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Aerospace and Electronic Systems Magazine, IEEE

Issue 10 • Date Oct. 2012

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  • Front cover

    Page(s): c1
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  • This month's covers…

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  • Table of content

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  • Call for paper

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  • From the editor-in-chief

    Page(s): 3
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  • In this issue - technically

    Page(s): 4
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  • Guest editorial special issue on passive radar (Part I)

    Page(s): 5
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  • A multi-frequency hybrid passive radar concept for medium range air surveillance

    Page(s): 6 - 15
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3601 KB) |  | HTML iconHTML  

    A MFH-PR concept has been presented. The rationale for pursuing such a hybrid unit has been explained in terms of enhancing detection range and coverage over conventional PRs. The important distinctions between MFNs and SFNs have been analysed. Section VI has described the advantages of signal reconstruction and has shown that, in certain situations, adequate interference suppression can be achieved without use of additional adaptive filters. An important consideration of MFH-PR is the potential range coverage extension. This has been demonstrated in Section VII using an advanced radar planning tool. Frequency and spatial diversity have been discussed in the context of improving tracking performance. The military utility of a MFH-PBR has also been discussed in Section XIII. View full abstract»

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  • Performance of a multiband passive bistatic radar processing scheme — Part I

    Page(s): 16 - 25
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4297 KB) |  | HTML iconHTML  

    The performance of a mathematical processing scheme has been presented. The algorithm is inspired by the HRR approaches used in HRR radar systems on how to exploit multiple nonadjacent broadcast channels or bands in the PBR range correlation to achieve higher range resolution while maintaining Doppler resolution from relatively long integration times. The broadcast channels or bands are assumed to be from a single transmitter. The following problems have been addressed and solved [26]-[28], [31]: By using broadcast signals at different carrier frequencies, the target Doppler shift is different, and the proposed method takes this into account. By using time-varying waveforms (signals of opportunity, i.e., FM, DAB, DVB-T, or pseudonoise) in the range correlation, a time-varying result is achieved. If this becomes an issue, it should be countered by increasing the range correlation time. This might be achieved either by increasing the total CPI or by keeping the CPI constant and reducing the Doppler resolution. Combining multiple bands results in cochannel correlation, as well as cross-channel correlation. While only the former is sought, it is shown that the cross terms may be neglected due to their correlation properties with respect to each other. This is also helped by their destructive frequency component from the demodulation. Even though good individual correlation performances are achieved for single channels or bands, summing the correlation contributions for the different channels or bands might cause an out-of-phase summation that modulates the range correlation peak in a way that may cause erroneous range estimates to be made. The algorithm estimates a phase correction term that, once applied, makes all contributions in phase; thus, erroneous range estimates, as well as destructive summing of target responses, are avoided. View full abstract»

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  • Multireceiver passive radar tracking

    Page(s): 26 - 36
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (7017 KB) |  | HTML iconHTML  

    In this article, we have proved that using several passive radar receivers is of high interest to improve tracking capacities, by increasing the number of bistatic geometries available and diversifying the target aspect angles (multistatism). The experimental results showed that the multireceiver configuration enables us to initialize a track when the number of simultaneous detections is too low to do it in a single-receiver configuration (DVB-T) and/or it improves tracking quality, like track continuity, accuracy, and reduction of the initialization time (FM). View full abstract»

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  • High range resolution multichannel DVB-T passive radar

    Page(s): 37 - 42
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3056 KB) |  | HTML iconHTML  

    The exploitation of multiple DVB-T channels for a passive radar system has been considered to enhance the radar range resolution. A preliminary study has focused on the AF analysis to verify the suitability of a multichannel DVB-T signal for radar applications. The theoretical study has been supported by preliminary measurements relative to three adjacent DVB-T channels. Experimental results in an aerial scenario through the use of SDR hardware have been carried out and showed a clear improvement in range resolution when using multichannel rather than single channel DVB-T signals. It may be proven in the near future that target classification of noncooperative target radar imaging will be enabled by a high resolution DVB-T passive radar that is obtained by exploiting multichannel DVB-T signals. View full abstract»

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  • Velocity measurement and traffic monitoring using a GSM passive radar demonstrator

    Page(s): 43 - 51
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    The paper presented an idea for a new potential civilian application for passive radar utilizing a GSM transmitter as the illuminator of opportunity. The concept presented has been verified via the processing of the data recorded during a measurement campaign carried out in a real operational scenario. The results presented in the paper show that a GSM-based PCL system can be used successfully in the future as a new system dedicated to speed control and traffic monitoring, both in urban areas and on small roads and highways. The results presented in the paper show that the system is able to simultaneously distinguish different-sized objects, characterized by different RCSs, as in the example of the truck and cyclist. This result shows the high potential of the proposed system. View full abstract»

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  • Use of a graphics processing unit for passive radar signal and data processing

    Page(s): 52 - 59
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (5404 KB) |  | HTML iconHTML  

    The article discussed two main topics: 1. It illustrated the need for increasing the performance of the passive sensor signal processor. The GPU appears to be a solution especially for the computational request of a dual-band system simultaneously receiving and processing FM and DVB-T data. 2. It presented of the AULOS passive system already in the field. View full abstract»

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  • Membership application

    Page(s): 60
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  • Student membership application

    Page(s): 61
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  • Directory of IEEE-AESS personnel

    Page(s): 62
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  • IEEE aerospace & electronic systems society organization 2012

    Page(s): 63
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  • Digital images: Author guidelines

    Page(s): 64
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  • Meetings Calendar

    Page(s): c3
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  • Back cover

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Aims & Scope

The IEEE Aerospace and Electronic Systems Magazine publishes articles and tutorials concerned with the various aspects of systems for space, air, ocean, or ground environments.

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Meet Our Editors

Editor-in-Chief
Teresa Pace, PhD EE
Chief Engineer SenTech
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