Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings最新文献

Performing the Galileo mission using the S-band low-gain antenna 使用s波段低增益天线执行伽利略任务

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291197

J. Marr

引用次数: 6

Carrier false lock performance for TDRS TT&C transponder TDRS TT&C应答器的载波假锁性能

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291184

C. Tsang

引用次数: 3

An electronically scanned dual-polarized antenna for tracking multiple targets simultaneously 一种电子扫描双极化天线，用于同时跟踪多个目标

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291192

W. Gregorwich, R. Ward, R.A. Hall

引用次数: 4

Zone plate reflector antennas for applications in space 空间用带板反射天线

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291189

H.A. Malliot

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引用次数: 9

Reactive antenna matching when using integrated optical modulators 使用集成光调制器时的无功天线匹配

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291186

M. Grace, M. VanBlaricum, T. Larry, P. Stieber

引用次数: 1

Microwave CLO sounder 微波CLO测深仪

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291178

H. Malliot

{"title":"Microwave CLO sounder","authors":"H. Malliot","doi":"10.1109/AERO.1994.291178","DOIUrl":"https://doi.org/10.1109/AERO.1994.291178","url":null,"abstract":"Describes the design of a satellite borne microwave radiometer operating at the frequency of 204.352 GHz for sounding the abundance of stratospheric chlorine oxide (CLO). The CLO sounder is assumed to be at an altitude of 600 km and observes the atmosphere at tangential range of 2780 km at 20 km altitude. The altitude range from 15 km to 45 km is observed in eleven tracks with center-center spacing of 2.73 km and widths of 3.1 km. An innovative antenna design uses a 1.7 m diameter offset feed zone plate reflector and an assembly of feed horns to provide eleven simultaneous beams in the elevation plane with beam-beam angular separations of 0.056 degree and beamwidths of 0.064 degree. Secondary and a tertiary reflectors direct the beams onto an array of feed horns. The secondary reflector provides compensation for aberrations due to the off-axis geometry. The tertiary reflector switches the observed source among soundings and cold sky and hot load calibrations. A low risk radiometer design uses direct down conversion by two stage mixing to convert the 204.352 GHz signal to a 510 MHz band centered at 600 MHz. The 600 MHz IF signal is input to a filter bank which produces outputs in 15 channels with bandwidths from 2 to 128 MHz. With two second integration, the radiometer sensitivity is 0.35 K with 2 MHz bandwidth and 0.04 K with 128 MHz bandwidth. Calibration is provided by periodic hot load and cold sky views.<<ETX>>","PeriodicalId":223269,"journal":{"name":"Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130785912","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

A telemetering educational graduate program: the aerospace applications test and evaluation dimension 遥测教育研究生课程:航空航天应用测试与评估维度

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291205

F. Carden

引用次数: 0

An overview of object-oriented design and C++ 面向对象设计和c++的概述

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291202

R. R. Seban

引用次数: 7

Sneak circuit path within a DPDT relay DPDT继电器内的偷偷电路路径

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291182

M. Rosenthal, L. Mallette, K. Ishikawa, J. Varney

引用次数: 2

The Benefield Anechoic Facility (BAF) threat generation system 贝尼菲尔德消声设备(BAF)威胁生成系统

Proceedings of 1994 IEEE Aerospace Applications Conference Proceedings Pub Date : 1994-02-05 DOI: 10.1109/AERO.1994.291198

R. Smith, R. Taylor

引用次数: 2