For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length loch is_____________?
A. 130 km
B. 230 km
C. 250 km
D. 500 km
Elements of Remote Sensing
Which on speed C. of the electromagnetic wave is correct ?
Which on speed C. of the electromagnetic wave is correct ?
A. C = v
B. C = /v
C. C = v
D. C = 1/
Which one of the following frequency regions is a part of sun’s radiation ?
Which one of the following frequency regions is a part of sun’s radiation ?
A. Ultraviolet frequency region
B. Infrared frequency region
C. Radio frequency region
D. All of these
Which one of the following geometric errors of satellite sensors is random ?
Which one of the following geometric errors of satellite sensors is random ?
A. Scan skew
B. Panoramic distortion
C. Earth rotation
D. Altitude variation
The value of energy quantum for radiation of any frequency is proportional to________________?
The value of energy quantum for radiation of any frequency is proportional to________________?
A. The frequency
B. The reciprocal of the energy
C. The square of the frequency
D. The square root of the frequency
The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is_______________?
The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is_______________?
A. 8
B. 12
C. 16
D. 24
Pick up the important characteristic of a target which facilitates its identification from the following ?
Pick up the important characteristic of a target which facilitates its identification from the following ?
A. Spectral variation
B. Spatial variation
C. Temporal variation
D. All of these
Earth observations from a satellite platform provide____________?
Earth observations from a satellite platform provide____________?
A. Synoptic view of a large area
B. Constant solar zenith angles and similar illumination conditions
C. Repetitive observations of the same area with intervals of a few minutes to a few weeks
D. All of these
DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within___________________?
DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within___________________?
A. 25 km
B. 50 km
C. 75 km
D. 100 km
Electromagnetic radiation_______________?
Electromagnetic radiation_______________?
A. Produces a time varying magnetic field and vice versa
B. Once generated, remains self-propagating
C. Is capable to travel across space
D. All of these