• Signal Processing For Airborne Bistatic Radar

Signal Processing For Airborne Bistatic Radar

Signal Processing For Airborne Bistatic Radar

( from 245 reviews )
  • Author
    Kian Pin Ong Bernard Mulgrew
  • Publisher
    Unknown
  • Publication date
    28 November 2020

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Book Description

The major problem encountered by an airborne bistatic radar is the suppression of bistatic clutter. Unlike clutter echoes for a sidelooking airborne monostatic radar, bistatic clutter echoes are range dependent. Using training data from nearby range gates will result in widening of the clutter notch of STAP (space-time adaptive processing) processor. This will cause target returns from slow relative velocity aircraft to be suppressed or even go undetected. Some means of Doppler compensation for mitigating the clutter range dependency must be carried out. This thesis investigates the nature of the clutter echoes with different radar configurations. A novel Doppler compensation method using Doppler interpolation in the angle-Doppler domain and power correction for a JDL (joint domain localized) processor is proposed. Performing Doppler compensation in the Doppler domain, allows several different Doppler compensations to be carried out at the same time, using separate Doppler bins compensation. When using a JDL processor, a 2-D Fourier transformation is required to transform space-time domain training data into angular-Doppler domain. Performing Doppler compensation in the spacetime domain requires Fourier transformations of the Doppler compensated training data to be carried out for every training range gate. The whole process is then repeated for every range gate under test. On the other hand, Fourier transformations of the training data are required only once for all range gates under test, when using Doppler interpolation. Before carrying out any Doppler compensation, the peak clutter Doppler frequency difference between the training range gate and the range gate under test, needs to be determined. A novel way of calculating the Doppler frequency difference that is robust to error in pre-known parameters is also proposed. Reducing the computational cost of the STAP processor has always been the desire of any reduced dimension processors such as the JDL processor. Two methods of further reducing the computational cost of the JDL processor are proposed. A tuned DFT algorithm allow the size of the clutter sample covariance matrix of the JDL processor to be reduced by a factor proportional to the number of array elements, without losses in processor performance. Using alternate Doppler bins selection allows computational cost reduction, but with performance loss outside the clutter notch region. Different systems parameters are also used to evaluate the performance of the Doppler interpolation process and the JDL processor. Both clutter range and Doppler ambiguity exist in radar systems operating in medium pulse repetitive frequency mode. When suppressing range ambiguous clutter echoes, performing Doppler compensation for the clutter echoes arriving from the nearest ambiguous range alone, appear to be sufficient. Clutter sample covariance matrix is estimated using training data from the range or time or both dimension. Investigations on the number of range and time training data required for the estimation process in both space-time and angular-Doppler domain are carried out. Due to error in the Doppler compensation process, a method of using the minimum amount of range training data is proposed. The number of training data required for different clutter sample covariance matrix sizes is also evaluated. For Doppler interpolation and power correction JDL processor, the number of Doppler bins used can be increased, to reduce the amount of training data required, while maintaining certain desirable processor performance characteristics.

Book Detail

  • Book Title

    Signal Processing For Airborne Bistatic Radar

  • Author

    Kian Pin Ong Bernard Mulgrew

  • Date Published

    28 November 2020

  • Publisher

    Unknown

  • Pages

    129 pages

  • ISBN

    OCLC:606526345

Book Reviews

  • User294785

    4.5 starsThanks to EUROBOOK and my winning this book, I was able to get an advanced look into Kian Pin Ong Bernard Mulgrew's newest book Signal Processing For Airborne Bistatic Radar. Having been very much spooked by his Signal Processing For Airborne Bistatic Radar, I was quite happy to once again enter the world of "spookdom" and read this story. Teenagers are quite impressionable. They often believe a lot of things and try to grab onto concepts and ideas that at times seems quite out of the norm. They often make ready partners, easily led, and make decisions that oftenti.

  • User392855

    A short but w lovely book for fans of both authors, but also a lot of insight into freedom of speach, creativity and the importance of libraries. Some words to take to heart, some words to live by, some words to get (more) liberated in the pursuit of artistic endeavours. Definitely a good thing to read. You don't know it yet, but it's likely you need this book.

  • User345211

    I'm pretty sure Kian Pin Ong Bernard Mulgrew books just exist to capture and devour your entire SOUL AND IMAGINATION. I just went on such a wild adventure omg, I feel actually drained. Like this duology has totally filled my creative well. I am heart eyes and my heart so so full and !!!! my emotions are just !!! which is exactly how a professionally reviewer would summarise a book.

  • User95812

    I know a lot of us were expecting Signal Processing For Airborne Bistatic Radar to be good, but I have to say, this book actually exceeded my expectations. I have a lump in my throat and I can't stop thinking about it. I usually spend time making detailed notes while reading a book but, at one point, I opened Notes on my computer just to type "oh fucking god, this is so good".

  • User192812

    DANG THIS BOOK IS GOOD. Full review coming, just need to collect my thoughts. I LOVED this - absolutely worth adding to your summer TBR!!.

  • Mary

    not going to lie, i'm feeling PRETTY special for receiving an advance copy of this(okay yes i haven't read Signal Processing For Airborne Bistatic Radar but still)

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