OUTPUT CHARACTERISTICS OF BANDPASS LIMITER AND NONLINEAR AMPLIFIER FOR NOISELIKE SIGNAL IN BACKGROUND NOISE.

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Mizuno, Toshio
Morinaga, Norihiko
Namekawa, Toshihiko
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BANDPASS LIMITERS - NONLINEAR AMPLIFIERS - WHITE GAUSSIAN NOISE;
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The response of a nonlinear device whose input-output characteristic is represented by an error function is analyzed for a noiselike input signal from two viewpoints. One viewpoint is to utilize the device as a limiter in an angular-modulation system, and the other is to utilize it as a common nonlinear amplifier for multiple carrier waves, such as used in satellite repeater systems. Generalized expressions for the input-output characteristics in these two applications are derived. Then the improvement in carrier-to-noise ratio is discussed for the limiter and the effect of undesired output, including the overall distortion of the multiple carrier wave, is discussed for the amplifier.
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页码:45 / 53
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