Describe the operation of a Whiskbroom Scanner with the help of a diagram ? Explain how it is different from pushbroom scanner ?

Whiskbroom Scanner and it operation: The whiskbroom scanner is made up of a rotating mirror and a single detector. The mirror is so oriented that when it completes a rotation, the detector sweeps across the field of view between 90° and 120° to obtain images in a large number of narrow spectral bands ranging from visible to middle infrared regions of the spectrum. The total extent of the oscillating sensor is known as the Total Field of View (TFOV) of the scanner. While scanning the entire field, the sensor's optical head is always placed at a particular dimension called the Instantaneous Field of View (IFOV) figure depicts the scanning mechanism of whiskbroom scanner. The push broom scanner consists a large number of ditietois which are equivalent to the number obtained by dividing the swath of the season. Whiskbroom scanner is made up of relating mirror and single dictator.

Whiskbroom Scanners