Sensors Flashcards

1
Q

The range of all possible EM radiation

A

Electromagnetic spectrum

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2
Q

All EM waves have?

A

Frequency, wavelength, energy

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3
Q

Longest wavelength and lowest frequency of all EM energy

A

Radio

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4
Q

Good for transmitting information penetrates haze, Light rain, snow, clouds, and smoke. Ideal for data links and remote-sensing

A

Microwaves

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5
Q

Smallest wavelength of any wave

A

Gamma-rays

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6
Q

The act of receiving an RF energy return that has contacted an object

A

Detection

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7
Q

The direction relative to the location of the radar

A

Azimuth

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8
Q

The distance to the target in nautical miles

A

Range

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9
Q

The targets elevation above ground level

A

Altitude

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10
Q

The time that the radar set is transmitting the RF energy during each pulse

A

Pulse Duration

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11
Q

The period when the radar is not transmitting

A

Resting time

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12
Q

The time from the leading edge of one pulse to the leading edge of the next

A

Pulse Repetition Time

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13
Q

The number of pulse repetition times per second. Measured in Hertz

A

Pulse Repetition Frequency

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14
Q

The origin of any radar signal and operation

A

Power source

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15
Q

The heart of the radar system. It controls and times the operation of various components of a radar system

A

Synchronizer

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16
Q

A measure of how well an object can hold thermal energy

A

Thermal capacity

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17
Q

Transmit the necessary long duration, high-powered pulses needed to detect targets at a great distance away

A

Pulse radars

18
Q

Transmits a series of passes, when echoes are received the radar compares the frequency of a transmitted pulse against that of the received echo

A

Pulsed Doppler radar

19
Q

Provides a high-resolution “photo like” image of the area of interest, making possible the detection of stationary targets

A

Synthetic aperture radar

20
Q

Allows a single antenna to alternately transmit and receive

21
Q

A comparison of the meeting efficiency of a graybody with that of a perfect emitter, the blackbody

A

Emissivity

22
Q

Is the standard against which reflectance and absorption are measured

23
Q

The combination of temperature and emissivity of a body

A

Radiometric temperature

24
Q

Separates the IR energy and directs it to the IR detector

A

Beam splitter

25
Received through a turret window by a mirror lens and beam splitter
IR energy/video
26
When any form of EM energy encounters a surface that does not absorb energy
Reflection of light
27
The deviation of light from its original path because of the speed change
Refraction of light
28
Occurs when light energy passes from one medium into another causing the energy to change velocity
Refraction
29
Light containing all wavelengths of visible the spectrum
White light
30
Designed to operate over a wide range of light levels from twilight the full sun
Daylight television DTV
31
Allows the user to see in conditions much too dark for the human eye or DTV camera
Low light television LLTV
32
Fused image settings are inputted by the sensor operator through?
Menu button interface and control panel letters
33
When SO sets the ratio, the resulting videos known as?
Blended video
34
Rely on your picture quality to exploit the FMV
Imagery analysts
35
Level and gain or equivalent to brightness and contrast when viewing an?
IR image
36
When should the SO focus the picture?
Throughout the mission
37
The targeting laser in the MTS
Laser rangefinder/designator LRD
38
Used in conjunction with night vision equipment or LLTV
Laser target marker LTM
39
The maximum level of laser radiation to which a human can be exposed without adverse biological effects to the eye or skin
Maximum permissible exposure MPE
40
Are the major cause of tissue damage by a laser beam
Thermal effects
41
Non-beam hazards
Electrical, chemical, and fire