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  • Improved sensitivity performance of SWIR imager in a multispectral VIS/SWIR zoom camera for long-range surveillance tasks
    The optical coating designs of the two multispectral beam splitters for the separation of the visual (450nm – 680nm) from … … SWIR spectral wavelength range (900nm – 1700 nm) and the separation of the included laser rangefinder ( LRF ) receiver channel at 1.57nm …
  • Imaging lidars for space applications
    4.3.2 Optical , mechanical and scanner design The optical head (Fig. 6) contains the LRF optics assembly, consisting of a coaxial transmitter and receiver optics, and the scanner head, comprising a Gimbal-mounted scan mirror and the according motors and encoders.
  • Forty years of lasers at ELOP-Elbit Systems
    In the following, we dis- cuss the physical parameters that affect these specifications, and how LRFs are designed to optimize their performance within these specification. The minimum measurable range is directly affected by the need to shut the receiver during the generation of the optical pulse, because electrical noise from the pulse gen- eration and optical noise from internal reflections may reach the detector and damage it.
  • Laser range finder of the RendezVous sensor for ATV and HTV
    In order to enable this function, the LRF provides an optical laser transmitter with related control electronics, an optical la- ser receiver with a detection and measurement electronics and a power supply. The opto-electrical design is driven by the performance requirements (high dynamic range, high time measurement accuracy …
  • Advanced multi-function infrared detector with on-chip processing
    … as there is in curre nt system s that use a sepa rate LRF and the rmal … When an appropriate optical system is designed , Elop's system-analysis of the TLRF mode shows that using pulsed-lasers, similar to those currently used … … the market, gives equivalent ranges to current traditional solutions with an Avalanche Photo Detector (APD) at the receiver .
  • Airborne laser range-finder
    The airborne Laser Range-Finder ( LRF ) is a very compact unit, which is easy to integrate into … This high repetition-rate laser range-finder uses a simple, modular design consisting of transmitter, receiver , range counter and a deflection unit for the optical axis.
  • Periscope Optics And The High-Powered Laser
    It was felt that backscatter from the sawn edges of this split lens might increase the noise level at the LRF receiver to an unacceptable level. A special baffle (see Figure 6) was designed as part of the split lens mechanism to shield … 118 / SP /E Vol. 193 Optical Systems Engineering (1979 .
  • Effect of atmospheric turbulence on ranging performance of laser rangefinder
    The irradiance fluctuations, one of the effects of atmospherical optical turbulence, can be a limiting factor for pulsed LRF . … the refractive index structure parameter C', inner scale 1, laser wavelength 2 and receiver aperture size d1 … The results of our numerical simulation can provide the theoretical considerations for reasonable setting, optimal designing and .
  • RendezVous sensor for automatic guidance of transfer vehicles to the International Space Station
    The RVS Electronics Unit (RVSE) consists ofthe following functional units: LaserRangeFinder ( LRF ) 2for measuring the range including an Optical Transmitter Module (TXM), an Optical Receiver Module (RXM) and a dedicated dc/dc power converter (PWR1) Scanner Control (SC) with the modules Scanner Control … Figure 4-2 depicts the mechanical design of the RVSE unit.
  • Integration Of A CO2 Laser Range Finder With A Thermal Imager
    This design represents an inherent TPG function (TPG, time programmable gain), which is often done by electronic means in conventional LRF . The matching of the FOVs of the LRF receiver and the TI is done by the optical system shown in Fig. 3, lower left (collimating lens and imaging lens).