PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556)最新文献_第2页

A performance comparison between a SCAT-1 DGPS system and the Omnistar DGPS system SCAT-1 DGPS系统与Omnistar DGPS系统的性能比较

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1309010

G. Loegering

{"title":"A performance comparison between a SCAT-1 DGPS system and the Omnistar DGPS system","authors":"G. Loegering","doi":"10.1109/PLANS.2004.1309010","DOIUrl":"https://doi.org/10.1109/PLANS.2004.1309010","url":null,"abstract":"The Global Hawk UAV (Unmanned Aerial Vehicle) was developed by the Northrop Grumman's Ryan Aeronautical Center to perform high altitude reconnaissance. The initial design of the Global Hawk navigation system utilized a RTCA DO-217 compliant special category 1 (SCAT-1) differential GPS (DGPS) system to provide sufficient navigation accuracy for taxi, takeoff and landing operations. The SCAT-1 DGPS system consists of a ground station that produces the differential corrections, a data link transmitter to uplink the corrections to the aircraft, a data link receiver in the aircraft and a GPS receiver able to utilize differential GPS corrections. The SCAT-1 DGPS system has been shown, both during flight tests of the navigation system in a company owned King Air, and during actual flights of the UAV to provide more than sufficient accuracy for takeoff and landing operations. At the point in time that the Global Hawk was to fly outside of the Edwards Air Force Base restricted airspace, discussions were held relative to off field landings. The problem raised relative to getting in and out of an emergency landing field was how to provide differential corrections to the aircraft in such a situation. It was undesirable to have to install a SCAT-1 DGPS ground station at each of the anticipated emergency landing fields. It was at this juncture that the use of commercially available world-wide DGPS services was investigated. The system chosen for providing DGPS corrections to the aircraft in the event of an emergency landing is Omnistar. This paper will describe the system implementation of the Omnistar on board Global Hawk, and will provide data comparing the accuracy of this system against the accuracy of the SCAT-1 DGPS system initially designed into the UAV.","PeriodicalId":102388,"journal":{"name":"PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130834524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Honeywell gun-hard inertial measurement unit (IMU) development 霍尼韦尔枪硬惯性测量单元(IMU)的开发

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1308973

D. Karnick, G. Ballas, L. Koland, M. Secord, T. Braman, T. Kourepenis

{"title":"Honeywell gun-hard inertial measurement unit (IMU) development","authors":"D. Karnick, G. Ballas, L. Koland, M. Secord, T. Braman, T. Kourepenis","doi":"10.1109/PLANS.2004.1308973","DOIUrl":"https://doi.org/10.1109/PLANS.2004.1308973","url":null,"abstract":"Honeywell has designed and manufactured a gun-hard IMU that provides the baseline for meeting the needs of DoD guided tactical munitions, as well as being a platform for commercial usage. The gun-hard IMU is a solid-state inertial sensor package that measures and provides inertial angular rates and linear accelerations in a body-mounted strap-down mechanization. Its compensated outputs include summed and incremental angle and velocity data for inertial guidance, as well as angular rates and linear accelerations for autopilot/control functions. The data are reported in user-defined coordinates at 600 Hz and 100 Hz (typically) through a digital serial interface bus. The unit contains three Honeywell MEMS silicon gyroscopes, three Honeywell MEMS silicon accelerometers, as well as the electronics and software necessary to implement the requirements of the tactical market. The Honeywell gun-hard IMU development team includes multiple Honeywell sites and Draper Laboratories. In 2003, Honeywell demonstrated IMU survival and performance above 10,000 g's. In 2004, Honeywell will produce and deliver an IMU that will survive and perform at 20,000 g's. In addition to providing gun-hard survivability and high performance, Honeywell will capitalize on its extensive production experience to ensure a device that is cost effective for Honeywell customers.","PeriodicalId":102388,"journal":{"name":"PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133781768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Geo-information entropy for positioning and navigation 用于定位和导航的地理信息熵

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1309008

Ming Yan, Lei Yan, Kedong Wang

引用次数: 4

Approximation of the Disturbing Potential through GPS measurements 通过GPS测量来逼近干扰电位

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1309050

M. Shugaev

引用次数: 0

GPS/INS integration without gyro GPS/INS集成无陀螺仪

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1308989

Huan-Jung Lin

引用次数: 1

Forward Inertial Sensor Package for the Compact Kinetic Energy Missile 紧凑型动能导弹前向惯性传感器组件

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1308971

D. Tarrant, P. Couch

{"title":"Forward Inertial Sensor Package for the Compact Kinetic Energy Missile","authors":"D. Tarrant, P. Couch","doi":"10.1109/PLANS.2004.1308971","DOIUrl":"https://doi.org/10.1109/PLANS.2004.1308971","url":null,"abstract":"This paper provides an overview of the Forward ISP, an integral component of the US Army Research, Development, and Engineering Command's (RDECOM) in-house Compact Kinetic Energy Missile (CKEM) missile, which was first flight-tested in October 2001. The Forward Inertial Sensor Package (ISP) was introduced on the third flight test in May 2003, and complements an inertial sensor suite in the aft portion of the missile. This paper will focus on the forward sensor suite (the Forward ISP). In addition to providing inertial information to the CKEM's telemetry and flight computer systems, this unit performs two additional functions. First, it functions as an inertial component technology test bed. Secondly, it provides environmental shock and vibration information for the forward nosecone section that houses the wrap around Attitude Control System (ACS), present in Government and industry designs. The US Army's pursuit of a missile design parallel to that of industry allows for faster maturation of technology and faster transition of that technology to industry. Further, this sustains a highly technical work force critical to the rapid development and deployment of defense products to the US Army.","PeriodicalId":102388,"journal":{"name":"PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556)","volume":"7 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128442744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Paired overbounding and application to GPS augmentation 配对超边界及其在GPS增强中的应用

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1309027

Jason Rife, S. Pullen, B. Pervan, P. Enge

{"title":"Paired overbounding and application to GPS augmentation","authors":"Jason Rife, S. Pullen, B. Pervan, P. Enge","doi":"10.1109/PLANS.2004.1309027","DOIUrl":"https://doi.org/10.1109/PLANS.2004.1309027","url":null,"abstract":"The relationship between range-domain and position-domain errors remains an open issue for GPS augmentation programs, such as the Federal Aviation Administration's Local Area Augmentation System (LAAS). This paper introduces a theorem that guarantees a conservative error bound (overbound) in the position domain given similarly conservative overbounds for broadcast pseudorange statistics. This paired overbound theorem requires that a cumulative distribution function (CDF) be constructed to bound both sides of the range-domain error distribution. The paired overbound theorem holds for arbitrary error distributions, even those that are non-zero mean, asymmetric or multimodal. Two applications of the paired overbound theorem to GPS augmentation are also discussed. First, the theorem is employed to construct an inflation factor for a non-zero mean Gaussian distribution; in the context of a simulation of worst-case satellite geometries for 10 locations in the United States and Europe, the required inflation factor for broadcast sigma is only 1.18, even for biases as large as 10 cm for each satellite. Second, the theorem is applied to bound a bimodal multipath model tightly; the result shaves more than 40% off the previously established inflation factor derived through a more overly conservative analysis.","PeriodicalId":102388,"journal":{"name":"PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125672307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 58

Initial results from a long baseline, kinematic, differential GPS carrier phase experiment in a marine environment 在海洋环境中进行的长基线、运动学、差分GPS载波相位实验的初步结果

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1309052

S. Bisnath, D. Wells, M. Santos, K. Cove

{"title":"Initial results from a long baseline, kinematic, differential GPS carrier phase experiment in a marine environment","authors":"S. Bisnath, D. Wells, M. Santos, K. Cove","doi":"10.1109/PLANS.2004.1309052","DOIUrl":"https://doi.org/10.1109/PLANS.2004.1309052","url":null,"abstract":"The University of Southern Mississippi (USM) and the University of New Brunswick (UNB) have collaborated to devise and carry out a long-term experiment in precise GPS positioning over long distances in a marine environment. A pair of GPS reference stations have been deployed on either side of the Bay of Fundy in Canada, at the terminals of an approximately 75 km ferry route. A geodetic receiver has been installed on the ferry. Surface meteorological equipment has also been collocated with the three receivers. The primary goal of the study, over the course of one year of data collection from the daily ferry runs, realizing that the differential troposphere is a major limiting factor in marine positioning, is to attempt to advance positioning results by means of improved differential tropospheric modeling. The results presented in the paper include a full description of the experiment, and descriptions of the GPS and meteorological data collected, as well as the software used in the processing. Initial PPK data processing results are presented illustrating positioning accuracy versus baseline length. And results from tests using various tropospheric delay values are presented.","PeriodicalId":102388,"journal":{"name":"PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556)","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130668005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

HMS SCOTT ring laser gyro navigator integration HMS SCOTT环形激光陀螺导航集成

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1308988

M. Leblang

引用次数: 0

A fast matched filter in time domain 一种时域快速匹配滤波器

PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556) Pub Date : 2004-04-26 DOI: 10.1109/PLANS.2004.1309029

D. Akopian, S. Agaian

引用次数: 6