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A new role is suggested for the amplitude limiter in FM receivers. By spreading out the spectrum which is necessary for the reproduction of the FM disturbance that is caused by the interference, the limiter makes it possible for a filter to reject an important portion of this spectrum without substantially affecting the spectrum that carriesthe message(More)
In this project, we are concerned with a variety of problems in modulation and communication. We are currently engaged in studies relating to: 1. Advancing the techniques of separating signals by means of simple economical methods so that the use of guard bands between assigned frequency channels can be dispensed with. 2. Increasing the range and(More)
The convergence properties of the Carson and Fry and of the van der Pol-Stumpers expansions for the complex amplitude of the steady-state response of a filter to an FM excitation are discussed. The theory of quasi-stationary analysis and of FM-to-AM conversion with low distortion is presented. The use of Taylor's formula leads to error estimates and to a(More)
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