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Radar Conference, 2009 IET International

Date 20-22 April 2009

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Displaying Results 1 - 25 of 403
  • Clutter modeling and simulation for missile-borne high resolution radar

    Publication Year: 2009, Page(s):1 - 5
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1122 KB)

    This paper researches a clutter modeling and simulation method based on the generalized correlated K-distribution for missile-borne high resolution radar. Firstly, it analyze clutter echo characteristics of the missile-borne high resolution radar based on the LFM signal, point out that under the condition of missile high-speed movement, the generalized correlated K-distribution can better reflect ... View full abstract»

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  • Range and velocity ambiguity resolution based on screening method

    Publication Year: 2009, Page(s):1 - 3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (622 KB)

    In consideration of the measurement error and the blind region, a novel algorithm is proposed for PD radar resolving range and velocity ambiguity. The algorithm is based on minimum variance criteria, it can screen out the true values of range and velocity from all possible values under the reference PRE compared with the traditional Chinese remainder theorem, the computational complexity of this n... View full abstract»

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  • Life detection algorithm for stepped-frequency CW Radar

    Publication Year: 2009, Page(s):1 - 4
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (939 KB)

    The micro-vibration activities of the biologic, including heartbeat and respiration, can be detected to identify the life targets, which is widely used in rescue, remote medicine, etc. A new life detection algorithm will be proposed for stepped- frequency continuous wave (SFCW) radar, which mainly based on multi-periods and MTD filter technology to extract the micro-doppler frequency of biologic t... View full abstract»

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  • Distributed space-based GMTI with synthetic aperture radar

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (887 KB)

    In this paper, a new target detection and location approach which is performed in three stages is proposed, i.e. array manifold calibration, clutter rejection and target radial velocity estimation. Once the array manifold has been calibrated based on clutter echoes in range-Doppler domain, the objective of clutter cancellation can be achieved by the linear combination of the joint pixels data with... View full abstract»

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  • A HPRF stepped frequency phased array radar system design

    Publication Year: 2009, Page(s):1 - 3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (808 KB)

    The design for a high PRE, stepped frequency, phased array radar is presented. Phased array radar using stepped frequency waveform brings several benefits. This paper gives design principle for this radar system and key implementation methods. View full abstract»

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  • Conservation-law based discrimination method of exoatmosphere range false targets

    Publication Year: 2009, Page(s):1 - 6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1382 KB)

    Range false target deception jamming is a common electronic countermeasure (ECM) technique used for ballistic missile penetration. The specially designed decoys can even form stable tracks, making discrimination quite difficult. This paper proposes a novel method, called conservation-law based discrimination algorithm(CLDA), can discriminate these decoys at the radar data processing level. Firstly... View full abstract»

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  • Evaluation of invariant feature algorithms on FL-BSAR imagery registration

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (911 KB)

    Imagery registration is an important application of FL-BSAR. Meanwhile, many start-of-art invariant feature image registration methods are proposed in computer vision world. However, few of them have been evaluated in SAR application. Our paper focuses on the evaluation of contemporise registration algorithms on FL-BSAR. According to our experiment, the best interest point detector is the Harris-L... View full abstract»

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  • An efficient digital down converter architecture for wide band radar receiver

    Publication Year: 2009, Page(s):1 - 4
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (744 KB)

    This paper, the architecture and the implementation of an efficient digital down converter (DDC) processor for wide band radar receiver are presented. This architecture of the processor is based on the sampling technique in which the sampling frequency is 4 times as high as the intermediate frequency and the use of half band filter architecture. It avoids 3/4 the use of multiplications compared wi... View full abstract»

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  • A sidelobe suppression method based on adaptive pulse compression (apc) for random stepped-frequency radar

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (889 KB)

    Random stepped-frequency radar chooses the transmitted frequencies randomly. For this reason, this kind of radar can suppress the range ambiguity, improve covert detection; and the correlation output is accompanied by random noise components, which increases the side-lobe level. This paper utilizes an adaptive pulse compression (APC) algorithm to suppress side-lobes, which is compared with weight ... View full abstract»

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  • Motion measurement errors in bistatic spotlight SAR

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (998 KB)

    This paper introduces a general approach to analyse the effect of the motion measurement errors (MMEs) on the bistatic spotlight synthetic aperture radar (SAR) images. The effect of MMEs is comprised of space-variant shift error and defocus. The space-variant shift error can be obtained by comparing the positions of the corresponding points with the same central range and Doppler centroid in the m... View full abstract»

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  • A quick-look imaging algorithm for space-borne strip SAR

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1038 KB)

    A quick-look algorithm for space-borne strip SAR is presented. The algorithm consists of three main steps which are block formation, block processing and block merging in turn. The strategy of every step which is very important for the quick-look imaging is presented in details. Firstly, there are three rules needed to be considered in order to implement the real time imaging during block formatio... View full abstract»

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  • Effects of missile rotation on missile-borne SAR

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (837 KB)

    The effect of missile rotation error on SAR imaging is investigated in this paper. It shows that the missile rotation error impacts both amplitude and phase of received signal, and then causes the paired echoes in SAR images. The simulation results fully demonstrate the correctness of analysis. Our work could provide the reference for the system design, such as mounting antenna on the axis of the ... View full abstract»

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  • A high resolution multiple-receiver SS-BSAR system

    Publication Year: 2009, Page(s):1 - 5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1393 KB)

    A multiple-receiver space-surface synthetic aperture radar (MRSS-BSAR) system is brought forward to improve azimuth resolution in SS-BSAR. The system is composed of one moving spaceborne illuminator and multiple static receivers. The receivers are arranged along the transmitter's moving direction with equal intervals. The profile in azimuth resolution(AR) direction of the point spread function(PSF... View full abstract»

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  • The implement of millimeter wave active homing guidance based on embedded system

    Publication Year: 2009, Page(s):1 - 3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (622 KB)

    In this paper, we discuss the millimetre wave active homing guidance signal processor's workflow. Then we present an embedded system design method based on FPGA and solve the problem of multi-processors interlink and communication. The SFP and LFM signal process are also discussed. The module we present can be developed to any guidance signal processor. View full abstract»

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  • Nonlinear filters for tracking maneuverable ballistic missile targets on reentry

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (820 KB)

    With the development of the ballistic missile defense penetration technology, the reentry ballistic missile can be maneuverable to change its trajectory in order to achieve defense penetration. Besides the air resistance, the maneuvering force generated by missile causes the abrupt change of acceleration during the reentry duration, so in order to obtain better tracking performance, it's necessary... View full abstract»

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  • Research on velocity measurement of high-speed multi-target

    Publication Year: 2009, Page(s):1 - 5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (971 KB)

    The keystone formatting for high speed targets can only be performed correctly by knowing right Doppler ambiguity number. The "sub-band double carrier frequency conjugated processing" method can achieve a quite long equivalent wavelength comparing with transmitted signals. With this characteristic, a reasonable velocity measurement procedure is proposed. And the impact of cross term of targets wit... View full abstract»

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  • A W-KNN classifier to improve radar outlier rejection performance

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (904 KB)

    Radar automatic target recognition (ATR) mainly corresponds to uncooperative targets, and the training database is usually incomplete. So in the test step, we should reject the targets with new class labels as outliers firstly, and then recognize the remaining targets (inners) in detail. Combining with engineering application, we proposed a reasonable method to artificially generate outliers and d... View full abstract»

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  • ISAR imaging of maneuvering targets based on the cubic phase function

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (556 KB)

    A new algorithm for ISAR imaging of maneuvering targets is presented in this paper. The algorithm is based on the assumption that the echo signal of each scatterer point is a linear frequency modulated (LFM) signal, and the cubic phase (CP) function is applied to detect and estimate the parameters of the LFM signal. The quality of the ISAR images is improved greatly. The results of real data demon... View full abstract»

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  • Novel design of dual-polarization broad-band printed L-shaped probe fed microstrip patch antenna for SAR applications

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (675 KB)

    A novel design of printed L-shaped probe fed microstrip patch antenna is presented. This antenna can be designed for broad-band dual-polarization SAR applications. Because of using crossed printed L-shaped probe and air substrate, this antenna has advantages of simple structure, easy fabrication and low cost. The details experimental results for the proposed design are presented and discussed. View full abstract»

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  • Highly compacted X-band T/R Module using LTCC multilayer ceramic

    Publication Year: 2009, Page(s):1 - 3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (228 KB)

    Transmit/Receive (T/R) Modules are the key components for active phased array radar applications. A complete T/R Module for airborne or spaceborne active phased array radar operating in X-band was developed and tested. Besides highly sophisticated Gallium Arsenide monolithic microwave integrated circuits (GaAs MMICs), the key components for T/R Modules, Low Temperature Co-fired Ceramic (LTCC) subs... View full abstract»

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  • Optimal antenna pattern synthesis of spaceborne SAR based on AGASA

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (957 KB)

    A method of optimal antenna pattern synthesis of spaceborne synthetic aperture radar (SAR) based on adaptive genetic algorithm and simulated annealing (AGASA) is presented. The antenna radiation pattern plays an important role in the performance of the spaceborne SAR. High sidelobe level in the antenna pattern leads to high ambiguity-to-signal ratio (ASR), which degrades the quality of the SAR ima... View full abstract»

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  • A new algorithm for estimating the parameters of a polynomial phase signal

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (757 KB)

    This paper presents a new algorithm for estimating the parameters of a polynomial phase signal (PPS). The proposed algorithm is based on the modified version of the Wigner-Ville distribution (WVD). For a quadratic or cubic frequency modulated (FM) signal, it requires two-dimensional (2-D) maximizations. The optimal maximum likelihood algorithm, by contrast, requires a three-dimensional (3-D) or fo... View full abstract»

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  • Image formation algorithm for missile borne MMW SAR with phase coded waveform

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1479 KB)

    The feasibility of the application with phase coded waveform to missile borne millimetre wave (MMW) synthetic aperture radar (SAR) system was investigated. Based on theory analysis, the geometry model was simplified, the expression of the equivalent range and the Range-Doppler image formation algorithm were deduced simultaneously. The phase coded waveform is pulse compression signal, and it can de... View full abstract»

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  • Parallel realization of high resolution radar on multi-DSP system

    Publication Year: 2009, Page(s):1 - 4
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (750 KB)

    In this paper, a pulsed Doppler (PD) radar signal processing algorithm designed to track targets with high velocity is implemented in hardware based on 8 ADSP-TS201 TigerSHARC processors. And both the radar signal processing algorithm and hardware architecture are proposed. To map the algorithm effectively, pipeline optimization on system and instruction levels are adopted, and various factors are... View full abstract»

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  • SAR counter deception jamming based on radiometric calibration

    Publication Year: 2009, Page(s):1 - 4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (608 KB)

    This paper presents a method of SAR counter deception jamming method based on radiometric calibration. At first, the concept and principle of SAR deception jamming is introduced. Secondly, the principle and method of radiometric calibration is presented. Finally, the method of counter deception jamming with radiometric calibration is researched. The method which uses weak reflector to cover strong... View full abstract»

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