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Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques最新文献

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Imaging Bistatic Lidar Technique for Upper Atmosphere Studies 高层大气研究成像双基地激光雷达技术
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.tua5
B. Welsh, C. Gardner
{"title":"Imaging Bistatic Lidar Technique for Upper Atmosphere Studies","authors":"B. Welsh, C. Gardner","doi":"10.1364/lors.1987.tua5","DOIUrl":"https://doi.org/10.1364/lors.1987.tua5","url":null,"abstract":"The structural characteristics of the sodium layer are of considerable interest in the study of mesosphere dynamics. Much of the past and current research of the sodium layer have made use of monostatic lidar measurements to study these characteristics. An alternate approach is to use a bistatic lidar configuration, consisting of a cw laser to illuminate the sodium layer, and an imaging system to record the laser spot created by the resonant sodium scattering. The basic idea is to infer the structural characteristics of the layer from selected profiles of the imaged laser spot.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"68 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116374671","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: 0
400 Hz Line Center Stability in a GaAlAs Diode Laser GaAlAs二极管激光器400hz线中心稳定性
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.wc22
T. Shay, J. D. Dobbins, Y. Chung
{"title":"400 Hz Line Center Stability in a GaAlAs Diode Laser","authors":"T. Shay, J. D. Dobbins, Y. Chung","doi":"10.1364/lors.1987.wc22","DOIUrl":"https://doi.org/10.1364/lors.1987.wc22","url":null,"abstract":"Frequency-stabilized semiconductor lasers are practical sources for a wide variety of potential applications including remote sensing, laser spectroscopy, optical frequency standards, coherent optical communication, coherent optical sensors, laser gyroscopes, etc. In particular diode lasers are convenient sources for injection locking tunable solid state lasers. Solitary semiconductor lasers are essentially impervious to acoustical and mechanical disturbances since they have no external optics. On the other hand, the operating frequency of a semiconductor laser is very sensitive to temperature and current variations, therefore standard diode laser systems have very poor frequency stability. Thus the first step in frequency stabilizing a diode laser consists of stabilizing the temperature and injection current of the laser.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117131485","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: 0
Spatial Sampling of the Measuring Volume by the Introduction of Dedicated Apertures in Lidar Systems 激光雷达系统中引入专用孔径测量体的空间采样
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.mc21
S. Hanson
{"title":"Spatial Sampling of the Measuring Volume by the Introduction of Dedicated Apertures in Lidar Systems","authors":"S. Hanson","doi":"10.1364/lors.1987.mc21","DOIUrl":"https://doi.org/10.1364/lors.1987.mc21","url":null,"abstract":"In ordinary Laser Doppler Anemometry (IDA) light scattered from single particles from two different beams of laser light is mixed coherently on a photodetector surface. The detector current contains information on the velocity of single particles, and various temporal moments of the velocity distribution can be deducted from the readings. LIDAR systems for velocity determination based on infrared sources are usually depending on parametric amplification and will therefore solely probe the longitudinal flow velocity, whereas systems based on lasers emitting visible light are independent of a local oscillator facilitating the probing of all three velocity components in a small measuring volume.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114152540","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: 0
Introduction To The 100" Lidar System (MEGALIDAR) 100英寸激光雷达系统(MEGALIDAR)简介
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.wc21
R. Richmond, J. Servaites
{"title":"Introduction To The 100\" Lidar System (MEGALIDAR)","authors":"R. Richmond, J. Servaites","doi":"10.1364/lors.1987.wc21","DOIUrl":"https://doi.org/10.1364/lors.1987.wc21","url":null,"abstract":"The colossal 100\" collimator facility is being developed into a lidar system. The collimator is a 12 story high chamber with a 100\" diameter f/6 mirror at the bottom of the chamber. By opening the top of the facility, the collimator is converted into a vertically pointed telescope. By installing a suitable detector at the focal point of the telescope, the chamber becomes the receiver of a extraordinary lidar system. The purpose of this paper is to introduce the facility at Wright-Patterson and the efforts, both present and planned, being undertaken to make this one-of-a-kind LIDAR facility a reality.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126590387","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: 0
Detection of Methane Leaks with a Correlation Lidar 用相关激光雷达探测甲烷泄漏
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.mc12
E. Galletti
{"title":"Detection of Methane Leaks with a Correlation Lidar","authors":"E. Galletti","doi":"10.1364/lors.1987.mc12","DOIUrl":"https://doi.org/10.1364/lors.1987.mc12","url":null,"abstract":"An IR light source based on a Lithium Niobate Optical Parametric Oscillator (OPO) has been developed to measure small average concentrations of atmospheric pollutants by LIDAR technique.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131816401","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: 0
Concepts for Future Meteorological Earth Observing Sensors 未来气象地球观测传感器的概念
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.tuc11
D. L. Glackin
{"title":"Concepts for Future Meteorological Earth Observing Sensors","authors":"D. L. Glackin","doi":"10.1364/lors.1987.tuc11","DOIUrl":"https://doi.org/10.1364/lors.1987.tuc11","url":null,"abstract":"The Aerospace Corporation is currently surveying advanced sensor concepts for environmental monitoring from space in the late 1990's and beyond. The parameters to be measured include a wide variety of atmospheric, terrestrial, and oceanographic items. The specific sensor concepts to be described apply to the measurement of clouds, winds, temperature, and humidity. Special emphasis in this presentation will be placed on the subject of clouds. The sensor concepts include: 1) a scanning radiometer for low Earth orbit cloud observation, 2) a meter-class telescope for geosynchronous altitude cloud observation, 3) a millimeter wave radar for cloud top, layer, and base sensing, 4) a stereo imager with a lidar sounder for cloud top sensing, 5) a lidar wind sensor, and 6) a differential absorption lidar (DIAL) for temperature and humidity profiling.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"57 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131830041","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: 0
Lidar Experiment On Spacelab LEOS 空间实验室leo激光雷达实验
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.ma3
M. Endemann, V. Klein, W. Renger, H. Quenzel
{"title":"Lidar Experiment On Spacelab LEOS","authors":"M. Endemann, V. Klein, W. Renger, H. Quenzel","doi":"10.1364/lors.1987.ma3","DOIUrl":"https://doi.org/10.1364/lors.1987.ma3","url":null,"abstract":"There are plans for a second German spacelab mission (D2-mission) (originally scheduled for late 1988) which will be basically a zero-g mission, but will also include earth observation experiments. Encouraged by our experience with airborne lidar systems and the results from theoretical studies, we have proposed a backscatter lidar for this or later spacelab missions.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130936212","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: 0
Improved Diode-Laser Random-Modulation CW Lidar 改进的二极管激光随机调制连续波激光雷达
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.tha4
H. Baba, K. Sakurai, N. Takeuchi, T. Ueno
{"title":"Improved Diode-Laser Random-Modulation CW Lidar","authors":"H. Baba, K. Sakurai, N. Takeuchi, T. Ueno","doi":"10.1364/lors.1987.tha4","DOIUrl":"https://doi.org/10.1364/lors.1987.tha4","url":null,"abstract":"Diode laser (DL) has the advantages such as compact size, small weight, small consumption power, low driving voltage, high power efficiency, easy handling of power and frequency modulation, long lifetime and low cost. Although the peak power is much smaller than that of the giant pulse solid-state laser (more than eight orders of magnitude), the average power is not so small. So the use of a cw-DL realizes a compact, reliable, practical, portable lidar system. Introducing the pseudo-random-modulation technique, we already reported the construction of a DL random-modulation cw (RM-CW) lidar and the successful operation of the nighttime aerosol measurement1),2). In this paper, we report the outline of the RM-CV lidar, the improvement of the DL RM-CV lidar, and the measurement of the daytime aerosol profile measurement as well as the nighttime one.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130949134","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: 0
Lidar Moisture Measurements During COHMEX COHMEX期间激光雷达湿度测量
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.thb4
S. Melfi, D. Whiteman, R. Ferrare
{"title":"Lidar Moisture Measurements During COHMEX","authors":"S. Melfi, D. Whiteman, R. Ferrare","doi":"10.1364/lors.1987.thb4","DOIUrl":"https://doi.org/10.1364/lors.1987.thb4","url":null,"abstract":"Water vapor is one of the most important state variables of the atmosphere. Its concentration and distribution with height influences atmospheric circulation and dynamics, and figures prominently in a number of atmospheric processes including: 1) atmospheric stability, 2) cloud formation, 3) radiative transfer, 4) storm development, to mention only a few.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122246194","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: 0
Focal Plane Array Technology for Optical Remote Sensing 光学遥感焦平面阵列技术
Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI: 10.1364/lors.1987.wa2
J. Cutts, M. Leipold
{"title":"Focal Plane Array Technology for Optical Remote Sensing","authors":"J. Cutts, M. Leipold","doi":"10.1364/lors.1987.wa2","DOIUrl":"https://doi.org/10.1364/lors.1987.wa2","url":null,"abstract":"Progress in the development of solid-state self-scanned imaging arrays for remote sensing in the infrared region highlighting recent developments is reviewed.","PeriodicalId":339230,"journal":{"name":"Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122434654","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: 0
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