{"title":"MTI radar stability measurement error","authors":"S. Leonov","doi":"10.1109/ICR.2001.984665","DOIUrl":"https://doi.org/10.1109/ICR.2001.984665","url":null,"abstract":"The stability of MTI radar measured as the ratio of power of test signal residue in the target filter to power of the test signal in the clutter filter does not necessarily correspond to the actual system stability over the range of test signal-to-noise ratios. The stability measurement algorithm should be based on the signal-to-noise ratio for which both figures match each other (that in the general case depends on the number of pulses and set of coefficients used to create a canceler or Doppler filter bank) or a correction coefficient should be introduced to account for possible discrepancy between measured and actual stability figures.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129695421","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}
Ding Pengfei, Tang Chenghu, Wang Desheng, Wang Huaili
{"title":"A novel all-purpose programmable radar system","authors":"Ding Pengfei, Tang Chenghu, Wang Desheng, Wang Huaili","doi":"10.1109/ICR.2001.984791","DOIUrl":"https://doi.org/10.1109/ICR.2001.984791","url":null,"abstract":"A solution is proposed to achieve a novel all purpose programmable radar system based on DSP, PCI/Compact PCI bus and Windows system, and a new raster scan conversion algorithm is proposed. The system offers a full software console, which can be applied to achieve many kinds of radar systems. This paper describes the architecture of the new system, especially the digital signal processing (DSP) subsystem, and dual-video display subsystem. The hardware implementation of digital signal processing subsystem and dual-video display subsystem is introduced in detail. On the basis of the hardware, a new raster scan conversion algorithm, the software raster scan conversion algorithm, is proposed.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128457596","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":"A robust autofocus algorithm for the 3-D target feature extraction in curvilinear SAR","authors":"Zhigang Su, R. Wu, Jiaxue Liu, Jie Liu","doi":"10.1109/ICR.2001.984800","DOIUrl":"https://doi.org/10.1109/ICR.2001.984800","url":null,"abstract":"In this paper, a new autofocus approach is proposed to compensate for the aperture and phase errors in curvilinear synthetic aperture radar (referred to as CLSAR) and to extract the three-dimensional (3-D) target features. Numerical examples are provided to illustrate the performance of the proposed algorithm.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129376013","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":"New anti-jamming waveform designing and processing for HF radar","authors":"Wei Yinsheng, L. Yongtan","doi":"10.1109/ICR.2001.984673","DOIUrl":"https://doi.org/10.1109/ICR.2001.984673","url":null,"abstract":"In this paper several typical HF radar waveforms are synthetically analyzed and compared. To improve the low system resolution and weak anti-jamming ability that the conventional HF radar meets with, a new waveform with interrupted spectra is presented. By cutting off the interference band based on the results of the spectrum surveying system before transmitting, the HF radar could make use of some fractional silent spectra. Processing such a waveform using the method of FFT would result in a very high sidelobe and thus may greatly degrade the HF radar's performance. We introduce a new signal processing method based on the least square technique to lower the sidelobe. It is easy for processing and application. Simulation results show that this method could successfully suppress the sidelobe with high resolution in the congested electromagnetic environments.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"2011 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127363037","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":"The application of TMS320C31 in the channel of SAR image data post-processing","authors":"Liao Hancheng, Mao Shiyi","doi":"10.1109/ICR.2001.984790","DOIUrl":"https://doi.org/10.1109/ICR.2001.984790","url":null,"abstract":"This paper proposes an approach for the channel of post-processing on SAR image data. By using an interrupt structure, we make the system more efficient. By using modular design, we can easily add more functions to the system or delete from it. This system is so flexible that we can change the functions very easily.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130616617","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":"Robust STAP approach in nonhomogeneous clutter environments","authors":"W. Yongliang, C. Jianwen","doi":"10.1109/ICR.2001.984824","DOIUrl":"https://doi.org/10.1109/ICR.2001.984824","url":null,"abstract":"The new generation airborne phased array radars widely adopt flexible multiple-beam so that they have multiple functions. In this paper, a robust STAP approach with space-time multiple-beam (STMB) architecture is proposed, which has a low degree of freedom and limits the required secondary data for covariance matrix estimation. A new sample selection scheme based on the correlation dimension has been proposed, which is very suitable for the nonhomogeneous clutter environments. The experimental simulation results indicate that incorporating nonhomogeneity detection with the space-time adaptive processor dramatically improves the detection performance for airborne radar.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132900849","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":"Aircraft HRRP classification based on RBFNN","authors":"Li Ying, R. Yong, S. Xiuming, Yang Hua","doi":"10.1109/ICR.2001.984744","DOIUrl":"https://doi.org/10.1109/ICR.2001.984744","url":null,"abstract":"We present a classification scheme based on a new kind of RBFNN (radial basis function neural network) whose structure is similar to that of AWNN (adaptive wavelet neural network). To be more suitable for HRRP (high resolution range profile) classification, this kind of RBFNN substitutes wavelet basis functions in AWNN with Gaussian basis functions. In addition, we also devise an RBFNN initialization method of clear physical significance, and propose a decision rule based on average output vectors of RBFNNs. The new scheme is applied to HRRP classification of six aircraft at different SNR levels, and the results are compared with that obtained by MCCM (maximum correlation coefficient method). It is indicated that the RBFNN-based classification method has the potential in complex target classification and is promising to develop more practical HRRP classifiers.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132183990","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":"Design and implementation of an ultra-wide band pulse compression signal generation system","authors":"Si Qiang, Yanzhong Li, Jingcheng Xiang","doi":"10.1109/ICR.2001.984768","DOIUrl":"https://doi.org/10.1109/ICR.2001.984768","url":null,"abstract":"The generation of ultra-wide-band pulse compression signals is a very important technology for microwave imaging, buried targets detection, and target identification. Direct digital waveform synthesis (DDWS) enables the waveform agility to be realized easily, and the signal bandwidth can be enlarged by additional orthogonal modulator and double frequency chain circuits. An ultra-wide-band pulse compression signal generation system is introduced, which generates LFM/NLFM signals with a 400 MHz bandwidth at 1200 MHz radio frequency. The test results show that spurious components and harmonics below -55 dB and -50 dB respectively.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125466018","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":"Multi-range resolution radar using sideband spectrum energy","authors":"M. Shinriki, R. Sato, H. Takase","doi":"10.1109/ICR.2001.984662","DOIUrl":"https://doi.org/10.1109/ICR.2001.984662","url":null,"abstract":"A multi-range resolution radar using sideband spectrum energy is investigated. The basic system for the multi-range resolution radar consists of a sharpening processor and least-error energy shaping filters. First, the sharpening processor makes long flat pulses sharper. Next, the least-error shaping filters compress the outputs to the desired pulse width. The output pulse width then can become narrower than the reciprocal of input bandwidth because the least-error shaping filters make the equivalent bandwidth expand by enhancing sideband spectrum energy and suppressing the main spectrum. The transmitted signals with simple phase-modulation are studied to obtain the multi-range resolution which is to be compressed to the same pulse width and another pulse width to the reciprocal of the input bandwidth. Some simulations obtain the peak-to-sidelobe level ratios after pulse compression and the improvement factors of the output signal-to-noise ratio. Experimental results are demonstrated.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"abs/2209.00076 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125522385","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":"Optimal sampling of linear FM and conversion to digitized waveform having predictable sidelobe patterns","authors":"Woo-Kyung Lee, Kang-Min Park","doi":"10.1109/ICR.2001.984762","DOIUrl":"https://doi.org/10.1109/ICR.2001.984762","url":null,"abstract":"Several advantages are achieved when discrete phased codes are used instead of continuous waveforms. The discrete structure of the phase code signal enables one to increase the freedom of waveform design when pulse compression scheme is considered. This may lead to an arbitrary design of the resultant sidelobe patterns and possibly wide dynamic range responses can be achieved for various applications. This paper shows how a particular sampling rate for linear FM signals may lead to a significant reduction of the peak sidelobe level (PSL) as well as the integrated sidelobe level (ISL) in pulse compression operation.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125551999","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}