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Radar System Engineering

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INDEX 747<br />

Signal, interference of, 73<br />

minimum detectable, 2S47<br />

minimum discernible, 34<br />

Signal Corps Laboratories, 14<br />

Signrd fluctuations due to scanning, &&&<br />

646<br />

Signal loss caused by MTI, 651<br />

Single-tuned circuit, 445<br />

Skiatron, 220, 483<br />

Skin depth, 406<br />

Slug-tuned coil, 442<br />

SM, 188<br />

Spark gap, rotary, 381<br />

Specular cross section, 69<br />

Speed control, of motor-alternator sets,<br />

574<br />

motor-, electronic, 578<br />

of motor, by voltage generator, 574<br />

tuned-circuit, for motors, 577<br />

Speed governor, carbon-pile, 578<br />

Speed regulator, for aircraft motor-alternators,<br />

571–578<br />

motor-, Lee, 574<br />

Spencer, R. C., 68<br />

Stabilization, 304–312<br />

airborne antenna, 30$308<br />

frequency, of various components (see<br />

varioue components)<br />

ehipborne antenna, 30%312<br />

Stabilizer, airborne, errors in, 308<br />

line-of-sight, 30&308<br />

roll, 306<br />

shipborne, accuracy of, 311<br />

stable-base, 306<br />

Stagger damping, 449<br />

Stagger-tuned circuits, 448<br />

Standing waves, 391<br />

Standing-wave ratio, power, 392<br />

voltage, 392<br />

Storage gain (see Gain, storage)<br />

Storage tube, as delay device, 631<br />

Storm echo (see Echo, from storm)<br />

Straight line charging, 383<br />

Strapped magnetron (see Magnetron,<br />

strapped)<br />

Stratton, J. A., 64<br />

Straus, H. A., 295<br />

Structures, radar signals from, 99<br />

Stub support, broadband, 395<br />

Subcarrier, phase-shifted, 695<br />

Subcarner method, 684<br />

Superposition, optical, of indicator scales,<br />

218<br />

Superrefraction, 55<br />

Switch (see ATR, Rf, TR, etc.)<br />

pulser (see Pulser switch)<br />

Switch tubes, high-vacuum, for prdsers,<br />

368<br />

Synchronization, 51g524<br />

incremental angle, method of, 689–695<br />

jittered-pulse system of, 693<br />

phase-shift method of, 69$701<br />

Synchronization methods for radar relay,<br />

comparison of, 71 1–713<br />

Synchronizer, radar relay, 681<br />

Synchros, 487<br />

Synchroscope, 164<br />

<strong>System</strong>, back-of-the-dish, 419<br />

radar (see <strong>Radar</strong> system)<br />

Targets, complex, 73, 7$81<br />

T<br />

compound, 73, 81<br />

extended surface, 85<br />

Teleran, 240<br />

Temperature, noise, of crystal (see Crystal,<br />

noise temperature of)<br />

Test equipment for MTI, special, 677–<br />

679<br />

Thyratron, hydrogen, 379<br />

Time base, 162<br />

Time-sharing method, 684<br />

Timing markers, discrete, 52&522<br />

TR switch, 7, 407411, 420<br />

TR tube, 407<br />

prepulsing of, 607<br />

Tracking, automatic angle, 207-210<br />

regenerative, of pulses, 707<br />

Tracking circuit, locking in of, 710<br />

Transducers, electromechanical, 667<br />

Transformer, jog, 295<br />

(see also type of transformer)<br />

Transmission, c-w, of sine and cosine,<br />

703-711<br />

data (see Data transmission)<br />

pulse, of sine and cosine, 704<br />

Transmit-receive switch (see TR switch)<br />

Tranemit-receive unit, 420<br />

Transmitter, data (see Data transmitter)<br />

Transponders, 246<br />

Trapping, 56-58

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