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2006 International Waveform Diversity & Design Conference最新文献

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Time-reversal, MIMO, and reciprocity: Their implications 时间反转、MIMO和互易性:它们的含义
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321502
T. Sarkar
{"title":"Time-reversal, MIMO, and reciprocity: Their implications","authors":"T. Sarkar","doi":"10.1109/WDD.2006.8321502","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321502","url":null,"abstract":"The objective of this paper is to outline the unity in diversity between the time-reversal, MIMO and reciprocity. The objective is to outline the fundamental physics behind them and illustrate under what conditions they work.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127547352","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
Improving STAP performance in target rich environments through adaptive illumination 通过自适应照明改善目标丰富环境下的STAP性能
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321461
P. Corbell, M. Temple, T. Hale, M. Rangaswamy
{"title":"Improving STAP performance in target rich environments through adaptive illumination","authors":"P. Corbell, M. Temple, T. Hale, M. Rangaswamy","doi":"10.1109/WDD.2006.8321461","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321461","url":null,"abstract":"Targets in the Training Data (TTD) represent a significant source of clutter heterogeneity which reduces the Minimum Discernable Velocity (MDV) in Ground Moving Target Indication (GMTI) radar. Most techniques for dealing with TTD rely on identifying and removing heterogeneous samples (range gates) from the Training Data (TD). In target rich environments, this process can result in a drastic reduction in training data quantity and impede performance. This paper presents an alternative to TTD using a modern planar Active Electronically Scanned Array (AESA) to adaptively shape transmit antenna patterns such that transmit nulls are placed along road locations in the radar scene. It is shown that this technique effectively reduces TTD reflections and restores TD that would otherwise be removed; both the quality and quantity of available TD increases.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127341843","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
Clutter rejecting waveforms for synthetic aperture radar traversing arbitrary flight path 任意航迹合成孔径雷达杂波抑制波形
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321439
B. Yazıcı, C. Yarman, M. Cheney
{"title":"Clutter rejecting waveforms for synthetic aperture radar traversing arbitrary flight path","authors":"B. Yazıcı, C. Yarman, M. Cheney","doi":"10.1109/WDD.2006.8321439","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321439","url":null,"abstract":"In [28], we presented a synthetic aperture radar (SAR) inversion method in which the backscatter measurements are collected from known but arbitrary flight path and non-flat topography corrupted with clutter and noise. The objective of the current work is to design transmit waveforms and receive filters jointly to perform clutter suppression by adaptive transmit. Our approach starts with the development of a physics based forward model for SAR. Next, we formulate design of clutter rejecting waveforms as a variational problem using the minimum mean square error criteria. The resulting waveforms lead to an adaptive linear least squares transmit scheme in which waveforms vary at every point on the flight path based on the clutter and target spectral density functions.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131059773","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
Optimal space-time transmit signals for multi-mode radar 多模雷达的最优时空发射信号
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1049/SBRA023E_CH11
J. Stiles, Vishal Sinha, Atulya Deekonda
{"title":"Optimal space-time transmit signals for multi-mode radar","authors":"J. Stiles, Vishal Sinha, Atulya Deekonda","doi":"10.1049/SBRA023E_CH11","DOIUrl":"https://doi.org/10.1049/SBRA023E_CH11","url":null,"abstract":"A structure is presented for constructing non-separable space-time transmit functions for multi-mode radar applications. By writing a space-time transmit signal as an expansion of space-time basis functions, transmit signal optimization can be reduced to simply finding an optimal set of complex weights. These weights form a data vector that can be determined for different optimization criteria, using linear algebraic techniques. Unfortunately, the optimality criteria where solutions are most easily found do not provide useful results for radar applications. Instead, mini-max or maxi-min criteria are often more applicable. An iterative solution for maximizing the minimum individual target-to-clutter-ratio is described, and results are presented. Moreover, the form of the resulting space-transmit signal is investigated, both at the transmitter and when incident on the illuminated targets. It is shown that the time-frequency spectrum incident on different targets can be dissimilar if true space-time transmit signals are applied. Different targets will then appear to be illuminated by different radar transmitters.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130525466","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
Details of the signal processing, simulations and results from the Norwegian Multistatic Radar DiMuRa 挪威多基地雷达DiMuRa的信号处理、模拟和结果的细节
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321447
K. E. Olsen, T. Johnsen, S. Johnsrud
{"title":"Details of the signal processing, simulations and results from the Norwegian Multistatic Radar DiMuRa","authors":"K. E. Olsen, T. Johnsen, S. Johnsrud","doi":"10.1109/WDD.2006.8321447","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321447","url":null,"abstract":"The Norwegian Defence Research Establishment has developed an experimental Continuous Wave Low Probability of Intercept Multistatic Radar, DiMuRa, consisting of two transmitters and one receiver. This radar has been used to detect airplanes (targets of opportunity), and selected results have been presented, [1]-[3]. This paper will focus on the range gated continuous wave Doppler signal processing that has been used. Results from simulations and data from a radar trial are presented.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122235487","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: 8
Application of a wavelet-based frequency estimation approach for mobile satellite communication 基于小波的频率估计方法在移动卫星通信中的应用
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321428
Liu Gang, Li Bing, R. M. Jayasuriya, Ng Chee Wei
{"title":"Application of a wavelet-based frequency estimation approach for mobile satellite communication","authors":"Liu Gang, Li Bing, R. M. Jayasuriya, Ng Chee Wei","doi":"10.1109/WDD.2006.8321428","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321428","url":null,"abstract":"A wavelet-based frequency estimator is proposed and applied in the DOA estimation of mobile satellite communication. This method is used to estimate the frequency of the satellite beacon signal so that a very narrow low pass filter can be implemented to improve the signal noise ratio, and a more accurate DOA can be obtained after processing this higher SNR signal.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122686942","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
Joint RADAR waveform design for networked ISR systems 网络化ISR系统联合雷达波形设计
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321466
N. Subotic, Benjamin Bachelor, K. Cooper, P. Zulch
{"title":"Joint RADAR waveform design for networked ISR systems","authors":"N. Subotic, Benjamin Bachelor, K. Cooper, P. Zulch","doi":"10.1109/WDD.2006.8321466","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321466","url":null,"abstract":"In this paper we describe methodologies for joint design and exploitation of heterogeneous RF Intelligence Surveillance Reconnaissance (ISR) sensor networks. In this work, we provide an algorithm that simultaneously optimizes a waveform set that overtly incorporates the aspect variant nature of the target and clutter signatures along with the mutual interference of the waveforms. The basis of the optimization is a maximization of the composite signal-to-interference-plus-noise ratio. The work reported here generalizes the single optimal waveform design approach of Pillai et. al. to the case of J simultaneous waveforms. Knowledge of the target spectral support for each aspect is assumed and the waveform set is jointly optimized. Simulation results are given that show the waveform characteristics and the increase in signal-to-interference-plus-noise ratio over sets of chirp waveforms and independently optimized waveforms.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134351676","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
Photonic direct digital synthesis (PDDS) of ultra wide band waveforms from DC to 20 GHz instantaneous bandwidth 从直流到20 GHz瞬时带宽的超宽带波形的光子直接数字合成(PDDS)
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/wdd.2006.8321482
M. Staniforth
{"title":"Photonic direct digital synthesis (PDDS) of ultra wide band waveforms from DC to 20 GHz instantaneous bandwidth","authors":"M. Staniforth","doi":"10.1109/wdd.2006.8321482","DOIUrl":"https://doi.org/10.1109/wdd.2006.8321482","url":null,"abstract":"PDDS is a method using a single photonic chip (OEIC) to generate, direct from digital data, microwave signals across a UWB. The systems demonstrated provide from the time domain control of waveforms at 20 picosecond resolution and over a time period only limited by the generation of data. In this paper we present measured results from laboratory demonstration devices in COTS optical systems.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114160181","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
Waveform diversity: Hardware demonstration 波形分集:硬件演示
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321511
R. Schneible, R. Brown, W. Baldygo
{"title":"Waveform diversity: Hardware demonstration","authors":"R. Schneible, R. Brown, W. Baldygo","doi":"10.1109/WDD.2006.8321511","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321511","url":null,"abstract":"Waveform diversity has been investigated by various organizations for a number of specific multiple function systems for about ten years. Applications that are being investigated include: • Multi-Mission Systems, including joint radar/embedded communications and simultaneous multi-mission radar • Advanced Target Classification, using multi-static imaging or multi-band/multi-static operation • Multi-Static Surveillance, including using distributed apertures to provide improved detection, tracking and interference rejection • Radars with unique modulation or unique spectrum usage. Each of these applications has constraints that prevent them from being accomplished with conventional waveforms. However, the greater design space of waveform diversity may provide the required capability. In previous work, multi-mission waveform methodology was extended to provide interleaved waveforms sequentially radiated from an aperture, and simultaneous orthogonal waveforms radiated from sub-apertures of the radar system. But effective operation in other modes (track, id, handoff) will require greater flexibility than is available with only the interleaved and sub-aperture approaches. A further advance in multi-mission waveform is required. Orthogonal waveforms must be radiated from the whole aperture simultaneously in addition to the mode using sub-apertures. In fact, a full capability multi-mission radar would require all three modes and the goal of our ongoing effort is to develop and demonstrate such a capability. When this goal is met, airborne radar systems concepts can be developed to meet a full spectrum of multi-mission needs. Our effort to develop simultaneous waveforms for air and ground surveillance (SWAGS) focuses on the critical software and hardware technologies required to make this full capability multi-mission radar feasible.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114708437","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
Adaptive transmit and receive waveforms for low frequency radar: Abstract for the 2006 international waveform diversity & design conference 低频雷达的自适应发射和接收波形:2006国际波形分集与设计会议摘要
2006 International Waveform Diversity & Design Conference Pub Date : 1900-01-01 DOI: 10.1109/WDD.2006.8321420
M. Lindenfeld
{"title":"Adaptive transmit and receive waveforms for low frequency radar: Abstract for the 2006 international waveform diversity & design conference","authors":"M. Lindenfeld","doi":"10.1109/WDD.2006.8321420","DOIUrl":"https://doi.org/10.1109/WDD.2006.8321420","url":null,"abstract":"Proposed and existing SAR radar systems operate in the VHF/UHF band for foliage penetration [1]. These systems have large relative bandwidths (UWB) for fine range resolution. There is significant RFI in these bands. Digital TV has the most adverse effect, due to its large bandwidth [2]. Amplitude, frequency and phase estimates for tone removal would soon be inaccurate due to the short correlation time. Conversely, uncontrolled transmission would interfere with TV reception and important communication and navigational aid systems.","PeriodicalId":339522,"journal":{"name":"2006 International Waveform Diversity & Design Conference","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130125466","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
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