Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Patent
1992-09-14
1994-03-01
Wieder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
324 7624, 324 7621, 324 7631, 342195, 342196, 342162, 342 16, 364484, 364485, G06F 1531, G01R 2300
Patent
active
052911250
ABSTRACT:
An IFM (Instantaneous Frequency Measurement) receiver is disclosed that can process two simultaneous signals for electronic warfare application. Three IFM receivers are employed (cooperating in the 2 to 4 GHZ range) and have three filters in front of them. Filter 1 is a 2-4 GHz band pass receiver in front of the first receiver. In front of the second receiver is a low pass filter with a band edge at 2 GHz. In front of the third receiver is a high pass filter with the band edge at 4 GHz. In filters 2 and 3, the skirts of the filters are used rather than their pass bands. Details on the signal conditions, calculations for the frequencies, and the equations are disclosed.
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Hedge James N.
Tsui James B. Y.
Franz Bernard E.
Kundert Thomas L.
Solis Jose M.
The United States of America as represented by the Secretary of
Wieder Kenneth A.
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