Defense + Security Symposium最新文献_第3页

On-orbit performance of the Compact Infrared Camera (CIRC) with uncooled infrared detector 非冷却红外探测器紧凑型红外相机的在轨性能

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2179764

H. Katayama, M. Sakai, E. Kato, Yasuhoiro Nakajima, K. Nakau, T. Kimura

{"title":"On-orbit performance of the Compact Infrared Camera (CIRC) with uncooled infrared detector","authors":"H. Katayama, M. Sakai, E. Kato, Yasuhoiro Nakajima, K. Nakau, T. Kimura","doi":"10.1117/12.2179764","DOIUrl":"https://doi.org/10.1117/12.2179764","url":null,"abstract":"We have developed the Compact Infrared Camera (CIRC) with an uncooled infrared array detector (microbolometer) for space application. Microbolometers have an advantage of not requiring cooling system such as a mechanical cooler, and is suitable for resource-limited sensor system. Another characteristic of the CIRC is its use of athermal optics. The athermal optics system compensates for defocus owing to temperature changes. We also employ a shutter-less system which is a method to correct non-uniformity of the detector without a mechanical shutter. The CIRC achieves a small size (approximately 200 mm), light mass (approximately 3 kg), and low electrical power consumption (<20 W) by employing athermal optics and a shutterless system. The CIRC is launched in May 2014 as a technology-demonstration payload of Advanced Land Observation Satellite-2 (ALOS-2). Since the initial functional verification phase (July 4-14, 2014), the CIRC was demonstrated a function according to its intended design. We also confirmed the temperature accuracy of the CIRC observation data is within ±4K in the calibration validation phase after the initial functional verification phase. The CIRC also detected wildfires in various areas and observed the volcano activities in the operational phase. In this paper, we present the on-orbit performance of the CIRC onboard ALOS-2.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121385226","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

Uncooled infrared detector and imager development at DALI Technology DALI技术的非冷却红外探测器和成像仪开发

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2175833

Lijun Jiang, Haitao Liu, Jiguang Chi, Liangshan Qian, F. Pan, Xiang Liu, Xiaorong Zhu, Zhigang Ma

引用次数: 4

Feasibility of Radon projection acquisition for compressive imaging in MMW region based new video rate 16×16 GDD FPA camera 基于新视频速率16×16 GDD FPA摄像机的毫米波区域压缩成像氡投影采集的可行性

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2180367

A. Levanon, Michael Konstantinovsky, N. Kopeika, Y. Yitzhaky, A. Stern, Svetlana Turak, A. Abramovich

{"title":"Feasibility of Radon projection acquisition for compressive imaging in MMW region based new video rate 16×16 GDD FPA camera","authors":"A. Levanon, Michael Konstantinovsky, N. Kopeika, Y. Yitzhaky, A. Stern, Svetlana Turak, A. Abramovich","doi":"10.1117/12.2180367","DOIUrl":"https://doi.org/10.1117/12.2180367","url":null,"abstract":"In this article we present preliminary results for the combination of two interesting fields in the last few years: 1) Compressed imaging (CI), which is a joint sensing and compressing process, that attempts to exploit the large redundancy in typical images in order to capture fewer samples than usual. 2) Millimeter Waves (MMW) imaging. MMW based imaging systems are required for a large variety of applications in many growing fields such as medical treatments, homeland security, concealed weapon detection, and space technology. Moreover, the possibility to create a reliable imaging in low visibility conditions such as heavy cloud, smoke, fog and sandstorms in the MMW region, generate high interest from military groups in order to be ready for new combat. The lack of inexpensive room temperature imaging sensors makes it difficult to provide a suitable MMW system for many of the above applications. A system based on Glow Discharge Detector (GDD) Focal Plane Arrays (FPA) can be very efficient in real time imaging with significant results. The GDD is located in free space and it can detect MMW radiation almost isotropically. In this article, we present a new approach of reconstruction MMW imaging by rotation scanning of the target. The Collection process here, based on Radon projections allows implementation of the compressive sensing principles into the MMW region. Feasibility of concept was obtained as radon line imaging results. MMW imaging results with our resent sensor are also presented for the first time. The multiplexing frame rate of 16×16 GDD FPA permits real time video rate imaging of 30 frames per second and comprehensive 3D MMW imaging. It uses commercial GDD lamps with 3mm diameter, Ne indicator lamps as pixel detectors. Combination of these two fields should make significant improvement in MMW region imaging research, and new various of possibilities in compressing sensing technique.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114428816","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

Implementation and performance of shutterless uncooled micro-bolometer cameras 无快门非冷却微测热仪相机的实现与性能

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2177315

J. Das, D. De Gaspari, P. Cornet, P. Deroo, J. Vermeiren, P. Merken

引用次数: 4

Low-SWaP shutterless uncooled video core by SCD 低交换无快门非冷却视频核心由SCD

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2176930

U. Mizrahi, S. Yuval, Y. Hirsh, Y. Sinai, Y. Lury, Y. Gridish, N. Syrel, Y. Shamay, R. Meshorer, R. Iosevich, S. L. Horesh

引用次数: 5

Advanced uncooled sensor product development 先进的非制冷传感器产品开发

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2177462

A. Kennedy, P. Masini, M. Lamb, J. Hamers, T. Kocian, E. Gordon, W. Parrish, R. Williams, T. Lebeau

{"title":"Advanced uncooled sensor product development","authors":"A. Kennedy, P. Masini, M. Lamb, J. Hamers, T. Kocian, E. Gordon, W. Parrish, R. Williams, T. Lebeau","doi":"10.1117/12.2177462","DOIUrl":"https://doi.org/10.1117/12.2177462","url":null,"abstract":"The partnership between RVS, Seek Thermal and Freescale Semiconductor continues on the path to bring the latest technology and innovation to both military and commercial customers. The partnership has matured the 17μm pixel for volume production on the Thermal Weapon Sight (TWS) program in efforts to bring advanced production capability to produce a low cost, high performance product. The partnership has developed the 12μm pixel and has demonstrated performance across a family of detector sizes ranging from formats as small as 206 x 156 to full high definition formats. Detector pixel sensitivities have been achieved using the RVS double level advanced pixel structure. Transition of the packaging of microbolometers from a traditional die level package to a wafer level package (WLP) in a high volume commercial environment is complete. Innovations in wafer fabrication techniques have been incorporated into this product line to assist in the high yield required for volume production. The WLP seal yield is currently > 95%. Simulated package vacuum lives >> 20 years have been demonstrated through accelerated life testing where the package has been shown to have no degradation after 2,500 hours at 150°C. Additionally the rugged assembly has shown no degradation after mechanical shock and vibration and thermal shock testing. The transition to production effort was successfully completed in 2014 and the WLP design has been integrated into multiple new production products including the TWS and the innovative Seek Thermal commercial product that interfaces directly to an iPhone or android device.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122836434","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: 14

Uncooled infrared focal plane array imaging in China 中国非冷却红外焦平面阵列成像

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2176032

Shuyu Lei

引用次数: 8

Enhanced performance of VOx-based bolometer using patterned gold black absorber 利用图案金黑色吸收剂增强vox基辐射热计的性能

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2177401

Evan M. Smith, Deep Panjwani, J. Ginn, A. Warren, C. Long, Pedro Figuieredo, Christian W. Smith, Joshua D. Perlstein, Nicholas M Walter, C. Hirschmugl, R. Peale, D. Shelton

引用次数: 8

Improving the shutter-less compensation method for TEC-less microbolometer-based infrared cameras 改进了无tec微辐射热计红外相机的无快门补偿方法

Defense + Security Symposium Pub Date : 2015-06-08 DOI: 10.1117/12.2177003

A. Tempelhahn, H. Budzier, V. Krause, Gerald Gerlach

引用次数: 10

On an efficient and effective intelligent transportation system (ITS) safety and traffic efficiency application with corresponding driver behavior 研究了高效、有效的智能交通系统(ITS)的安全和交通效率应用与相应的驾驶员行为

Defense + Security Symposium Pub Date : 2015-06-05 DOI: 10.1117/12.2177505

Nnanna Ekedebe, Wei Yu, Chao Lu

{"title":"On an efficient and effective intelligent transportation system (ITS) safety and traffic efficiency application with corresponding driver behavior","authors":"Nnanna Ekedebe, Wei Yu, Chao Lu","doi":"10.1117/12.2177505","DOIUrl":"https://doi.org/10.1117/12.2177505","url":null,"abstract":"Driver distraction could result in safety compromises attributable to distractions from in-vehicle equipment usage [1]. The effective design of driver-vehicle interfaces (DVIs) and other human-machine interfaces (HMIs) together with their usability, and accessibility while driving become important [2]. Driving distractions can be classified as: visual distractions (any activity that takes your eyes away from the road), cognitive distraction (any activity that takes your mind away from the course of driving), and manual distractions (any activity that takes your hands away from the steering wheel [2]). Besides, multitasking during driving is a distractive activity that can increase the risks of vehicular accidents. To study the driver’s behaviors on the safety of transportation system, using an in-vehicle driver notification application, we examined the effects of increasing driver distraction levels on the evaluation metrics of traffic efficiency and safety by using two types of driver models: young drivers (ages 16-25 years) and middle-age drivers (ages 30-45 years). Our evaluation data demonstrates that as a drivers distraction level is increased, less heed is given to change route directives from the in-vehicle on-board unit (OBU) using textual, visual, audio, and haptic notifications. Interestingly, middle-age drivers proved more effective/resilient in mitigating the negative effects of driver distraction over young drivers [2].","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133192666","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