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3 edition of Optical alignment of Centaur"s inertial guidance system found in the catalog.

Optical alignment of Centaur"s inertial guidance system

Optical alignment of Centaur"s inertial guidance system

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Published by NASA, For sale by National Technical Information Service in [Washington, D.C.?], [Springfield, Va.? .
Written in English

    Subjects:
  • Inertial navigation (Astronautics)

  • Edition Notes

    StatementAndrew L. Gordan.
    SeriesNASA technical memorandum -- 88844.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17658309M

    The microelectromechanical system (MEMS) inertial technology is a set of precision instruments, precision machinery, micro electronics, and semiconductor integrated circuit process technology and has, thus, become one of the world's most progressive technologies; inertial technology has emerged as an important research direction in recent years. Abstract. Various papers on acquisition, tracking, and pointing are presented. Individual topics addressed include: backlash control techniques in geared servo mechanics; optical fiber and photodetector array for robotic seam tracking; star trackers for spacecraft applications; Starfire optical range tracking system for the m telescope; real-time video image centroid tracker; optical.


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Optical alignment of Centaur"s inertial guidance system Download PDF EPUB FB2

Optical alignment of Centaur's inertial guidance system [microform] / Andrew L. Gordan NASA ; For sale by National Technical Information Service [Washington, D.C.?]: [Springfield, Va. Australian/Harvard Citation.

Get this from a library. Optical alignment of Centaur's inertial guidance system. [Andrew L Gordan; United States. National Aeronautics and Space Administration.].

Optical alignment of Centaur's inertial guidance system During Centaur launch operations the launch azimuth of the inertial platform's U-accelerometer input axis must be accurately established and maintained.

This is accomplished by using an optically closed loop system with a long-range autotheodolite whose line of sight was established by a Author: Andrew L. Garb. Optical alignment of Centaur's inertial guidance system During Centaur launch operations the launch azimuth of the inertial platform's U-accelerometer input axis must be accurately established and maintained.

This is accomplished by using an optically closed loop system with a long-range autotheodolite whose line of sight was established by Author: Andrew L. Gordan. Robert D. Christ, Robert L. Wernli Sr., in The ROV Manual (Second Edition), Inertial navigation systems.

Inertial Navigation Systems (INS) are navigational systems capable of calculating position, either relative to some reference system/point or to absolute coordinates.

An INS system is composed of at least three gyros and three accelerometers enabling the system to derive a. An inertial navigation system (INS) is a navigation device that uses a computer, motion sensors (accelerometers) and rotation sensors to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the need for external references.

Often the inertial sensors are supplemented by a barometric altimeter and. APOLLO NAVIGATION, GUIDANCE, AND CONTROL SYSTEMS A PROGRESS REPORT ABSTRACT The status of certain aspects of the Apollo navigation, guidance, and control systems in the commandmodule and lunar module are examined on the basis of experience with the first eight development flights Covered in this paper are facets of the inertial, optical, and.

The LM Abort Guidance System (AGS), Control Electronics System (CES) and other LM-specific hardware are also addressed. Three subsystems exist on each vehicle: the computer subsystem (CSS), the inertial subsystem (ISS) and the optical subsystem (OSS).

Responsive space-lift is a new trend in space launches. It requires the guidance system of the launch vehicle to be easily prepared, precise, robust, and adaptive.

The stellar/inertial Optical alignment of Centaurs inertial guidance system book guidance system, which combines two distinct types of navigation data, has been successfully used for submarine-launched ballistic missiles. Throughout the report a simple inertial navigation system (INS) is developed based on an Xsens Mtx device.

The report is structured as follows: • Section 2 introduces the reader to inertial navigation, its uses, and the two main varieties of inertial navigation system. • Sections 3 and 4 describe gyroscopes and accelerometers in detail.

‎Incorporating the historic Apollo CSM Spacecraft News Reference, this unique document provides extraordinary detail about America's Apollo Command and Service Module. Every major component and system on the incredibly successful CSM is covered in detail.

It provides one of the best technical, nuts-a. The AGC (G+N Guidance and Navigation) system is semi automatic, directed and operated by the three man crew. It performs basic functions of inertial guidance, Attitude, reference and optical navigation. and is inter-related mechanically or electrically with the stabilization and control, electric power, environmental control, telecommunications.

Inertial Reference Unit • 1 nautical mile per hour performance • Outputs: – 50Hz body rates and accelerations, pitch, roll – 25Hz heading – 20Hz velocities Both systems use inertial sensors and know about the orientation of the device, but only the system on the left can be used to navigate using inertial measurements only.

Celestial navigation instruments (star trackers and crewman optical alignment sight) are used to maintain IMU alignment in orbit. For entry, the accuracy of the IMU-derived state vector is, however, insufficient for either guidance or the flight crew to bring the spacecraft to a pinpoint landing.

Initial alignment of the MEMS inertial measurement system assisted by magnetometers A fast initial alignment for SINS based on disturbance observer and Kalman filter 20 July | Transactions of the Institute of Measurement and Control, Vol. 38, No.

A guidance system is a virtual or physical device, or a group of devices implementing a controlling the movement of a ship, aircraft, missile, rocket, satellite, or any other moving ce is the process of calculating the changes in position, velocity, attitude, and/or rotation rates of a moving object required to follow a certain trajectory and/or attitude profile based on.

The Inertial Stellar Compass (ISC) is a miniature, low power, stellar inertial attitude determination system with an accuracy of better than degree (1 sigma) in three axes.

The Centaur guidance system was all-inertial, consisting primarily of a four-gimbal all-attitude inertial platform and a general purpose serial digital computer with a magnetic drum memory. The airborne guidance program was written onto the drum memory from a punched paper tape along with a pre-flight calibration and alignment program for.

Optimal Parameter Design of Coarse Alignment for Fiber Optic Gyro Inertial Navigation System 25 June | Sensors, Vol. 15, No. 7 The Early Eighties: Development of In-Flight Transfer Alignment – Challenges and Methods.

The Apollo primary guidance, navigation, and control system (PGNCS) (pronounced pings) was a self-contained inertial guidance system that allowed Apollo spacecraft to carry out their missions when communications with Earth were interrupted, either as expected, when the spacecraft were behind the Moon, or in case of a communications failure.

The Apollo command module (CM) and lunar module. The proposed inertial frame-based alignment approach outperforms the standard KF-based alignment methods and achieves a robust and accurate solution for marine fiber-optic SISN alignment.

This paper proposes a new optical hybrid navigation method for use in close flybys of small celestial bodies. Two steps are taken to estimate the inertial. The G&N system consisted of an inertial measurement unit, optical alignment telescope and space sextant, and digital guidance computer.

System weight and schedule limits were driving factors in its development. As a result, new. Inertial navigation is widely used for the guidance of aircraft, missiles, ships and land vehicles, as well as in a number of novel applications such as surveying underground pipelines in drilling operations.

This book sets out to provide a clear and concise description of the physical principles of inertial navigation, the associated growth of errors and their compensation.4/5(6). Sri Ramya B, Venugopal Reddy B, Chandrasekhary R S and Narayana Murthy B Novel two position ground alignment technique for strapdown inertial navigation system Aerospace Electronics and Remote Sensing Technology (ICARES) IEEE International Conf.

(Yogyakarta,) pp 94–8. Google Scholar. The OL1 optical micrometer stands out due to its miniature design and is small enough to fit in the tiniest machine spaces. Thanks to the LED alignment aid and a function for aligning the light band integrated into the AOD1 evaluation unit, installing and aligning the sender and receiver unit is child’s play.

The Apollo Guidance and Navigation System The sextant fulfilled the need for a device to aid the alignment and bound the drift of the inertial system.

The instrument consisted of two telescopes. The first was a one-power, wide-field scanning telescope, which was used to locate a. Titan was a family of United States expendable rockets used between and Titan I and Titan II were part of the US Air Force's intercontinental ballistic missile fleet until The space launch vehicle versions contributed the majority of the Titan launches, including all the Project Gemini crewed flights of the mids.

Titan vehicles were also used to lift US military. It is a small, lightweight, low cost, high performance startracker that can be used in a variety of applications including calibration and alignment of Inertial Measurement Units (IMU's) Mini-OWLS makes use of a strap down design incorporating Holographic Optical Elements (HOES) in place of conventional optics.

The AGS is an inertial system that is rigidly strapped to the vehicle rather tban mounted on a stablllzed platform. Use of the strapped-down inertial system, rather than a gimbaled system, offers sufficient accuracy for lunar missions, with savings in size and weight.

Another feature is that it can be updated manually with radar and optical aids. Inertial Navigation & guidance system. For Grad & Post grad Avionics students Part One Inertial navigation is a self-contained navigation technique in which measurements provided by accelerometers and gyroscopes are used to track the position and orientation of an object relative to a known starting point, orientation and velocity.

An Outline of Inertial Navigation. Navigation\'s Beginnings. Inertial Navigation. Maps and Reference Frames. The Inertial Navigation Process.

Inertial Platforms. Strapdown Systems. System Alignment. Advantages and Disadvantages of Platform Systems. Advantages and Disadvantages of Strapdown Systems. Star Trackers.

The Global Positioning System. As part of the Trident II guidance system life-extension program, Draper Lab experts went to Nufern in East Granby, Conn., to provide rugged optical fiber for use in the Trident II's guidance system. Overview The accuracy of an inertial navigation system is often expressed as a position uncertainty after a given period of navigation, or on reaching a given destination.

this book sets out to provide a clear and concise description of the physical principles of inertial navigation, the associated growth of errors and their compensation.

The LM Abort Guidance System (AGS), Control Electronics System (CES) and other LM-specific hardware are also addressed. Three subsystems exist on each vehicle: the computer subsystem (CSS), the inertial subsystem (ISS) and the optical subsystem (OSS).

Optical alignment, using either of the following: (a) Optical line-of-sight reference to a ground-based direction (e.g., using a ground-based theodolite and a mirror on the platform). Some space boosters have used this type of optical alignment, which is much faster and more accurate than gyrocompass alignment.

Inertial Navigation System (INS) The combination of an IMU and a computer running navigation equations is called an Inertial Navigation System (INS). Due to errors in the gyros and accelerometers, an INS will have unlimited drift in velocity, position and attitude.

Navigation Equations Navigation Equations Gyros Accelero. Correction of the Inertial Navigation Solution Loosely Coupled Integration Tightly Coupled Integration GNSS Aiding Deep Integration System Model and State Selection State Selection and Observability INS State Propagation in the Inertial Frame Inertial Navigation Sensors The Ring Laser Gyro is basically a mature technology, and most development efforts involve continued cost reduction, rather than efforts at performance gains.

The Honeywell HG Embedded GPS/INS, which is based on GG RLGs, is a 1-nautical-mile/hour navigator that has been installed on over 50 different. Modern Inertial and Satellite Navigation Systems page 5 Bibliography [1] Broxmeyer, C., “Inertial Navigation Systems”, McGraw Hill.

Andrew L. Gordan has written: 'Optical alignment of Centaur's inertial guidance system' -- subject(s): Inertial navigation (Astronautics) Asked in Cars & Vehicles, Payroll Services, Business Finance.Philip Bowditch graduated from MIT in with a degree in Metallurgy after serving in the coast guard during World War II.

He joined the Instrumentation Lab (now Draper) as a Junior Engineer inworking on inertial guidance. Together with Alex Koso, Bowditch led the design and development of the optics systems for both the Command (CM) and Lunar Modules (LM).‎This is the official final mission report issued by the NASA Johnson Space Center for the flight of STS-1, the first Space Shuttle mission launched in April with John Young and Robert Crippen.

In addition to technical details, this report includes the report of Young and Crippen on the mission.