{"title":"MESAR, Sampson & Radar Technology for BMD","authors":"W. Stafford","doi":"10.1109/RADAR.2007.374256","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374256","url":null,"abstract":"Over more than 20 years BAE Systems Integrated System Technologies Ltd. (Insyte) in the UK have been participating in the innovative Multi-function Electronically Scanned Adaptive Radar (MESAR) Programme. This has led to the Engineering Development and first of class production contract for the Sampson radar which is to be fitted for the UK T45 Destroyer as part of the PAAMS weapon system. The MESAR programme, which was jointly funded by UK MoD and Insyte, began in 1982 and has resulted in two radar equipments. MESAR1 was an S-band prototype active array multifunction radar which took part in three trials programmes in the period 1989-1995. The MESAR1 programme pioneered the development of Tx/Rx modules, digital adaptive beamforming and real time radar, radar control all of which were successfully demonstrated in trials. MESAR2 is an S-band pre-production active array multifunction radar which began development in 1995 and subsequently undertook a 2 year trials programme at a UK MoD trials range at Benbecula in the Outer Hebrides, Scotland. The objective of MESAR2 was to demonstrate the application of MESAR technology to Ballistic Missile Defence. The programme extended and evolved the technology developed in ME SARI and conclusively proved","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129177280","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}
A. Shackelford, J. D. Graaf, S. Talapatra, S. Blunt, Karl Gerlach
{"title":"Adaptive Pulse Compression: Preliminary Experimental Measurements","authors":"A. Shackelford, J. D. Graaf, S. Talapatra, S. Blunt, Karl Gerlach","doi":"10.1109/RADAR.2007.374219","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374219","url":null,"abstract":"Preliminary experimental results from the adaptive pulse compression (APC) test bed are presented. A recently proposed adaptive processing technique has been shown via simulation to improve upon current pulse compression techniques through a process known as reiterative minimum mean-square error estimation (RMMSE). The RMMSE technique forms the basis of the APC and the Multistatic APC (MAPC) algorithms. In this paper, we present experimental results demonstrating the feasibility of these approaches. Several polyphase waveforms have been implemented in an experimental test bed. Initial results show that small non-linearities in the waveform generation process have only a marginal impact on the estimation performance of the algorithms. A discussion of the APC test bed followed by experimental results demonstrating the performances of the APC and MAPC algorithms are presented. These initial experimental results indicate that the APC approach is able to successfully mitigate pulse-compression sidelobes on measured data, and that the MAPC algorithm can successfully mitigate both the mutual-interference from shared-spectrum radar signals and pulse compression sidelobes on measured data.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127551843","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}
{"title":"Adaptive WEighting of Signals via One Matrix Entity (AWESOME)","authors":"Yao Xie, Jian Li, J. Ward","doi":"10.1109/RADAR.2007.374304","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374304","url":null,"abstract":"We present the Adaptive WEighting of Signals via One Matrix Entity (AWESOME) algorithm for adaptive array beampattern synthesis. The array geometry can be arbitrary. Compared to the conventional approaches of using data-adaptive weight vectors at the array output for beampattern synthesis, which we refer to as the Vector Weighting Approaches (VWA), weight matrices are used at the array output by AWESOME for much improved flexibility for adaptive array beampattern synthesis. Globally optimal solutions can be determined efficiently for AWESOME due to the convex optimization formulations. AWESOME can be considered as the Semidefinite Relaxation (SDR) of the VWA counterpart. Numerical examples are presented to show that AWESOME allows for strict controls of main-beam shape and peak sidelobe level while retaining the capability of adaptive nulling of strong interferences and jammers.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124687810","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}
{"title":"Frequency Diverse Array Antenna with Periodic Time Modulated Pattern in Range and Angle","authors":"M. Seçmen, S. Demir, A. Hizal, T. Eker","doi":"10.1109/RADAR.2007.374254","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374254","url":null,"abstract":"A general analysis of a frequency diverse transmit array antenna with a periodic modulated pattern in range, angle and time is presented. This antenna array system makes a continuous scanning in range and angle without using any phase shifters. The scanning is achieved using the frequency diversity by inserting a small amount of progressive frequency shift to each antenna element. The theory shows that there is the same modulation pattern in time, range and angle by taking the remaining two parameters fixed. The simulation results for radiation patterns of a binomial distribution array are presented. The expressions for determining the position and the angular bearing of a target for this type of antenna array system are given.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126133341","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}
{"title":"Solid State X-Band Airport Surface Surveillance Radar","authors":"P. Lanzkron, E. Brookner","doi":"10.1109/RADAR.2007.374299","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374299","url":null,"abstract":"Raytheon has developed a new solid state transmitter for a low cost airport surface detection system. The transmitter as part of a low cost transceiver became the heart of the Federal Aviation Administration's Airport Surface Detection Equipment -Model X (ASDE-X) system. The all weather performance of the system was helped by a unique constant false alarm rate (CFAR) algorithm that was introduced to deal with the high rain returns on runways. This paper discusses the Raytheon ASDE-X transceiver and the new local area CFAR.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"18 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126670306","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}
R. Ghayoula, Ali Gharsallah, N. Fadlallah, M. Rammal
{"title":"Artificial Neural Networks ANN Approach for the Synthesis of Patch Antennas","authors":"R. Ghayoula, Ali Gharsallah, N. Fadlallah, M. Rammal","doi":"10.1109/RADAR.2007.374229","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374229","url":null,"abstract":"Patch antennas plane networks have been used largely in communication systems. Their capability to change radiation pattern electronically, multi-beam capacity and high spatial resolution has made them attractive for mobile communication applications. The work presented in this paper refers to the synthesis of periodic patch antennas plane networks supplied with coaxial lines. The method of synthesis used for this type of networks let's possible an optimal approach for the desired radiation pattern specified by a gauge sensible for source excitation and space distribution of the radiant sources. The development of the synthesis is based on the neural networks technique.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128125265","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}
{"title":"Obtaining a 35x Speedup in 2D Phase Unwrapping Using Commodity Graphics Processors","authors":"P. Karasev, D. Campbell, M. Richards","doi":"10.1109/RADAR.2007.374282","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374282","url":null,"abstract":"Graphics processing units (GPUs) are a powerful tool for numerical computation. The GPU architecture and computational model are uniquely designed for high-resolution high-speed grid-based calculations. This capability can be utilized to accelerate certain classes of compute-intensive radar signal processing algorithms. Characteristics of a problem well-suited for computation on a GPU include high levels of data parallelism, low control logic, uniform boundary conditions, and well-defined input and output. We describe the implementation of two-dimensional multigrid least-squares weighted phase unwrapping on a GPU and demonstrate a large speedup over C and MATLAB implementations. Details of the GPU computation are provided. Background information on the GPU architecture and its applicability to general-purpose computation is discussed.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130868742","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}
{"title":"Future Surface Radar technology: From Air Defence to Air and Missile Defence","authors":"O. Adrian","doi":"10.1109/RADAR.2007.374189","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374189","url":null,"abstract":"This paper describes how Air Defence radars are evolving from general Air Defence missions (single-mission radar) to Air and Missile Defence missions (multi-mission radar) in order to cope with news threats for Homeland Defence and External Theatre Defence. After a description of the radar requirements for general Air Defense and Missile Defence, Missile Defence impacts on radar sensors are explained. It is shown that conventional Air Defence radar cannot completely meet at the same time both Air Defence and Missile Defence requirements. The present multi-mission, multifunction MASTER A developed by Thales is described. The final parts explain the Thales portfolio evolution from MASTER A to M3R and the related S Band product policy.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132785051","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}
{"title":"Inverse Precision Velocity Update for Monopulse Calibration","authors":"K. Krikorian, Yu-Hong Kwong, R. Rosen","doi":"10.1109/RADAR.2007.374240","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374240","url":null,"abstract":"A critical function of a radar system is to precisely locate moving targets for identification and targeting. The moving target location is determined with respect to the actual boresight of the radar antenna performing the angle measurements. The accuracy of these angle measurements is often limited by bias errors (e.g., radome errors, sum and difference channel isolation and imbalances, and harmonization errors) which are not related to the signal-to-noise ratio of the received radar return. In effect, the bias errors preclude accurate monopulse angle measurement to a target, even if the target is clearly visible by the radar. A new technique is proposed which avoids these limitations, deriving a correction for the electrical boresight of a monopulse antenna mounted on a moving platform. It exploits highly accurate velocity measurements from currently available low-cost INS/GPS systems with carrier phase measurements. The measured velocity coupled with advanced multichannel processing of a monopulse SAR mode provide independent pointing error estimates from many pixels. This patented technique has been named Inverse Precision Velocity Update (or Inverse PVTJ) for monopulse calibration. The angle estimates from a selected set of pixels are weighted and averaged to obtain a precise estimate of the monopulse beam pointing for accurate moving target geolocation.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126955130","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}
{"title":"Spatially Waveform Diverse Radar: Perspectives for High Frequency OTHR","authors":"G. Frazer, Y. Abramovich, B.A. Johnson","doi":"10.1109/RADAR.2007.374247","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374247","url":null,"abstract":"The application of multi-input multi-output (MIMO) radar concepts to HF over-the-horizon radar is considered to improve radar timeline management flexibility and to permit adaptivity on transmit. MIMO radar concepts in the literature are inconsistent and in this paper the taxonomy of MIMO radar is clarified and distinctions between different MIMO radar types drawn. The term \"spatially waveform diverse radar\" is introduced, and performance equivalences between element-space and beamspace orthogonality discussed. Finally, we outline significant constraints on the design of waveform sets for the case of transmit arrays where (at least for some part of the operational regime) the array inter-element spacing is less than one half wavelength.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"202 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114018078","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}