2010 IEEE International Symposium on Phased Array Systems and Technology最新文献

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GDPAA Advanced Technology Demonstration overview and results GDPAA先进技术演示概述和结果
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613380
M. Henderson, Mark Davis, M. Huisjen
{"title":"GDPAA Advanced Technology Demonstration overview and results","authors":"M. Henderson, Mark Davis, M. Huisjen","doi":"10.1109/ARRAY.2010.5613380","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613380","url":null,"abstract":"The United States Air Force (USAF), through the Air Force Research Laboratories (AFRL) and the Space and Missile Command (SMC), has been working with the aerospace industry to develop technologies to incorporate the rapid beam pointing capabilities and multi-beam pointing capabilities of electronically steered arrays (ESA) to the Air Force Satellite Control Network (AFSCN). Investigations at AFRL have indicated that an ESA can be a low-cost solution to provide increased capability to AFSCN to meet growing capacity needs. Additional AFRL studies have indicated that spherical array geometry is optimal for ground-based satellite control antennas for performance and deployment cost of an ESA. An innovative Geodesic Dome Phased Array Antenna (GDPAA) was put forth as a significant and viable improvement to the conventional, 50-year-old parabolic reflector antenna systems currently in use. This paper summarizes the design and development of the GDPAA Advanced Technology Demonstration (ATD) program at Ball Aerospace and presents the results of demonstration testing performed at Schriever Air Force Base (SAFB).","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114992494","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: 7
Optimized amplitude taper for a linear array of multiple true-time-delay beams 多真延时波束线性阵列的最佳振幅锥度
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613349
Junwei Dong, R. Cheung
{"title":"Optimized amplitude taper for a linear array of multiple true-time-delay beams","authors":"Junwei Dong, R. Cheung","doi":"10.1109/ARRAY.2010.5613349","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613349","url":null,"abstract":"This paper proposes a systematic approach of determining the optimal amplitude taper for a shared aperture linear array that possesses true-time-delay (TTD) multiple beam functionality. Conventionally, uniform taper is used to achieve maximum gain, while Taylor taper is widely used in low side lobe applications. However, when multiple beams are generated across ultra-wideband frequencies, they seem cumbersome to maintain a good balance between the side lobe level (SLL) and peak gain (or beam width). In this paper, an optimal amplitude taper is characterized as the one that meets a prerequisite average side lobe level (SLL) and at the mean time maintains a reasonable peak gain for all scanning beams in the array pattern across frequency band. To achieve so, an objective function is derived using the classical array theory, and then numerical optimization is used to obtain the optimal solution. As an example, an 8-element spiral antenna array is demonstrated. The optimal taper achieves SLL of 18.3dB for scanning range of ±22degrees across 6~18GHz. The merit of the optimized taper is demonstrated by comparison with the uniform and Taylor tapers.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125135422","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
Spread Spectrum Digital Beamforming (SSDBF) radar 扩频数字波束形成雷达
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613293
M. Bergamo
{"title":"Spread Spectrum Digital Beamforming (SSDBF) radar","authors":"M. Bergamo","doi":"10.1109/ARRAY.2010.5613293","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613293","url":null,"abstract":"Spread Spectrum Digital Beamforming (SSDBF) overcomes the CSWAP and the scalability in bandwidth-and-frequency limitations of Conventional Digital Beam Forming (CDBF) by eliminating the requirement of “one digital transceiver per element” while enabling fully capable digital beamforming with minimum hardware (and consequently minimum volume and heat dissipation) per element. SSDBF enables low-cost/low-profile/low-power digital beam forming phased arrays that scales in frequency (L through Ka and higher), bandwidth (100's MHz) and subarray size (100's elements per subarray) with a single down-converter, single digital receiver and single Nyquist-rate ADC for the entire subarray. It achieves this by replacing the MMIC T/R module at each element with much simpler bi-phase re-modulating hardware, and by re-modulating and aggregating the return signal incident at each element such that it can perfectly recover the complex baseband-equivalent of the RF signal of each element without mutual interference and with negligible noise performance degradation. The bi-phase re-modulator at each element can be extremely small and low power and amenable to implementations as simple as a single RF switch mounted directly at the antenna element with associated ON/OFF switch control logic built on the back. Thus SSDBF truly enables flat, thin, lightweight conformal phased arrays and has the potential of reducing phased array costs by, possibly, multiple orders of magnitude relative to CDBF state-of-the-art. The SSDBF parameters and waveforms are flexible, programmable and can be tailored and adapted, practically, to support any radar or communications applications. In a project for DARPA1, Applied Radar is developing an X-band SSDBF-based radar prototype in which the SSDBF features and performance have been demonstrated. In this paper, we describe the SSDBF method for a radar application including simulation, indoor testbed and open-range test results.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115181618","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: 7
Beampattern optimisation for sub-arrayed MIMO radar for large arrays 面向大阵列的子阵列MIMO雷达波束方向优化
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613312
D. Wilcox, M. Sellathurai
{"title":"Beampattern optimisation for sub-arrayed MIMO radar for large arrays","authors":"D. Wilcox, M. Sellathurai","doi":"10.1109/ARRAY.2010.5613312","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613312","url":null,"abstract":"The estimation of the direction of arrival (DOA) of signals in the far-field of an array has been an area of continued research. Recent advances in MIMO radar techniques have led to results whereby prior knowledge of the approximate target locations is used to generate arbitrary signals which are transmitted from an active array to improve DOA estimates. This would be a useful in a scenario such as target tracking. However, this neglects the complexities of the hardware required for larger arrays, and further, the amount of computation required on the transmit side alone. A sub-optimal method employing sub-arrays to reduce hardware requirements, and a low complexity algorithm to determine the optimal steering vectors for the arrays is presented and compared to the optimal full diversity transmit strategy.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116146763","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
Adaptive null-steered interference-rejection for a mobile satellite receiver 移动卫星接收机的自适应零导向干扰抑制
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613244
R. Musselman, Shawn Killpack, Brett Killion, Eric H. Herbort, P. Kim, R. Todd
{"title":"Adaptive null-steered interference-rejection for a mobile satellite receiver","authors":"R. Musselman, Shawn Killpack, Brett Killion, Eric H. Herbort, P. Kim, R. Todd","doi":"10.1109/ARRAY.2010.5613244","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613244","url":null,"abstract":"One of the most useful applications of antenna arrays is interference rejection. This paper describes an antenna array that was designed for the sole purpose of rejecting interference of a satellite receiver from a close-proximity jamming source. Since this jammer can move relative the satellite antenna, the antenna array must adaptively adjust its null direction accordingly. The system consists of a six-element array of circular fractal patch antennas in conjunction with a receiver channel that is dedicated to interference detection and tracking.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122444950","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
Amplitude and phase quantization effects on synthesized array factors including one beam and one prescribed null 振幅和相位量化对包括一个波束和一个规定零的合成阵列因素的影响
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613241
M. Caillet, Y. Antar, M. Clénet
{"title":"Amplitude and phase quantization effects on synthesized array factors including one beam and one prescribed null","authors":"M. Caillet, Y. Antar, M. Clénet","doi":"10.1109/ARRAY.2010.5613241","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613241","url":null,"abstract":"In this article, investigations into the amplitude and phase quantization effects for a 16-element linear array with half-wavelength element spacing and digital phase shifters are reported for an array factor having a main beam and a prescribed null. The main beam is fixed, and the prescribed null angular position varies between 1 and 60°. Based on results with ideal amplitude and phase, the effects of phase quantization on the radiation characteristics are studied for several main beam positions. Particularly, one can notice that the main beam angular position and half-power beamwidth errors are similar to the results with exact phase. However, phase quantization greatly affects the prescribed null position and depth.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122616075","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
Efficient approach for fast synthesis of phased arrays with the aid of a hybrid genetic algorithm and a smart feed representation 基于混合遗传算法和智能馈源表示的相控阵快速合成方法
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613268
A. Boriskin, M. V. Balaban, O. Y. Galan, R. Sauleau
{"title":"Efficient approach for fast synthesis of phased arrays with the aid of a hybrid genetic algorithm and a smart feed representation","authors":"A. Boriskin, M. V. Balaban, O. Y. Galan, R. Sauleau","doi":"10.1109/ARRAY.2010.5613268","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613268","url":null,"abstract":"The efficiency of the approach described in the paper is provided thanks to the following three factors: (i) compact form representation of a primary feed with a given radiation pattern simulated by a combination of complex dipoles, (ii) hybridization of genetic and steepest descent gradient algorithms, and (iii) smart encoding schemes used for storing parameters of the array antennas implemented in order to reduce the number of unknowns needed to describe the system. These features enabled us to develop a reliable tool capable of fast synthesis of array antennas for various applications. The algorithm is approbated on synthesis of periodic linear arrays with narrow and flat-top beams. Comparing to a standard genetic algorithm, a twice faster convergence rate and ultimate stability in hitting the global extrema is demonstrated.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122633607","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: 7
Ku-Band Low-Profile Rx-only and Tx-Rx antennas for Mobile Satellite Communications 用于移动卫星通信的ku波段低轮廓Rx-only和Tx-Rx天线
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613316
S. Vaccaro, F. Tiezzi, M. F. Rua, Cesar Dominguez Grano De Oro
{"title":"Ku-Band Low-Profile Rx-only and Tx-Rx antennas for Mobile Satellite Communications","authors":"S. Vaccaro, F. Tiezzi, M. F. Rua, Cesar Dominguez Grano De Oro","doi":"10.1109/ARRAY.2010.5613316","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613316","url":null,"abstract":"This paper presents two different Ku-Band Low-Profile antenna concepts for Mobile Satellite Communications. The antennas are based on low-cost hybrid mechanical-electronic steerable solutions but, while the first one allows a broadband reception of a satellite signal (Receive-only antenna concept), the second one provides transmit and receive functions for a bi-directional communication link between the satellite and the mobile user terminal (Transmit-Receive antenna). Both examples are suitable for integration in land vehicles and aircrafts.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114575312","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: 19
A discrete aperiodic active lens for multibeam satellite applications 用于多波束卫星的离散非周期有源透镜
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613318
G. Ruggerini, G. Toso, P. Angeletti
{"title":"A discrete aperiodic active lens for multibeam satellite applications","authors":"G. Ruggerini, G. Toso, P. Angeletti","doi":"10.1109/ARRAY.2010.5613318","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613318","url":null,"abstract":"In the paper one aperiodic constrained active lens generating a multiple spot contiguous beams coverage is proposed. The antenna is optimized in terms of number of radiators, dimensions, weight, and power amplifiers efficiency. The antenna represents an interesting architecture based on a single aperture able to replace conventional antennas based on multi reflector dishes onboard geo or non-geo stationary satellites. Experimental results recently achieved are presented.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129736108","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
Integration of an X-band microstrip patch array and beamformer for a multifunction antenna array 用于多功能天线阵列的x波段微带贴片阵列和波束形成器的集成
2010 IEEE International Symposium on Phased Array Systems and Technology Pub Date : 2010-10-28 DOI: 10.1109/ARRAY.2010.5613256
W. Hunsicker, K. Naishadham, R. Hasse
{"title":"Integration of an X-band microstrip patch array and beamformer for a multifunction antenna array","authors":"W. Hunsicker, K. Naishadham, R. Hasse","doi":"10.1109/ARRAY.2010.5613256","DOIUrl":"https://doi.org/10.1109/ARRAY.2010.5613256","url":null,"abstract":"Light-weight phased array antennas for aerospace applications require utilizing the same antenna aperture to provide multiple functions with dissimilar radiation pattern specifications (e.g., multi-band operation for communications and tracking). Multi-functional antennas provide advantages over aggregate antenna clusters by reducing space requirements, and can aid in the optimal placement of all required apertures to provide adequate isolation between channels. To achieve needed isolation between antenna bands when multiple radiators are in close proximity requires proper selection of antenna topology and the feed network design. This paper seeks to highlight design challenges in the implementation of an X-band (12 GHz) microstrip patch array into a superstrate layer covering printed dual-band slot loop antennas. We describe a novel feature in the proposed design wherein the high frequency array conforms to a specific topology allowed by lower frequency elements to create a single multi-band, multi-functional aperture.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132644556","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: 6
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