172328 ⎘
Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves; Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically Star trackers
STAR SENSOR OPTICAL SYSTEM AND STAR SENSOR
#2CALIBRATION OF REFLECTIVE SURFACE POSITIONING USING LIGHT BEAM ALIGNMENT TO DISTANT REFERENCE OBJECTS
#3SYSTEM AND METHOD FOR VIBRATION SUPPRESSION OF STAR SIMULATION SYSTEM BY MEANS OF LASER INTERFERENCE DETECTION
#4ANALYZING ELECTRO-OPTICAL IMAGE
#5Maneuvering of satellites without rate sensors
#6Method and Astrophotographic Apparatus for Acquiring Images of Targets in Sky Area
#7METHOD OF FULLY AUTONOMOUS GEOMETRIC CALIBRATION FOR LINEAR-ARRAY REMOTE SENSING SATELLITES
#8Method for correcting pointing errors of biaxial rotation system based on spherical cap function
#9Stellar atmospheric refraction measurement correction method based on collinearity of refraction surfaces
#10SATELLITE MODULE FOR ATTITUDE DETERMINATION
#11Single star-based orientation method using dual-axis level sensor
#12Off axis guider with one or more mechanically controlled prisms for astronomical telescopes, methods of assembly and use for telescopes
#13Direct sun imaging star tracker
#14OPTICAL COMMUNICATION NETWORK FOR PICO SATELLITES
#15OPTICAL BAFFLE
#16Compact star tracker with photonic crystal pointing
#17High precision—automated celestial navigation system
#18Electronic polar alignment for astronomical instrument
#19Photonic imaging array
#20Device for locating a target by stellar correction, intended to be on board a mobile carrier
#21System and method for multi-sensor multi-target 3D fusion using an unbiased measurement space
#22Zero optical path difference phased array for determining a direction of an incoherent optical source
#23Celestial navigation system
#24Systems and methods for determining position of an object relative to a vehicle
#25Systems and methods for northfinding
#26Sliced lens star tracker
#27SMART DOWNLOADING OF SENSING DATA IN REMOTE SENSING SYSTEMS
#28Through-cloud celestial sighting system
#29Risley prism based star tracker and celestial navigation systems
#30Celestial navigation using laser communication system
#31Polar axis calibration system, electronic polar scope, polar axis calibration control device, and equatorial instrument and telescope comprising the same
#32Method for adjusting an equatorial or altazimuth mount
#33Photonic imaging array
#34Position determination by observing a celestial object transit the sun or moon
#35System and method for multi-sensor multi-target 3D fusion using an unbiased measurement space
#36Image pickup apparatus having function of generating simulation image,control method therefor, and storage medium
#37Tracking device for portable astrophotography of the night sky
#38Multi-directional, multi-spectral star tracker with a common aperture and common camera
#39Chip-scale star tracker
#40Zero optical path difference phased array
#41Combined orbit and attitude determination system and methods
#42Star tracker
#43Systems and methods for northfinding
#44Method and apparatus for managing and displaying data
#45Chip-scale star tracker
#46Robust integrated precision high-speed satellite attitude determination and control system (ADCS)
#47Two axis interferometer tracking device and method
#48Dynamic attitude measurement method of star sensor based on gyro's precise angular correlation
#49Celestial Compass with sky polarization
#50Chip-scale star tracker
#51Method and apparatus for managing and displaying data
#52Method for determining attitude of star sensor based on rolling shutter imaging
#53Method for increasing the reliability of sensor systems
#54Combined location and attitude determination system and methods
#55STAR SENSOR WITH REDUCED SENSITIVITY TO STRAY LIGHT INDUCED BY THE SUN OR BY OTHER SOURCES CLOSE TO THE FIELD OF VIEW
#56Image Navigation and Registration Accuracy Improvement Using Parametric Systematic Error Correction
#57Attitude estimation with compressive sampling of starfield data
#58Systems and methods of scene and action capture using imaging system incorporating 3D LIDAR
#59Method and computer program product for controlling inertial attitude of an artificial satellite by applying gyroscopic precession to maintain the spin axis perpendicular to sun lines
#60Method of automatically tracking and photographing celestial objects and photographic apparatus employing this method
#61EARTH HORIZON SENSOR
#62Miniature celestial direction detection system
#63Image navigation method using parametric systematic error correction
#64Flash LADAR system
#65Star tracker with baffle
#66Interferometric tracking device
#67Absolute target system enhanced by combining a star sensor and a formation flight optical metrological sensor
#68Method and device for calibration of digital celestial sensor
#69Calibration of ship attitude reference
#70SELF-ALIGNING TELESCOPE
#71Absolute position determination of an object using pattern recognition
#72Image navigation and registration accuracy improvement using parametric systematic error correction
#73Peripheral filtering star tracker telescope
#74Pixel-frequency slews and filters for star data measurements
#75Inertial position target measuring systems and methods
#76High definition telescope
#77Self-aligning telescope
#78Method and Apparatus for Automatic Identification of Celestial Bodies
#79Real-time refinement method of spacecraft star tracker alignment estimates
#80Method and apparatus for assigning weighting coefficients for performing attitude calculations with a star sensor
#81Optical system with variable pointing and method implementing such a system
#82Pattern recognition system
#83Inertial position target measuring systems and methods
#84Fast access, low memory, pair catalog
#85Refinement of spacecraft angular velocity and attitude estimates using star data
#86Star tracker using vector-based deep learning for enhanced performance
#87Optical angular measurement sensors
#88Out-of-field rejection filters for optical systems
#89Optical angular measurement sensors
#90Low profile multi-axis star sensing
#91Locating objects using indicia