Noise generator having variable bandwidth and center frequency

Details Noise generator having variable bandwidth and center frequency Noise generator having variable bandwidth and center frequency

1982-08-23

1984-10-02

Grimm, Siegfried H.

Oscillators

Electrical noise or random wave generator

331 39, H03B 2900

Patent

active

044750900

ABSTRACT:
A noise source is coupled through a first bandpass filter to a first mixer to which a first local oscillator signal is applied. The output of the first mixer is coupled through a second bandpass filter to a second mixer to which a second local oscillator signal is applied. At the output of the second mixer is obtained a noise signal having a bandwidth that can be varied by varying the frequency of the first local oscillator, and having a center frequency that can be varied by varying the frequency of the second local oscillator.

REFERENCES:
patent: 2960664 (1960-11-01), Brodwin
patent: 3586993 (1971-06-01), Buck

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