Abstract:
A scanner system. The system includes a mirror assembly having multiple reflective surfaces arranged to form one polygonal shape about an axis. A plurality of the multiple surfaces are each positionable to reflect radiation propagating from the source at a reflective angle and a position on the reflective surface to direct the radiation along a transmit path. When one reflective surface is so positioned, another surface is positioned to receive and reflect radiation along a detector signal path for processing. According to a related method for acquiring image data a mirror assembly is provided with multiple reflective surfaces sequentially arranged to form a polygonal shape about an axis. A beam of radiation is reflected from a first of the reflective surfaces and along a path in a first direction to a target region and a return signal propagates along the path in a second direction away from the target region. A portion of the return signal is reflected from a surface of a second of the reflective surfaces of the mirror assembly and along a path to a detector.
Abstract:
System and method for remotely sensing the cross-flow orientation of a fluid (including a gaseous fluid) over an extended range. A Fourier transform of beam wander of a single beam can be used to determine the orientation of the flow field. Many applications depend upon accurate flow orientation data to provide correct information such as, for example, citing of turbines on wind farms and atmospheric/ocean weather prediction.
Abstract:
System and method for remotely sensing the cross-flow orientation of a fluid (including a gaseous fluid) over an extended range. A Fourier transform of beam wander of a single beam can be used to determine the orientation of the flow field. Many applications depend upon accurate flow orientation data to provide correct information such as, for example, citing of turbines on wind farms and atmospheric/ocean weather prediction.
Abstract:
An imaging or sensor system comprises a transmitter assembly, a receiver assembly and a control unit. The transmitter assembly defines an outgoing optical beam transmission path with respect to a target surface and the receiver assembly defines a return optical signal transmission path from the target surface. Each of the paths includes transmission through or reflection from at least one microdisplay device comprising a plurality of controllable elements for selective placement in a transmit mode for transmission of light along the transmission paths. A control unit selectively places the microdisplay device elements in the transmission mode.
Abstract:
An imaging or sensor system comprises a transmitter assembly, a receiver assembly and a control unit. The transmitter assembly defines an outgoing optical beam transmission path with respect to a target surface and the receiver assembly defines a return optical signal transmission path from the target surface. Each of the paths includes transmission through or reflection from at least one microdisplay device comprising a plurality of controllable elements for selective placement in a transmit mode for transmission of light along the transmission paths. A control unit selectively places the microdisplay device elements in the transmission mode.
Abstract:
An omnidirectional imaging system includes a housing have at least one transparent portion, a light source configured to produce emitted light, a transmitter configured to direct the emitted light outward of the housing through the at least one transparent portion at a 360 degree scanning angle range measured about an axis, and a receiver configured to receive the emitted light. The receiver is configured to receive the emitted light and generate a cylindrical 3D point cloud centered along a path of motion of the housing, wherein the housing moves along the axis of rotation of the emitted light.
Abstract:
A sensing system is provided that includes a transmitter assembly with a light source and a microdisplay device, wherein the transmitter assembly defines an optical beam transmission path to provide illumination of a substantially one-dimensional (1D) region of a target area, the microdisplay device comprising a plurality of controllable elements for causing the illumination to be a substantially 1D pattern of light along the 1D region. The system further includes a receiver assembly for defining a return optical signal transmission path from the 1D region and collecting return optical signals from the 1D region. The system also includes a processing component for generating sensor information associated with the 1D region by processing the return optical signals from the 1D region with return optical signals from adjacent 1D regions using a distributed compressive sensing (DCS) technique.
Abstract:
A sensing system is provided that includes a transmitter assembly with a light source and a microdisplay device, wherein the transmitter assembly defines an optical beam transmission path to provide illumination of a substantially one-dimensional (1D) region of a target area, the microdisplay device comprising a plurality of controllable elements for causing the illumination to be a substantially 1D pattern of light along the 1D region. The system further includes a receiver assembly for defining a return optical signal transmission path from the 1D region and collecting return optical signals from the 1D region. The system also includes a processing component for generating sensor information associated with the 1D region by processing the return optical signals from the 1D region with return optical signals from adjacent 1D regions using a distributed compressive sensing (DCS) technique.
Abstract:
A scanner system. The system includes a mirror assembly having multiple reflective surfaces arranged to form one polygonal shape about an axis. A plurality of the multiple surfaces are each positionable to reflect radiation propagating from the source at a reflective angle and a position on the reflective surface to direct the radiation along a transmit path. When one reflective surface is so positioned, another surface is positioned to receive and reflect radiation along a detector signal path for processing. According to a related method for acquiring image data a mirror assembly is provided with multiple reflective surfaces sequentially arranged to form a polygonal shape about an axis. A beam of radiation is reflected from a first of the reflective surfaces and along a path in a first direction to a target region and a return signal propagates along the path in a second direction away from the target region. A portion of the return signal is reflected from a surface of a second of the reflective surfaces of the mirror assembly and along a path to a detector.