Abstract: A multi-static radar system provides surveillance. The radar system includes a plurality of radar receivers and a plurality of radar transmitters arranged in a multi-static configuration to form at least one radar cell to provide an area of radar coverage within the cell.

Abstract: A radar system provides information relating to a three-dimensional field of surveillance (FoS) having a volume exceeding one cubic kilometre. The radar system includes a radar transmitter and radar receiver arranged to provide persistent surveillance of the FoS. Each radar return signal received within a sequence of time periods is processed. An associated signal information is stored in a memory in association with information identifying at least one of a respective beam in which that return signal was received and a respective receiver element at which that respective return signal was received.

Abstract: A radar system provides information relating to a three-dimensional field of surveillance (FoS) having a volume exceeding one cubic kilometre. The radar system includes a radar transmitter and radar receiver arranged to provide persistent surveillance of the FoS. Each radar return signal received within a sequence of time periods is processed. An associated signal information is stored in a memory in association with information identifying at least one of a respective beam in which that return signal was received and a respective receiver element at which that respective return signal was received.

Abstract: A multi-static radar system provides surveillance. The radar system includes a plurality of radar receivers and a plurality of radar transmitters arranged in a multi-static configuration to form at least one radar cell to provide an area of radar coverage within the cell.

Abstract: A radar receiver having an antenna. The antenna has an array of antenna elements. The receiver also includes a number of processing stages including a first processing stage adapted to process radar signals received via each antenna element of the array and a second processing stage adapted to serve the first processing stage. The processing stages are each arranged substantially parallel to one another, and to the antenna substrate.

Abstract: An improved compact golf course simulates, with great realism, the drive, approach, chipping, and putting of a golf game played on a full scale course. The compact course provides the player with at least nine distinct target greens for his approach shot, each green having different sand or water hazards. The course provides the player with a plurality of chipping greens that may be played from the drive area. A common putting green containing nine holes is used to putt-out after the drives and approach shots have all been played out on the nine target greens. The target greens are designed to automatically clear balls from their surface. All drive, approach, and chip shots are taken from a common, relatively compact area. In an alternate preferred embodiment, distinctly marked putting zones are provided on the target greens and the chipping greens and for each of the holes on the common putting green.

Abstract: An improved compact golf course simulates, with great realism, the drive, approach, chipping, and putting of a golf game played on a full scale course. The compact course provides the player with at least nine distinct target greens for his approach shot, each green having different sand or water hazards. The course provides the player with a plurality of chipping greens that may be played from the drive area. A common putting green containing nine holes is used to putt-out after the drives and approach shots have all been played out on the nine target greens. The target greens are designed to automatically clear balls from their surface. All drive, approach, and chip shots are taken from a common, relatively compact area. In an alternate preferred embodiment, distinctly marked putting zones are provided on the target greens and the chipping greens and for each of the holes on the common putting green.