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2016 IEEE Radar Conference (RadarConf)最新文献

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Target detection in sea clutter using resonance based signal decomposition 基于共振信号分解的海杂波目标检测
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485249
B. Ng, L. Rosenberg, S. T. Nguyen
{"title":"Target detection in sea clutter using resonance based signal decomposition","authors":"B. Ng, L. Rosenberg, S. T. Nguyen","doi":"10.1109/RADAR.2016.7485249","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485249","url":null,"abstract":"Detection in the maritime domain requires the radar return from an object of interest (target) to be distinguishable from the background interference (sea clutter and noise). These radars traditionally use non-coherent processing methods due to the time-varying and range-varying nature of the Doppler spectra. However, the radar backscatter may contain sea-spikes which can last for seconds and resemble targets. In this paper, a method of sparse signal separation known as `basis pursuit denoising' has been applied to two different sea clutter data sets to demonstrate the potential for improved detection performance. We also explore how the parameters required for this technique can be selected depending on the target velocity.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123658356","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
Spatially modulated metamaterial array for transmit (SMMArT) 空间调制超材料发射阵列(SMMArT)
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485276
A. Salandrino, Diego J. Chachayma Farfan, Patrick M. McCormick, Eli D. Symm, S. Blunt
{"title":"Spatially modulated metamaterial array for transmit (SMMArT)","authors":"A. Salandrino, Diego J. Chachayma Farfan, Patrick M. McCormick, Eli D. Symm, S. Blunt","doi":"10.1109/RADAR.2016.7485276","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485276","url":null,"abstract":"Borrowing from slow-light optics, a metamaterial-based transmit array is conceived that employs a low-group-velocity serial feed line. This feed configuration facilitates a new manner of physical implementation for fast-time spatial modulation of a radar waveform based on the development of a serial-fed slotted Clarricoats-Waldron waveguide, thus realizing a physical MIMO radar implementation that avoids the need for phase-shifters and requires only a single waveform generator. The theory and principles of operation for SMMArT are presented, as well as the electromagnetic design principles for the low-group-velocity waveguide structure. High-power and planar array manifestations are also discussed.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"10 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114109512","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
Passive polarimetrie multistatic radar for ground moving target 地面运动目标被动极化多基地雷达
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485072
Il-Young Son, B. Yazıcı
{"title":"Passive polarimetrie multistatic radar for ground moving target","authors":"Il-Young Son, B. Yazıcı","doi":"10.1109/RADAR.2016.7485072","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485072","url":null,"abstract":"We consider a scene illuminated by a single stationary transmitter with unknown polarization and a set of spatially distributed receivers exhibiting polarization diversity. We present a model and detection framework to detect moving targets using a multistatic passive receivers with polarimetric diversity. We model the targets as a set of dipole antennas. The model captures the anisotropic nature of targets exhibited in multistatic configurations. We address the moving target detection problem in a generalized likelihood ratio test (GLRT) framework. In addition, we introduce a method for estimating the dipole moments of the target derived from the GLRT formulation. We show, through a set of simulations, the efficacy of polarization diversity in both target detection and dipole estimation.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"470 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116514968","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: 10
Joint through-wall 3-D radar imaging and motion detection using a stop-and-go SAR trajectory 关节穿墙三维雷达成像和运动检测使用走走停停的SAR轨迹
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485325
P. Sévigny
{"title":"Joint through-wall 3-D radar imaging and motion detection using a stop-and-go SAR trajectory","authors":"P. Sévigny","doi":"10.1109/RADAR.2016.7485325","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485325","url":null,"abstract":"Through-wall radar research has been very active in recent years, offering possibilities for both motion detection and stationary scene imaging. In this paper, we propose to address both objectives of through-wall radar in a single pass of a vehicle-mounted radar in front of a building of interest, using a stop-and-go synthetic aperture radar (SAR) trajectory. To do so, the vehicle is driven on a straight path approaching the building, it stops for approximately 30 seconds in front of the building, and then accelerates to reach a constant speed for the remainder of the pass. During this time, the radar continuously collects data at a constant pulse repetition frequency. In this paper, we demonstrate that the image quality is not affected by the stop- and-go trajectory provided that we use an estimate of the angle between two consecutive pulses as the weighting function in the imaging algorithms. We show that a walker and a mover, where the former cannot be detected directly in the SAR image, can be detected using simple motion detection schemes.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121511857","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
Hyperbolically-warped cepstral coefficients for improved micro-Doppler classification 改进微多普勒分类的双曲扭曲倒谱系数
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485204
B. Erol, S. Gurbuz
{"title":"Hyperbolically-warped cepstral coefficients for improved micro-Doppler classification","authors":"B. Erol, S. Gurbuz","doi":"10.1109/RADAR.2016.7485204","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485204","url":null,"abstract":"Mel-frequency cepstrum coefficients (MFCC) have been used in many recent works as features for micro-Doppler classification. Originally proposed as features for speech recognition, the filter bank applied as part of the computation of the MFCC is designed with spacing according to the mel-frequency scale - a scale based upon the auditory properties of the human ear. However, the frequency composition of micro-Doppler signatures is completely unrelated to the mel-frequency scale. In this work, an alternative set of features computed using a filter bank based on a hyperbolically-warped frequency scale is proposed. A 21.25% increase in the correct classification rate of running, walking, creeping, and crawling is obtained when the proposed hyperbolically-warped cepstral coefficients (HWCC) are used as opposed to MFCC.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124295315","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 amplifier and power supply distortion of pulse compression radar chirps 脉冲压缩雷达啁啾的功率放大器和电源畸变
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485074
M. Leifer, R. Haupt
{"title":"Power amplifier and power supply distortion of pulse compression radar chirps","authors":"M. Leifer, R. Haupt","doi":"10.1109/RADAR.2016.7485074","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485074","url":null,"abstract":"This paper examines the effects of time-domain pulse droop on linear FM chirp signals used in pulse compression radar. The radar literature is oddly quiet on how to specify power amplifier droop for a desired level of radar performance, with the result that overly stringent droop specifications (-0.5 dB maximum droop, e.g.) are sometimes imposed on modern phased array radar antennas. Since this drives array cost, mass, and power consumption, it is worthwhile asking how much droop can be tolerated. The present paper analyzes the effects of droop on compressed linear FM chirp waveforms and derives criteria that maintain the fidelity of the matched filter output. The application of a spectral window to control time sidelobes is included in the analysis. We show the perhaps surprising result that chirps are robust to as much as 3 dB of droop. In fact, loss of sensitivity due to reduced energy on the target becomes an issue before significant distortion of the compressed chirp waveform occurs. This work should point the way to sensible droop specifications resulting in more cost effective phased array antennas.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127703878","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
First experimental results for a WiFi-based passive forward scatter radar 基于wifi的无源前向散射雷达的首次实验结果
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485108
T. Martelli, F. Colone, P. Lombardo
{"title":"First experimental results for a WiFi-based passive forward scatter radar","authors":"T. Martelli, F. Colone, P. Lombardo","doi":"10.1109/RADAR.2016.7485108","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485108","url":null,"abstract":"In this paper we investigate the potentiality to exploit a passive forward scatter radar (PFSR) based on WiFi transmissions for vehicle classification. In particular, a procedure to extract the vehicle signatures from the received signal is presented. The preliminary results obtained by means of an experimental setup developed and fielded at University of Rome \"La Sapienza\" show that different targets yield quite different signature shapes that can be fruitfully exploited by a classification stage according to a reasonable strategy.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126433864","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: 20
Reduced time-on-target in pulse Doppler radar: Slow time domain compressed sensing 脉冲多普勒雷达中降低对靶时间:慢时域压缩感知
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485243
Deborah Cohen, Yonina C. Eldar
{"title":"Reduced time-on-target in pulse Doppler radar: Slow time domain compressed sensing","authors":"Deborah Cohen, Yonina C. Eldar","doi":"10.1109/RADAR.2016.7485243","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485243","url":null,"abstract":"Pulse Doppler radars measure both the targets distance to the transceiver and their radial velocity, through estimation of time delays and Doppler frequencies, respectively. This digital processing is traditionally performed on samples of the received signal at its Nyquist rate, which can be prohibitively high. Overcoming the rate bottleneck, sub-Nyquist sampling methods have been proposed that break the link between radar signal bandwidth and sampling rate. In this work, we extend this concept to the slow time domain. We choose to transmit non-uniformly spaced pulses in one direction, thus allowing to reduce the average time-on-target by exploiting the complementary set of transmitted pulses in another direction. Both software and hardware simulations demonstrate reduced time-on-target and recovery of several delay-Doppler maps within the same coherent processing interval.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131383919","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
Blind interception of phase coded signals 相位编码信号的盲截取
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485231
A. Fam, Ravi Kadlimatti
{"title":"Blind interception of phase coded signals","authors":"A. Fam, Ravi Kadlimatti","doi":"10.1109/RADAR.2016.7485231","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485231","url":null,"abstract":"This paper proposes a blind phase coded signal interception method for a potential target to recognize whether it is being looked at. The interception method is based on identifying the carrier frequency (fc) of the received signal with unknown phase coding from the ratio of the second derivative of the signal with itself. It is shown that this ratio is equal to -(2πfc)2. The second derivative is estimated by successive differences of the highly sampled received signal. It is shown that average of the ratio of the estimated second derivative to the highly sampled received signal gives an accurate estimate of the carrier frequency. To reduce the additive noise effect, different segments of the received signal are convolved with themselves and their outputs cross-correlated before computing the second derivative. Convolution of the noisy cosine/sine chips in the received signal is identical to cross correlation of the cosine chips/cross-correlation of the sine chips multiplied by - 1, added to convolution of the noise segments. This is so because cosine/sine chips are symmetrical/anti-symmetrical and the lack of such symmetry in the noise results in higher signal-to-noise ratio. This technique along with a bandpass filter bank, results in successful carrier identification based signal interception in environments with SNR ≅ 12 dB or more. Such SNR levels could be considered as reasonable in the common application of signal interception for a potential target. The received signal in such a scenario is stronger since, it is proportional to only 1, versus 1 and the effect of target cross-section on reflected signals.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132127663","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
Waveform design for coherent MIMO radar radiation management and transmit-receive beam refocusing 相干MIMO雷达辐射管理和收发波束重聚焦的波形设计
2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485239
Zhe Geng, H. Deng, B. Himed
{"title":"Waveform design for coherent MIMO radar radiation management and transmit-receive beam refocusing","authors":"Zhe Geng, H. Deng, B. Himed","doi":"10.1109/RADAR.2016.7485239","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485239","url":null,"abstract":"In this paper, we propose a novel waveform design approach for coherent multiple-input multiple-output (MIMO) radar to make radar radiation management and transmit-receive beam refocusing at the radar receiver feasible. The transmitted waveforms are coded in the space domain to form a defocused transmit beam pattern for radiation management, and further in time domain to be orthogonal so that they can be separated and extracted through matched filtering at the radar receiver for transmit-receive beam refocusing processing. The proposed waveform design and beamforming approaches are validated through simulations.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131758644","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
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