Thermal Noise Errors in DF Monopulse Systems Having Log Amplifiers |
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Authors: | Poe G Chiu C |
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Institution: | Autonetics, Anaheim, CA 92803; |
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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. |
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