Title :
Thermal Noise Errors in DF Monopulse Systems Having Log Amplifiers
Author :
Poe, G. ; Chiu, C.
Author_Institution :
Autonetics, Anaheim, CA 92803
Abstract :
An analysis of the effects of thermal noise on the accuracy of direction finding (DF) monopulse systems which employ logarithmic amplifiers is presented. Numerical results are presented which indicate that a simple model may be used to compute rms thermal errors for a wide range of signal levels. Analytical results obtained in the limit of large signal-to-noise ratios are compared with standard results used to analyze monopulse systems employing automatic gain control (AGC) circuitry instead of log amplifiers.
Keywords :
Circuit noise; Filters; Fluctuations; Gain control; Gaussian noise; Navigation; Pulse amplifiers; Pulse circuits; Signal analysis; Signal to noise ratio;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.1976.308256