DOPPLER DROPOUT COMPENSATING SIGNAL CONDITIONING CIRCUIT

摘要

A dropout compensating signal conditioning circuit (10) especially well suited for conditioning signals utilized in doppler shift monitoring apparatus. The circuit (10) includes phase-locked loop (32) responsive to an input signal at (30) for generating a second signal at (44) of a frequency substantially directly proportional to the input signal. This circuit (10) provides an output on line (75) which tracks the input at (12) with great precision and is free from the occasional absence of one or more periods of the input signals, which is known as dropout.