My speciality. Овчинникова Т.Е - 40 стр.

techniques. The ability to distinguish between successive pulses emitted by the
transmitter also can be used to overcome range-velocity ambiguity restriction.

       Notes to the text

range velocity ambiguity restriction — неопределенность в определении
дальности по скорости
signal to noise ratio — отношение сигнала к шуму
rather than — а не
noise pulse repetition periods — импульсно-шумовые периоды повторения
counter measure deception techniques—счетно-измерительные маскировочные
методы

      2.13.10 Translate the word-combinations

coherent radar, detection of moving targets, search and tracking in the atmosphere,
frequency of the returns, velocity information, signal to noise ratio, volumetric search,
fire control radars, microwave power amplifier tube, power handling ability, coded
signals, matched radar system, noise pulse repetition periods, counter measure
deception techniques, range velocity ambiguity restriction, jamming.

      2.13.11 Answer the questions

1. What are coherent radars used for? 2. What does the use of coherent radars show? 3.
What is necessary to determine by means of two operations? 4. What devices must
radar use for obtaining coherence? 5. In what way do these tubes surpass
magnetrons? 6. Is radar using a chain of these tubes simple or complicated? 7. What
are primary factors for application coherent radars? 8. How can the coding vary? 9. What
makes each radar transmission more unique? 10. What can be used to overcome
range velocity ambiguity restriction?

      2.13.12 Translate the sentences, pay attention to the words with the suffix -
ing

1. Coherent radars having been produced, we can use them in ground mapping,
detection, moving targets on the ground and so on. 2. Having obtained coherence
with radars using magnetron transmitters scientists were convinced in their ability of
surpassing magnetrons. 3. Coherent radars continued to be used in engineering, all
their problems having not been solved. 4. Having learned the common characteristic of
new radars we can use them successfully. 5. A common feature of a new radar is the
detection system for decoding in the receiver.

      2.13.13 Translate the sentences pay attention to the word-combinations in
thick print

1.Use is made of coherent radars in ground mapping, detection of moving targets,
etc. 2. All the problems connected with the operational use of coherent radars are of