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Waveform design by Task-Specific Information 基于任务特定信息的波形设计
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494501
Hyoung-soo Kim, N. Goodman
{"title":"Waveform design by Task-Specific Information","authors":"Hyoung-soo Kim, N. Goodman","doi":"10.1109/RADAR.2010.5494501","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494501","url":null,"abstract":"We propose a new waveform design metric called Task-Specific Information (TSI). As its name suggests, TSI is an information-theoretic metric formulated for a specific task or set of tasks. For example, in this paper we consider the problem of correctly classifying a linear system from a set of known alternatives. The TSI metric directly quantifies information about the hypotheses while previous information-based approaches quantify mutual information related to potential system realizations. Thus the TSI framework is a more direct measure of task-related performance. In addition, for the problem statement considered in this paper it is possible to find a globally optimum solution through gradient-based search techniques. We compare the performance of TSI and conventional waveform designs.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117270109","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
Frequency-hopping code optimization for MIMO radar using the hit-matrix formalism 基于命中矩阵形式的MIMO雷达跳频码优化
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494546
A. Srinivas, S. Badrinath, V. Reddy
{"title":"Frequency-hopping code optimization for MIMO radar using the hit-matrix formalism","authors":"A. Srinivas, S. Badrinath, V. Reddy","doi":"10.1109/RADAR.2010.5494546","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494546","url":null,"abstract":"There has been a recent interest in the application of multiple-input multiple-output (MIMO) communication concepts to radars. While traditional phased-array radars transmit coherent waveforms from their many antenna elements, MIMO radars transmit incoherent waveforms from their transmitters, which offer additional benefits like spatial diversity and spatial resolution. In recent literature, the optimization of orthogonal frequency-hopping waveforms for MIMO radars has been discussed. This optimization is done using a ‘cost function’ derived from a newly formulated MIMO radar ambiguity function. In our paper, we extend the scope of this ambiguity function to large values of target Doppler. We also propose the use of the ‘hitmatrix’ as a tool to optimize frequency-hopping codes under the large Doppler scenario, since it results in a cost function with a significantly lower computational complexity. The hit-matrix is a generalization of the hit-array, which has been used in the context of frequency-hopping waveforms for phased-array radars.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115814154","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: 11
Super-resolution techniques in meteorological radars: The example of wind turbines 气象雷达中的超分辨率技术:以风力涡轮机为例
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494488
B. Gallardo-Hernando, F. Pérez-Martínez, J. Muñoz-Ferreras, F. Aguado-Encabo
{"title":"Super-resolution techniques in meteorological radars: The example of wind turbines","authors":"B. Gallardo-Hernando, F. Pérez-Martínez, J. Muñoz-Ferreras, F. Aguado-Encabo","doi":"10.1109/RADAR.2010.5494488","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494488","url":null,"abstract":"The use of wind turbines to generate electricity has become a major problem in meteorological radars. Due to the low frequency resolution that these radars show, the most representative wind turbine radar signature characteristics can't be observed in operational exploration modes by using the classical Fourier spectral estimation. In this paper, we propose super-resolution techniques to improve Fourier's Doppler resolution and provide experimental results.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114619933","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: 5
Stable filters: A robust signal processing framework for heavy-tailed noise 稳定滤波器:一个鲁棒的重尾噪声信号处理框架
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494576
J. P. Nolan, J. G. González, R. Nunez
{"title":"Stable filters: A robust signal processing framework for heavy-tailed noise","authors":"J. P. Nolan, J. G. González, R. Nunez","doi":"10.1109/RADAR.2010.5494576","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494576","url":null,"abstract":"The radar systems of the twenty-first century are being pushed to improve signal detection beyond current capabilities. Current systems perform poorly when the clutter departs from the Gaussian model and becomes heavy-tailed. We introduce stable filters as a general framework for signal processing in heavy-tailed scenarios. The performance gains attainable from these filters can provide significant improvements to digital systems in impulsive noise. Stable filters make use of advanced numerical optimizations to overcome the computational complexity that is common in non-linear approaches. Current performance results show superior performance of stable filters when compared with conventional linear approaches.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126919878","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: 13
Design considerations for a modern naval fire control radar 现代海军火控雷达的设计考虑
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494547
L. Lagerkvist
{"title":"Design considerations for a modern naval fire control radar","authors":"L. Lagerkvist","doi":"10.1109/RADAR.2010.5494547","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494547","url":null,"abstract":"This document describes some design considerations for a modern naval fire control and tracking radar. The main purpose of this type of system is to track one, or sometimes a few, targets extremely accurately. Some of the basic design considerations have not changed considerably over the years, even if the solution is different due to e.g. increased processor capacity. This paper will briefly outline some of these basic considerations but will concentrate on the areas where new considerations affect the design.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125947081","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
Optimal block quantization for SAR data SAR数据的最优块量化
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494597
P. Guccione, C. Cafforio, A. M. Guarnieri
{"title":"Optimal block quantization for SAR data","authors":"P. Guccione, C. Cafforio, A. M. Guarnieri","doi":"10.1109/RADAR.2010.5494597","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494597","url":null,"abstract":"A variable bit rate coding scheme designed for new generation SAR satellites is presented. This coding is based on previous schemes of Block Adaptive Quantizer (BAQ) [1] and is intended as a possible improvement over Sentinel-1 FDBAQ [3,4]. In this project, the number of quantizers is considered a design choice and the optimization is carried out looking for a set of reflectivity classes in which partition all the imaged areas on the Earth. Superior performances to those envisaged for Sentinel-1 FDBAQ are obtained in terms of SNR vs. average rate. Results come from simulations based on a 16-bit mosaic of C band reflectivity obtained by ESRIN from ENVISAT GM data [6] and Wien University database of ENVISAT WSM radar reflectivity [10].","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125730978","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: 5
A robust Chinese remainder theorem with its applications in moving target Doppler estimation 一个鲁棒的中国剩余定理及其在运动目标多普勒估计中的应用
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494420
Xiaowei Li, X. Xia, Hong Liang
{"title":"A robust Chinese remainder theorem with its applications in moving target Doppler estimation","authors":"Xiaowei Li, X. Xia, Hong Liang","doi":"10.1109/RADAR.2010.5494420","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494420","url":null,"abstract":"The Chinese remainder theorem (CRT) is an ancient result about simultaneous congruences in number theory, which reconstructs a large integer from its remainders modulo several moduli. It is well known that the CRT has tremendous applications in many fields, such as computing and cryptography, an important one of which could be radar signal processing and radar imaging. However, it is also well-known that CRT is not robust in the sense that a small error in any remainders may cause a larger error in the reconstruction result, which will lead to a non-robust estimation. In this paper, we introduce a robust reconstruction algorithm called robust CRT. We show that, using this robust CRT algorithm, the reconstruction error is upper bounded by the maximal remainder error range named remainder error bound, if the remainder error bound is less than one quarter of the greatest common divisor (gcd) of all the moduli. Although CRT has existed for about 2500 years, this robustness is the first time in the literature. Then, we show how this robust CRT can be used into the field of radar detection and Doppler ambiguity resolution, especially for fast moving targets, and later, simulations are given to illustrate the effectiveness and validness of this robust CRT algorithm.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126677225","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
Power-aware distributed target detection in wireless sensor networks with UWB-radar nodes 超宽带雷达节点无线传感器网络中功率感知分布式目标检测
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494504
D. Bielefeld, R. Mathar, O. Hirsch, R. Thomä
{"title":"Power-aware distributed target detection in wireless sensor networks with UWB-radar nodes","authors":"D. Bielefeld, R. Mathar, O. Hirsch, R. Thomä","doi":"10.1109/RADAR.2010.5494504","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494504","url":null,"abstract":"Distributed detection of targets is one of the major applications of wireless sensor networks. Many existing results on distributed detection are either derived from analytical models or are based on simulations. In this paper, the performance of a distributed target detection system is evaluated by real measurement data obtained by UWB-radar-based sensor nodes. After local processing of the radar signal, the sensor nodes transmit their local decisions about the absence or presence of the target to a fusion center. For this purpose, a power-aware algorithm for resource allocation, which is tailored for UWB communication links is discussed. The feasibility and the effectiveness of this algorithm is evaluated by a hybrid approach based on the measurement data and simulations.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124833054","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 new far field measurement method for antenna polarization characteristics based on calibrator target 基于校准器目标的天线极化特性远场测量新方法
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494662
Dai Huanyao, Liu Yong, L. Yongzhen, W. Xuesong, Chang Yuliang
{"title":"A new far field measurement method for antenna polarization characteristics based on calibrator target","authors":"Dai Huanyao, Liu Yong, L. Yongzhen, W. Xuesong, Chang Yuliang","doi":"10.1109/RADAR.2010.5494662","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494662","url":null,"abstract":"A new far-field measurement method of antenna is studied in this paper. The received signal model of antenna's beam scanning the calibrator target has been built and the measurement method is considered. The full analysis formula and practical procedure was given. The validity of research work was demonstrated by processing the observational data and simulation. This can greatly reduce the development complexity and production cost of far field test, increased the fidelity at the meanwhile.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123623138","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
Characterization of Doppler effects in the context of over-the-horizon radar 超视距雷达中多普勒效应的表征
2010 IEEE Radar Conference Pub Date : 2010-05-10 DOI: 10.1109/RADAR.2010.5494567
C. Ioana, M. Amin, Yimin D. Zhang, F. Ahmad
{"title":"Characterization of Doppler effects in the context of over-the-horizon radar","authors":"C. Ioana, M. Amin, Yimin D. Zhang, F. Ahmad","doi":"10.1109/RADAR.2010.5494567","DOIUrl":"https://doi.org/10.1109/RADAR.2010.5494567","url":null,"abstract":"This paper addresses the problem of the characterization of Doppler effect of maneuvering targets in the context of over-the-horizon radar. The received signal has a complex Doppler structure which is composed of several arrivals, each corresponding to a particular path. In essence, it consists of several close time-frequency components with non-linear signatures in the time-frequency domain. The nonlinearities are the projections of the target's motion vectors on the propagation paths. Estimating the time-frequency contents of all paths reveals the Doppler effects characterizing the target's trajectory. Analysis of such signals in the presence of strong clutter requires effective non-stationary signal processing techniques. In this paper, we propose a new technique based on local analysis of the phase information using warped high-order ambiguity function. The results depict resolvable multipath estimates which are very close to the ground truth.","PeriodicalId":125591,"journal":{"name":"2010 IEEE Radar Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123779893","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: 21
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