초록 ▼

An incoherent ladar transmitter (12) adapted for use with synthetic aperture processing. The system (12) includes a first mechanism (44, 48, 50) for generating a laser beam (18). A second mechanism (44, 68) records phase information pertaining to the laser beam (18) and subsequently transmits the la

An incoherent ladar transmitter (12) adapted for use with synthetic aperture processing. The system (12) includes a first mechanism (44, 48, 50) for generating a laser beam (18). A second mechanism (44, 68) records phase information pertaining to the laser beam (18) and subsequently transmits the laser beam (18) from the system in response thereto. A third mechanism (40) receives a reflected version (20) of the laser beam and provides a received signal in response thereto. A fourth mechanism (72) corrects the received signal based on the phase information recorded by the second mechanism (44, 68). In a more specific embodiment, the ladar system (12) includes a synthetic aperture processor (46) for correcting the received signal based on the phase information and providing a corrected laser signal in response thereto. The synthetic aperture processor (46) includes a mechanism (76) for applying, a Discrete Fourier Transform (DFT) to the corrected laser signal to obtain high frequency resolution and cross-range resolution. A fifth mechanism (48) constructs a range-Doppler image based on the corrected laser signal and the movement of the ladar system (12).

대표청구항 ▼

An incoherent ladar transmitter (12) adapted for use with synthetic aperture processing. The system (12) includes a first mechanism (44, 48, 50) for generating a laser beam (18). A second mechanism (44, 68) records phase information pertaining to the laser beam (18) and subsequently transmits the la

An incoherent ladar transmitter (12) adapted for use with synthetic aperture processing. The system (12) includes a first mechanism (44, 48, 50) for generating a laser beam (18). A second mechanism (44, 68) records phase information pertaining to the laser beam (18) and subsequently transmits the laser beam (18) from the system in response thereto. A third mechanism (40) receives a reflected version (20) of the laser beam and provides a received signal in response thereto. A fourth mechanism (72) corrects the received signal based on the phase information recorded by the second mechanism (44, 68). In a more specific embodiment, the ladar system (12) includes a synthetic aperture processor (46) for correcting the received signal based on the phase information and providing a corrected laser signal in response thereto. The synthetic aperture processor (46) includes a mechanism (76) for applying, a Discrete Fourier Transform (DFT) to the corrected laser signal to obtain high frequency resolution and cross-range resolution. A fifth mechanism (48) constructs a range-Doppler image based on the corrected laser signal and the movement of the ladar system (12). comprising a diffuser for diffusing, randomizing and mixing the red, green and blue light components passing through said liquid crystal shutter elements. 17. The display assembly as claimed in claim 13, wherein said color adjustment assembly further comprises a polarizer. 18. The display assembly as claimed in claim 11, wherein said display surface further comprises a polarizing layer for polarizing said pulses of light conducted to said plurality of shutter rows. 19. The display assembly as claimed in claim 11, wherein said light source comprises a high intensity strobed light source. 20. The display assembly as claimed in claim 11, wherein each of said plurality of shutter rows comprises an elongated liquid crystal shutter. 21. A display assembly, comprising: a light source suitable for emitting pulses of light; a plurality of light conducting columns suitable for conducting said pulses of light received from said light source along an axis of the display assembly, each of said plurality of light conducting columns including a color filter for filtering pulses of light emitted by said light source into at least one color and a shutter element for selectively mixing light passing through said color filter element for adjusting the color of said pulses of light conducted by said conducting columns; and a plurality of shutter rows oriented generally perpendicular to said light conducting columns so as to form a plurality of display elements, said shutter rows being capable of substantially allowing or blocking transmission of said pulses of light conducted from said light source via said plurality of light conducting columns; wherein selected ones of said plurality of shutter rows are actuated in synchronization with said pulses of light emitted from said light s