Abstract: A method of dynamic position determination using a Kalman Filter to estimate a position of a moving aided node, including assigning a predicted value to each of twelve state variables for the aided node, weighting the accuracy of each prediction, determining a measurement for each state variable using a far source navigation algorithm, and then updating each state variable value using the measurement. A method for dynamic position determination that includes locating a moving aided node and one or multiple aiding nodes within a region of interest, and identifying one or multiple visible far sources. The aiding nodes and visible far sources are down selected using a set of metrics for evaluating the suitability of the aiding nodes and far sources, or pairs thereof, for use in developing a position of the aided node using a far source navigation algorithm.

Abstract: Two receivers located within a region of interest that is sufficiently small as compared to a distance to a source of a signal can be considered a “point”. Signals received at that “point” are planar. Accordingly, any difference in the time of arrival of a signal from the source by one receiver as compared to another receiver located within that region stablishes a locus of points representing a distance between the receivers perpendicular to the vector pointing to the source. Using signals from multiple far sources multiple loci on which one receiver must exist as compared to the other receiver can be identified. The convergence of these loci identifies a relative position of one receiver from the other, and when the geospatial position of one receiver is known, so too is the position of the other receiver.

Abstract: A system and method for evaluating the interactivity of RF devices in a virtual RF environment having selective virtual spectrum users remotely controlled by a web browser, where the virtual spectrum users have selectable interactivity parameters, and the virtual RF spectrum can be selectively changed, and the performance of the virtual spectrum users is evaluated and assigned scores as a function of the evaluation to determine which virtual spectrum user receives the highest amount of points.

Abstract: A system and method for evaluating the interactivity of RF devices in a virtual RF environment having selective virtual spectrum users remotely controlled by a web browser, where the virtual spectrum users have selectable interactivity parameters, and the virtual RF spectrum can be selectively changed, and the performance of the virtual spectrum users is evaluated and assigned scores as a function of the evaluation to determine which virtual spectrum user receives the highest amount of points.

Abstract: A system and method for evaluating the interactivity of RF devices in a virtual RF environment having selective virtual spectrum users remotely controlled by a web browser, where the virtual spectrum users have selectable interactivity parameters, and the virtual RF spectrum can be selectively changed, and the performance of the virtual spectrum users is evaluated and assigned scores as a function of the evaluation to determine which virtual spectrum user receives the highest amount of points.

Abstract: A system and method for evaluating the interactivity of RF devices in a virtual RF environment having selective virtual spectrum users remotely controlled by a web browser, where the virtual spectrum users have selectable interactivity parameters, and the virtual RF spectrum can be selectively changed, and the performance of the virtual spectrum users is evaluated and assigned scores as a function of the evaluation to determine which virtual spectrum user receives the highest amount of points.