Abstract: A method of incrementally increasing a revenue stream generated by an incrementally built satellite communication system comprising the following steps: (A) planning an initial constellation phase of the satellite communication system to cover an initial predetermined coverage area; (B) building the initial number of satellites for the initial constellation phase of the satellite communication system; (C) launching each satellite to fill the initial constellation phase of the satellite communication system; and (D) collecting an initial revenue stream generated by the initial constellation phase of the satellite communication system. The initial constellation phase of the satellite communication system comprises an initial number of satellites and is substantially completed to carry an initial communication traffic for the initial predetermined coverage area. The initial revenue stream can be used for building the subsequent phase of the planned satellite communication system.

Abstract: A radar system is described for use in vehicular applications. The radar system is particularly suited to backup warning systems and lane-change warning systems. The radar minimizes many of the problems found in the prior art by providing programmable delays and programmable gain. The radar uses a range search algorithm to detect and sort targets at various ranges within the field of view of the radar. Each target range corresponds to a particular delay and gain setting. The radar searches for targets at the various ranges by running a target search algorithm. For each target range, the search algorithm causes the proper time delay and gain setting. Targets within the selected range are detected and catalogued. Speed of the targets is obtained through Doppler processing. A display is used to warn the driver of the vehicle of the presence of targets at the various ranges. The warning may be visual and/or audible.