Accession Number:

AD0652800

Title:

FILTER BANDWIDTH STUDY OF AN AFC SYSTEM.

Descriptive Note:

Master's thesis,

Corporate Author:

TEXAS UNIV AUSTIN DEFENSE RESEARCH LAB

Personal Author(s):

• Davidson,William Lewis

Report Date:

1961-01-01

Pagination or Media Count:

61.0

Abstract:

Frequency rate, signal-to-noise ratio, and amplitude fluctuations--these three parameters of the reference input to a type 1, difference-frequency, AFC frequency tracking loop--cause some difficulty in choosing the tracking loop filter bandwidth. A study was made of the frequency tracking ability of a particular AFC system for various filter bandwidths. The doppler frequency of the CW radar echo from a four-motored propeller-driven aircraft is the ultimate reference input the system is required to follow. Author

Descriptors:

• *AUTOMATIC FREQUENCY CONTROL
• *BANDPASS FILTERS
• THESES
• BANDWIDTH
• SIGNAL TO NOISE RATIO
• CONTINUOUS WAVE RADAR
• RADAR REFLECTIONS
• TRACKING
• FREQUENCY
• DOPPLER SYSTEMS

Subject Categories:

• Electrical and Electronic Equipment
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE