Abstract: An aerial drone or unmanned aerial vehicle (UAV) is provided for radar calibration testing. The drone includes an airframe including a fuselage with nose and tail, wings and elevators. The drone includes at least one antenna attached to the airframe, as well as a signal adapter coupled to the antenna to receive impinging radar signals and transmit an electromagnetic (EM) field that effectively cancels or combines with the scattered field of the drone, depending upon the adapter's mode of operation. In the first mode of operation, the adapter transmits an EM field that has an opposite phase to the drone's scattered field thereby reducing the radar cross-section of the drone. In the second mode, the adapter transmits an EM field that is in-phase with the scattered field thereby increasing the radar cross-section of the drone.

Abstract: A human-portable modular system is provided for remotely controlling an automotive vehicle by an operator physically unconnected thereto. For a typical vehicle, the system includes a radio control transmitter that sends command signals from the operator, a pedal control assembly, a steering control assembly, an electronics case disposable on the driver's seat, coupling mechanisms that respectively connect said assemblies to the electronics case, and a package for stowing and transporting the transmitter, the electronics case, and the assemblies. The pedal control assembly includes a linkage arm, an actuator pivotably connected to the linkage arm at its proximate end, and first and second arms pivotably connected to the linkage arm to controllably push the respective control pedals for acceleration and braking. The steering control assembly includes a motor that provides torque, and an attachment that couples the motor to the vehicle's steering wheel.

Abstract: A modular system for remotely controlling an automotive vehicle is provided. The system issues commands responsive to a radio control transmitter, which controls the vehicle by its steering device and respective control pedals for acceleration and braking. The system includes a steer linkage, a steering motor, a pedal linkage, a linear actuator, a radio receiver, and a digital motor controller. By employing a chain pulley, the steer linkage removably attaches to and controllably rotates the steering device. The steering motor conveys torque to the steer linkage. The pedal linkage removably connects to and pushes against at least one of the control pedals using pinned moment levers. The linear actuator transmits force to the pedal linkage. The pedal linkage may be removably mounted on a linkage platform. The radio receiver receives command signals from the transmitter and communicates with the steering motor and the linear actuator via the digital motor controller.

Abstract: An unmanned floating platform is provided for continual surveillance at a station-keeping position at sea. The platform is equipped to dispatch an unmanned vehicle to conduct at least one of observation and rendezvous. The platform includes a hull, first and second hangers, and a liquid storage compartment. The hull has a submerged portion and a floating portion. The first hanger is equipped for stowing, deploying and retrieving a self-propelled unmanned vehicle and is substantially disposed in the floating portion. The second hanger houses equipment for electrical power and on-board functions. The liquid storage compartment supplies fuel to the on-board equipment and to the unmanned vehicle. For static stability, the compartment is disposed in the submerged portion. The platform may also include a superstructure for housing sensor equipment. The superstructure can be disposed above at least one of the first and second hangers. The second hanger may additionally house a tetherable observation aerial post.