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Assignment Questions - 14190_184
Assignment Questions - 14190_186

Neets Module 18-Radar Principles
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5 1-39.   In a monopulse scanning system, which of the following feedhorn signal combinations makes up the bearing signal? 1.     (A + D) - (A + C) 2.     (A + B) - (C + D) 3.     (A + C) - (B + D) 4.     A + B + C + D 1-40.   In a monopulse scanning system, which of the following combinations make up the range signal? 1.     (A + D) - (A + C) 2.     (A + B) - (C + D) 3.     (A + C) - (B + D) 4.     A + B + C + D 1-41.   Monopulse receivers use what signal as a phase reference? 1.     Range 2.     Traverse 3.     Elevation 4.     Angle-tracking 1-42.   In the cw radar transmission method, the Doppler effect provides which of the following target information? 1.     Speed of the target 2.     Presence of the target 3.     Both 1 and 2 above 4.     Relative bearing of the target 1-43.   The frequency of the returned signal increases when a target is approaching and decreases when a target is moving away in which of the following types of radar systems? 1.     Search 2.     Doppler 3.     Pulse-modulation 4.     Frequency-modulation 1-44.   Continuous-wave radar that uses the Doppler effect is best used in detecting which of the following types of targets? 1.    Stationary 2.    Past-moving 3.    Targets with a high degree of range resolution 4.    Targets with a high degree of bearing resolution 1-45.   Range information can be obtained in a Doppler radar by which of the following methods? 1.     Sweeping the transmitter frequency 2.     Using two separate transmitters 3.     Both 1 and 2 above 4.     Using two separate antennas 1-46.   Frequency-modulated radars transmit a wave that continuously changes in frequency about a center frequency. Using frequency modulation, the range to a target is determined by using which of the following methods? 1.     By comparing the frequency of the transmitted signal with the returned frequency from the target 2.     By comparing the magnitude of transmitted pulses with the magnitude of returned pulses 3.     By comparing the velocity of the received energy with the velocity of the transmitted energy 4.     By measuring the Doppler shift that occurs in the returning signal






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