How many separate channels does a monopulse receiver have?

How many separate channels does a monopulse receiver have?

• A. One
• B. Two
• C. Three
• D. Four

Answer: (C)

Monopulse angle estimation works by forming multiple reference patterns from the received signal at the same time and comparing them to determine target position. To do this efficiently, the receiver processes the signal in three independent paths: a sum channel that combines all array elements to form the main beam, an azimuth-difference channel that provides an error signal across azimuth, and an elevation-difference channel that provides an error signal across elevation. The sum channel establishes the baseline, while the two difference channels translate the relative signal strength into precise angular errors in the two axes. With these three channels, you can compute the target’s azimuth and elevation in real time from a single pulse. Additional channels are unnecessary for the basic angle measurement, though they might be added for extra capabilities like polarization or range processing.

Monopulse angle estimation works by forming multiple reference patterns from the received signal at the same time and comparing them to determine target position. To do this efficiently, the receiver processes the signal in three independent paths: a sum channel that combines all array elements to form the main beam, an azimuth-difference channel that provides an error signal across azimuth, and an elevation-difference channel that provides an error signal across elevation. The sum channel establishes the baseline, while the two difference channels translate the relative signal strength into precise angular errors in the two axes. With these three channels, you can compute the target’s azimuth and elevation in real time from a single pulse. Additional channels are unnecessary for the basic angle measurement, though they might be added for extra capabilities like polarization or range processing.