2. Image Acquisition
Antennas And Optics — Quiz
Test your understanding of antennas and optics with 5 practice questions.
Practice Questions
Question 1
Which optical phenomenon causes the spreading of light waves as they pass through an aperture or around an obstacle, limiting the ultimate resolution of optical sensors?
Question 2
In the context of active remote sensing, if the effective isotropic radiated power (EIRP) of a radar system is quadrupled, how does this affect the signal-to-noise ratio (SNR) of the received signal, assuming all other factors remain constant?
Question 3
What is the primary determinant of the angular resolution of an antenna in an active remote sensing system?
Question 4
Which of the following describes the Nyquist criterion in the context of digital image sampling in remote sensing?
Question 5
How does an increase in the focal length of an optical sensor affect its Instantaneous Field of View (IFOV) and consequently its spatial resolution, assuming a constant detector size?