EIRP statistical calculation method
First Claim
1. In a system for providing data content to and from a plurality of mobile platforms, each of the mobile platforms transmitting a return link having an EIRP to a predetermined location via a satellite-mounted transponder, a method for controlling an EIRP of the aggregate return link emissions of the mobile platforms, the method comprising the steps of:
- determining a probability distribution of the EIRP of the return link for each of the mobile platforms;
determining a probability distribution of the EIRP for the aggregate return link emissions using the probability distributions of the EIRP of the return link for each of the mobile platforms; and
determining an aggregate off-axis EIRP density envelope for a predetermined probability level and the probability distribution of the EIRP for the aggregate return link emissions.
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Abstract
In a system for providing data content to and from a plurality of mobile platforms where each of the mobile platforms transmits a return link having an EIRP to a predetermined location via a satellite-mounted transponder, a method for controlling an EIRP of the aggregate return link emissions of the mobile platforms. The method includes the steps of determining a probability distribution of the EIRP of the return link for each of the mobile platforms; and determining a probability distribution of the EIRP for the aggregate return link emissions using the probability distributions of the EIRP of the return link for each of the mobile platforms; determining an aggregate off-axis EIRP density envelope for a predetermined probability level and the probability distribution of the EIRP for the aggregate return link emissions.
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Citations
20 Claims
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1. In a system for providing data content to and from a plurality of mobile platforms, each of the mobile platforms transmitting a return link having an EIRP to a predetermined location via a satellite-mounted transponder, a method for controlling an EIRP of the aggregate return link emissions of the mobile platforms, the method comprising the steps of:
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determining a probability distribution of the EIRP of the return link for each of the mobile platforms;
determining a probability distribution of the EIRP for the aggregate return link emissions using the probability distributions of the EIRP of the return link for each of the mobile platforms; and
determining an aggregate off-axis EIRP density envelope for a predetermined probability level and the probability distribution of the EIRP for the aggregate return link emissions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 20)
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12. In a system for providing data content to and from a plurality of mobile platforms, each of the mobile platforms transmitting a return link having an EIRP to a predetermined location via a satellite-mounted transponder, a method for controlling an EIRP of the aggregate return link emissions of the mobile platforms, the method comprising the steps of:
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determining a probability distribution of the EIRP of the return link for each of the mobile platforms;
scaling each of the EIRP of the return link probability distributions by a scaling fraction that is equal to the actual EIRP of the return link divided by the peak EIRP of the return link;
determining a probability distribution of the EIRP for the aggregate return link emissions using the probability distributions of the EIRP of the return link for each of the mobile platforms; and
determining an aggregate off-axis EIRP density envelope for a predetermined probability level and the probability distribution of the EIRP for the aggregate return link emissions; and
controlling the mobile platforms such that the EIRP of the aggregate return link emissions is within the aggregate off-axis EIRP density envelope at the predetermined probability level.
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19. In a system for providing data content to and from a plurality of mobile platforms, each of the mobile platforms transmitting a return link having an EIRP to a predetermined location via a satellite-mounted transponder, a method for controlling an EIRP of the aggregate return link emissions of the mobile platforms, the method comprising the steps of:
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determining a probability distribution of the EIRP of the return link for each of the mobile platforms, each of the probability distributions being determined numerically through a plurality of Monte Carlo trials;
scaling each of the EIRP of the return link probability distributions by a scaling fraction that is equal to the actual EIRP of the return link divided by the peak EIRP of the return link;
determining a probability distribution of the EIRP for the aggregate return link emissions using the probability distributions of the EIRP of the return link for each of the mobile platforms;
determining a mean value of the aggregate off-axis EIRP probability;
determining a standard deviation of the aggregate off-axis EIRP probability;
calculating a probability distribution of an aggregate off-axis EIRP density envelope by adding the mean value to the product of the standard deviation and a predetermined value that is associated with a predetermined probability level; and
controlling the mobile platforms such that the EIRP of the aggregate return link emissions is within the aggregate off-axis EIRP density envelope at the predetermined probability level.
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Specification