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2019 International Conference on Range Technology (ICORT)最新文献

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Effect of Gun Barrel Wear on Muzzle Velocity of a typical Artillery Shell 炮管磨损对典型炮弹初速的影响
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069641
A. Banerjee, Nityananda Nayak, Dakshyaraj Giri, Karunakar Bandha
{"title":"Effect of Gun Barrel Wear on Muzzle Velocity of a typical Artillery Shell","authors":"A. Banerjee, Nityananda Nayak, Dakshyaraj Giri, Karunakar Bandha","doi":"10.1109/ICORT46471.2019.9069641","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069641","url":null,"abstract":"Wear in gun barrels is inevitable and it progresses with firing of rounds. Barrel wear directly affects the chamber pressures and hence the muzzle velocities (MVs) of the shells being fired. Along with the loss of MV, range, accuracy etc. are hampered and a barrel often has to be condemned due to wear even before it has reached the end of its fatigue life. A lot of work has been reported for understanding the nature of barrel wear, its rate of progression and ways to minimise the rate of wear. In this work, the actual effect of barrel wear on the MV of a typical artillery shell has been studied. It has been shown that the loss in MV does not vary linearly with the wear. A co-relation between the loss of MV and the barrel wear has been attempted to be determined.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125670970","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: 2
Dynamic evaluation of Bi modular charge system for 155 mm Artillery gun 155毫米火炮双模装药系统动态评价
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069637
Sujit Kumar Shee, Santu Chakroborty, A. Banerjee, B. Hazarika
{"title":"Dynamic evaluation of Bi modular charge system for 155 mm Artillery gun","authors":"Sujit Kumar Shee, Santu Chakroborty, A. Banerjee, B. Hazarika","doi":"10.1109/ICORT46471.2019.9069637","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069637","url":null,"abstract":"The Bi-Modular Propellant Charge System was introduced for 155mm artillery gun which is simple in design and can be adopted in a flexible manner. This novel Modular Charge System (MCS) eliminates all the drawbacks of bag charge system. The state-of-art technology of modular charge system which eliminates wastage of costly incremental propellant charges and safety hazards. This MCS uses rigid combustible cases, which are called modules. These modules can be combined as per requirement to form propellant charge system. Thus, the primary function of the BMCS is to provide adequate pressure to propel a projectile with the required muzzle velocity as applicable to specific range. One more advantage of this MCS is that rigid combustible charge cases allow the charges to be handled by an automated loading system, a process that could be difficult with bagged charges.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"12 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114020733","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
Least Square Regression based Non-Uniformity Correction for Infra-red Focal Plane Arrays 基于最小二乘回归的红外焦平面阵列非均匀性校正
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069660
N. Kumar, Meenakshi Massey, Neeta Kandpal
{"title":"Least Square Regression based Non-Uniformity Correction for Infra-red Focal Plane Arrays","authors":"N. Kumar, Meenakshi Massey, Neeta Kandpal","doi":"10.1109/ICORT46471.2019.9069660","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069660","url":null,"abstract":"In last few decades, a considerable amount of research has been done in the development of Infra Red (IR) Focal Plane Array (FPA) technology. Due to this, there has been a proliferation of higher sensitivity and larger format FPAs with smaller pixel pitch. Even with the state-of-art VLSI manufacturing techniques, variations in response of individual detector elements of FPA results in spatial non-uniformity for isothermal blackbody source. Generally, two-point Non Uniformity Correction (NUC) technique is used to tackle this problem. For reducing Residual Non Uniformity (RNU) the entire operating range of sensor is divided in segments and piecewise two-point NUC is performed. The offset and gain coefficients of each such segment are calculated and stored in the form of table in non-volatile memory. During the image formation process these coefficients compensate spatial non-uniformity. In the present approach a linear Least Square Regression based NUC (LSR-NUC) technique is suggested, which relies on knowledge of the true irradiance and corresponding detector outputs at distinct temperature levels. A close approximation of irradiances at these points is explored in the form of the best fit line by minimizing sum of square of errors. In this way a gain and offset value for each detecting element is generated and recorded in memory, which is utilized during real time image formation process. After performing LSR-NUC, RNU of FPA is calculated and its comparison is done with RNU calculated after conventional two-point NUC and a remarkable gain in performance has been observed specially in temperature ranges which are not in the vicinity to points chosen for two-point NUC.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115007654","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
Design Challenges in Printed Circuit Boards for EMC Compliance 符合EMC要求的印刷电路板设计挑战
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069658
S. Marndi, Niladri Roy
{"title":"Design Challenges in Printed Circuit Boards for EMC Compliance","authors":"S. Marndi, Niladri Roy","doi":"10.1109/ICORT46471.2019.9069658","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069658","url":null,"abstract":"The trend of using high speed signals with fast rise and fall time, mixed signal design and demand of compact electronic products has increased the criticality of printed circuit boards design. Electromagnetic Compatibility (EMC) is becoming a crucial issue in design of modern military electronics systems. Improper printed circuit board designs can cause to performance degradation, failure of products and non-compliance with EMC regulations. EMC guidelines set by various standard institutions ensure the reliability and safe operation of the products in an electromagnetic environment. This paper describes various design techniques that has been considered while designing various high density and complex printed circuit boards for Indigenously developed Radar systems, that not only reduces the electromagnetic emissions but also make the products Electromagnetic Compatibility (EMC) compliance.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125858120","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
Slotted Microstrip Antenna for 5.8 GHz ISM Band Applications 用于5.8 GHz ISM频段应用的开槽微带天线
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069639
T. K. Das, Durga Prasad Mishra, S. Behera
{"title":"Slotted Microstrip Antenna for 5.8 GHz ISM Band Applications","authors":"T. K. Das, Durga Prasad Mishra, S. Behera","doi":"10.1109/ICORT46471.2019.9069639","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069639","url":null,"abstract":"In this paper, a printed monopole antenna with a slotted ground plane is presented. The antenna is energized by a $50-Omega$ feedline having a sigma-shaped radiator. The proposed design resonates at 5.8 GHz with an operational bandwidth from 5.71 GHz–5.9 GHz. The radiation characteristics of the structure show the realized gain value greater than 3.6 dB in the entire operating frequency range. The antenna has an overall dimension $0.55lambdatimes 0.55lambdatimes 0.03lambda$ ($lambda$ representing resonating wavelength) and it exhibits radiation efficiency more than 55% throughout the band. This antenna can be suitable for 5.8 GHz ISM band applications.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129202153","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
RADHAZ and HERO safety in the vicinity of high power RF Transmitters RADHAZ和HERO在高功率射频发射机附近的安全性
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069665
M. Biswal, Mangal Singh, S. K. Patra, S. Sahu, Ramakanta Behera
{"title":"RADHAZ and HERO safety in the vicinity of high power RF Transmitters","authors":"M. Biswal, Mangal Singh, S. K. Patra, S. Sahu, Ramakanta Behera","doi":"10.1109/ICORT46471.2019.9069665","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069665","url":null,"abstract":"The ever-growing use of wireless technologies has lead to increased exposure to RF radiation. This causes health hazard to living being and also affects machinery in scientific and industrial environment. This is termed as Radiation hazard (RADHAZ). Increased use of high power RF transmitters has been a concern in recent times. This paper attempts to analyze the effect of high power radiating sources in the vicinity at a scientific location. RF measurement was carried out using a spectrum analyser. The equivalent electric field were obtained from the measured power level. Measurement of uncontrolled RF sources such as TV Transmitters, Radio Signals and Mobile base stations were also measured. The measurement data were analysed w.r.t hazards of electromagnetic radiation to ordnance (HERO) guidelines of US defence standards. The US defence has laid down guidelines, called as the MIL-STD-64 standards which is also followed in majority of countries including India. Safety related conclusion have been derived from the measured results.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131073804","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
Global Navigation Satellite Systems and Indian Defence Research - A Review 全球导航卫星系统和印度国防研究综述
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069614
Mrinal Goswami, R. Ghatak, A. Bose
{"title":"Global Navigation Satellite Systems and Indian Defence Research - A Review","authors":"Mrinal Goswami, R. Ghatak, A. Bose","doi":"10.1109/ICORT46471.2019.9069614","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069614","url":null,"abstract":"In this paper an attempt has been made to review the evolution of Global Navigation Satellite System (GNSS) towards a Multi-GNSS environment through global and regional existing systems and initiation of new systems and its impact on the Indian Defence Research with special focus on the Missile Development Program in Defence Research and Development Organization (DRDO). The various components of stage wise GNSS evolution, the availability of the satellites in the Indian Sub-continent, signal availabilityand reliability of the various constellations and its effect on missile development program has been highlighted in this paper starting from the first use of United States-developed Global Positioning System (GPS). This paper also comments on the possible future use of GNSS in Indian Missile Development Program with introduction of other such systems-GLONASS, Galileo, BEIDOU and Regional Based Navigation Systems QZSS of Japan and IRNSS/NAVIC, the Indian System.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128133546","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: 4
Unmanned Aerial System (UAS) Hazard identification, reliability, risk analysis & Range Safety 无人机系统(UAS)危害识别，可靠性，风险分析和范围安全
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069620
S. Basavaraju, V. A. Rangan, S. Rajgopal
{"title":"Unmanned Aerial System (UAS) Hazard identification, reliability, risk analysis & Range Safety","authors":"S. Basavaraju, V. A. Rangan, S. Rajgopal","doi":"10.1109/ICORT46471.2019.9069620","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069620","url":null,"abstract":"Low speed Unmanned Aerial Vehicles (UAVs) are currently being used in the military for Surveillance and Target Acquisition (SATA) missions. High speed UAVs are used for target/decoy practice or weapon evaluation purposes. Aeronautical Development Establishment Bangalore is a power house for design, development, testing and evaluation of UAVs. Technological Innovation and increasingly diverse applications are two key drivers of the rapid expansion of UAV Technology. The global defence budget for UAV procurement is expanding, and in the future the market for civilian UAVs is expected to outmatch that of the military. Precision Agriculture, meteorology, conservation and border control are just a few of the diverse areas in which UAVs are making a significant impact. Hence the goal of regulating UAV operations is to ensure an appropriate level of safety. This paper will focus on UAV Equivalent Level of Safety (ELOS), safety assessments, and Ground impact Fatality Risk Modeling, system reliability requirements, collision probability, accident investigation considerations and risk mitigation for Unmanned Aerial System.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121614982","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
A Compact Size Low Noise Amplifier for GNSS upper L Band 一种用于GNSS上L波段的小尺寸低噪声放大器
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069631
M. Ramanaidu, R. Ghatak
{"title":"A Compact Size Low Noise Amplifier for GNSS upper L Band","authors":"M. Ramanaidu, R. Ghatak","doi":"10.1109/ICORT46471.2019.9069631","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069631","url":null,"abstract":"In this paper, a novel topology of a low noise amplifier (LNA) for the GNSS upper L band ranging from 1.559–1.61 GHz is presented. The designed LNA works in the frequency range 1.53–1.73 GHz having a gain of 10.3 dB and exhibits a minimum noise figure of 0.9 dB. In realizing the LNA, pHEMT transistor is used for the high linearity, high gain and low noise. The low values of input and output return losses reflect the suitability of the matching networks at the input and output of the LNA. High degree of linearity is achieved with output 1-dB compression (P1dB) at +5 dBm and output third order intercept (OIP3) at +17.363 dBm.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117314254","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
Multiple Hypothesis based Failure Diagnosis for Range Safety 基于多假设的靶场安全故障诊断
2019 International Conference on Range Technology (ICORT) Pub Date : 2019-02-01 DOI: 10.1109/ICORT46471.2019.9069634
Desham Mitra, P. Halder, Shrabani Ghosh, S. Mukhopadhyay
{"title":"Multiple Hypothesis based Failure Diagnosis for Range Safety","authors":"Desham Mitra, P. Halder, Shrabani Ghosh, S. Mukhopadhyay","doi":"10.1109/ICORT46471.2019.9069634","DOIUrl":"https://doi.org/10.1109/ICORT46471.2019.9069634","url":null,"abstract":"This paper presents an approach of fault diagnosis and detection of actuator and sensor faults in application to aerospace vehicle and its impact on range safety. It uses analytical method for fault detection. The proposed method uses multiple diagnosers to generate the residual signals. Hypothesis testing is carried out on these residual signals to decide the fault that has actually occurred in the actuator or sensor.","PeriodicalId":147815,"journal":{"name":"2019 International Conference on Range Technology (ICORT)","volume":"362 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124557754","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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