Download PDF by Gaspare Galati: Advanced Radar Techniques and Systems (IEE Radar, Sonar,

By Gaspare Galati

ISBN-10: 086341172X

ISBN-13: 9780863411724

This significant reference quantity comprises 13 huge subject matters, contributed via 9 major researchers (from 6 nations all over the world (including contributions from Europe, Japan and the USA). components of assurance contain: method structure, layout, muddle and suppression, surveillance and artificial aperture radars, detection, rejection of jamming, aim id, phased and matched arrays, and radar sign processing. Contributions are entire mathematically and lots of contain specific appendices.Also available:Optimised Radar Processors - ISBN 9780863411182Principles of Space-Time Adaptive Processing, third variation - ISBN 9780863415661The establishment of Engineering and expertise is without doubt one of the world's top specialist societies for the engineering and expertise neighborhood. The IET publishes greater than a hundred new titles each year; a wealthy mixture of books, journals and magazines with a again catalogue of greater than 350 books in 18 diverse topic components together with: -Power & strength -Renewable strength -Radar, Sonar & Navigation -Electromagnetics -Electrical dimension -History of know-how -Technology administration

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Extra resources for Advanced Radar Techniques and Systems (IEE Radar, Sonar, Navigation and Avionics, No 4)

Example text

2 Example of ML estimation Let us consider an observation consisting of a given number A of HD samples Zi, i— 1, 2, . . , N of a Gaussian variable z, with a mean value JU and a non-zero variance a2. 124) This means that one must calculate before the limit as N—> of the PDF of@ML> and only after is it possible to calculate the mean and the variance: the contrary should not be correct. 126) Let L indicate the logarithm ofp(z\O) (eqn. 129). 132) while the variance estimator 62ML is biased, as is shown below.

The estimator benefits from a priori knowledge of the antenna beam shape, whereas the maximum echo voltage A9 normalised with respect to the RMS noise voltage (or, equivalently, the peak signal-to-noise ratio (SNR) R0 = jA2) is generally unknown. t. the antenna beamwidth) and other causes of error are completely neglected. 147) where 6B is the — 3 dB beamwidth and K = 4 In 2. e. ) is the PDF of the ith amplitude sample. 149) Let us denote £ ( 0 t - 0 r ) by g{ and dg(B{-0j)lddT by g\. 150) and the ML estimation procedure (eqn.

G. of the azimuth angle of a target). In these cases and in many others, by applying the ML criterion, one obtains a system of non-linear equations that can be resolved numerically with iterative f This section may be omitted from a first reading. methods, or can be linearised around some working point: in any case, very rarely can a closed form exact solution be determined. As an example of the solution of a practical problem we will discuss here the classical problem of the azimuth estimator for a pulsed radar or, equivalently, a secondary surveillance radar (SSR) [32].

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Advanced Radar Techniques and Systems (IEE Radar, Sonar, Navigation and Avionics, No 4) by Gaspare Galati

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