Multichannel frequency and phase variable radio frequency simula

Details Multichannel frequency and phase variable radio frequency simula Multichannel frequency and phase variable radio frequency simula

1993-07-16

1997-01-28

Chin, Stephen

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

375279, 327106, 364718, H04L 2718

Patent

active

055984371

ABSTRACT:
A multichannel frequency phase variable signal source is described having particular application in the simulation of an emitter environment for testing interferometer receivers. An improved direct digital frequency synthesizer produces phase information for initiating the operation of a related frequency synthesizer at a different phase point from those of the remainder of the synthesizers forming the multi channel source. An improved direct digital frequency synthesizer is described for varying this phase information.

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patent: 5027372 (1991-06-01), Weng

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