Method for dissemination of multi-sensor products
AssigneeNorthrop Grumman Corporation
InventorsJohn Walter Zscheile, Jr., Bruce John Weber
Life of this patent
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Abstract
In a multi-mode dual channlel data link there is provided a method for automatically controlling or allocating a predetermined amount of power to each of the dual channels. Two diverse product signal are transmitted from a master station down link to a plurality of ground stations. The ground stations receive the diverse product signals and individually determine the integrity of each product signal and transmit the product integrity information and a station identifier back to the master station. The master station processes the integrity information and reallocates a predetermined percentage of total power to be transmitted from each of the dual channels to achieve a predetermined product integrity at one or more of the plurality of ground stations.
Claims11
A method for changing the amount of power allocated to each channel of a dual channel data link, comprising the steps of:
- allocating a percentage of total power to be transmitted in each of said channels in said data link,
- transmitting two diverse product data signals from an up link station to a plurality of down link stations,
- determining the integrity of each diverse product signal at each down link station,
- transmitting up link from each down link station a product integrity value for each product signal accompanied by a down link station identifier, and
- processing said up link product values in a link management processor to determine a minimum power allocation for one of said dual channels in said data link,
- reallocating a new percentage of total power to be transmitted in said one dual channel sufficient to supply said minimum power to a selected down link station, and
- allocating the remaining unallocated power to the other dual channel.
A method for controlling two diverse picture products, comprising the steps of:
- transmitting two picture products in the form of in-phase and quadrature data component signals from an airborne platform to a plurality of ground stations,
- receiving said data component signals at said plurality of ground stations,
- determining the inherent data quality of said data component signals at said ground stations,
- transmitting to said airborne platform from said ground stations the maximum data rate at which picture errors will not occur at the predetermined signal power level being received, and
- simultaneously adjusting the data rate and the power level of said data component signals to obtain a predetermined optimum picture quality condition for at least one of said plurality of said ground stations.
Dependencies are inferred from the claim text.