Spectrum analyzer with multiple operational modes

Details Spectrum analyzer with multiple operational modes Spectrum analyzer with multiple operational modes

1976-09-16

1977-10-18

Malzahn, David H.

Boots, shoes, and leggings

324 77D, 364715, G06F 1534

Patent

active

040547850

ABSTRACT:
Disclosed is a fully digital spectrum analyzer which includes a digital frequency translator that makes it possible to effectively analyze frequency bands that do not start at zero frequency. With the translator, the available spectral lines can be within the band of interest and not wasted in the range from zero frequency to the start of the band, and as a result the band is examined at optimal resolution. The translation takes place after the signal to be analyzed has been digitized, and the translator time-shares much of the conventional circuitry of the spectrum analyzer, to thereby minimize the cost of translation. Additionally, the spectrum analyzer includes an analog network that reduces the frequency of very fast signals so they can be analyzed by a spectrum analyzer having a relatively low upper frequency limit.

REFERENCES:
patent: 3737900 (1973-06-01), Yehrs, Jr.
patent: 3932737 (1976-01-01), Delepine
patent: 3935437 (1976-01-01), Schmitt

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