<br />

Back bombardment of magnetron cathode<br />

(see Magnetron cathode, back<br />

bombardment<br />

of)<br />

Back-of-the-dish system (see <strong>System</strong>,<br />

back-of-the-dish)<br />

Baltzer, O. J., 80<br />

Bandwidth, i-f amplifier, 444<br />

over-all, of cascaded double-tuned<br />

circuits, 448<br />

of cascaded single-tuned stages, 446<br />

of receiver (see Receiver bandwidth)<br />

Bartelink, E. H. B., 449<br />

Beacon, airborne, 246<br />

azimuth width of reply of, 256<br />

choice of frequency for, 260<br />

fixed ground, 248<br />

with ground radar, 609<br />

interrogation of, 252–260<br />

interrogation coding of, 263–264<br />

frequency, 263<br />

pulse length, 263<br />

multiple pukes, 263<br />

two-frequency interrogation, 264<br />

overinterrogation of, 265<br />

portable, 249<br />

radar, 27, 243–270<br />

general description of, 243–246<br />

use for communication, 244, 264<br />

range performance of, 254<br />

reply coding of, 264<br />

gap coding, 264<br />

range coding, 264<br />

width coding, 264<br />

side-lobe interrogation of, 257<br />

swept-frequency, 262<br />

traffic capacity of, 265–268<br />

unsynchronized replies of, 268<br />

Beacon system, radar, 24&254<br />

Beam shape, choice of, 60@604<br />

Beamwidth of antenna, 20, 271<br />

Bell Telephone Laboratories, 291, 565,<br />

664<br />

Bendix Aviation, 578, 580<br />

Blackmer, L. L,, 221<br />

Blind speeds, choice of, 654<br />

iu MT1, 650<br />

Blocklng oscillator, 502<br />

Boice, W. K., 560<br />

Breit, G., 13<br />

British Technical Mission, 15<br />

Brush, high-altitude, for rotating machines,<br />

561<br />

B-scope, 171<br />

design of, 52&532

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