Method and apparatus for signal processing

Details Method and apparatus for signal processing Method and apparatus for signal processing

1989-05-25

1989-12-26

Kemeny, Emanuel S.

Boots, shoes, and leggings

36472401, 358138, G01R 2316

Patent

active

048902373

ABSTRACT:
A signal processing system for a spectrum analyzer presents a three-dimensional display of a signal in the form of a display of an independent variable, such as frequency, versus a selected property of the signal, such as power, where the selected property is represented as a distribution of values for each independent variable interval in the form of intensity variation on the display. The independent variable is divided into m slots, and the selected property is sampled k times for each slot. A histogram for each slot is built up in a buffer representing the number of samples occurring at each of n power levels. The histogram is transferred to a display memory column by column for each slot, and after all the slots have been processed the display memory is read out onto a display device, such as a CRT, in a raster scan format with the intensity of each pixel element being a function of the number or samples at that power level within that frequency interval.

REFERENCES:
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patent: 4310887 (1982-01-01), Suau
patent: 4335276 (1982-06-01), Bull et al.
patent: 4471435 (1984-09-01), Meisner
patent: 4665494 (1987-05-01), Tanaka et al.

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