Learning Strategies for Radar Clutter Classification

نویسندگان

چکیده

In this paper, we address the problem of classifying clutter returns into statistically homogeneous subsets. The classification procedures are devised assuming latent variables, which represent classes to each range bin belongs, and three different models for structure covariance matrix. Then, expectation-maximization algorithm is exploited in conjunction with cyclic estimation come up suitable estimates unknown parameters. Finally, performed by maximizing posterior probability that a belongs specific class. performance analysis proposed classifiers conducted over synthetic data as well real recorded highlights they viable means cluster respect their range.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Adaptation of Rejection Algorithms for a Radar Clutter

In this paper, the algorithms for adaptive rejection of a radar clutter are synthesized for the case of a priori unknown spectral-correlation characteristics at wobbulation of a repetition period of the radar signal. The synthesis of algorithms for the non-recursive adaptive rejection filter (ARF) of a given order is reduced to determination of the vector of weighting coefficients, which realiz...

متن کامل

Radar Signal Detection in K-distributed Clutter by Pade Approximation

In this paper, two suboptimum detectors are proposed for coherent radar signal detection in K-distributed clutter. Assuming certain values for several initial moments of clutter amplitude, the characteristic function of the clutter amplitude is approximated by a limited series. Using the Pade approximation, it is then converted to a rational fraction. Thus, the pdf of the clutter amplitude is o...

متن کامل

Configurable Clutter Models for Radar Simulations

In this paper we describe an extension to the MATLAB Phased Array Toolkit that adds a configurable clutter object to model clutter signals returned along a specified signal path. The clutter model is based on the Simkins Unified Clutter Model[1]. The current implementation supports sea clutter in any of five sea states with configurable polarization, grazing angle, and beam width. We describe t...

متن کامل

Radar detection algorithm for GARCH clutter model

a r t i c l e i n f o a b s t r a c t We propose a GARCH model to represent the clutter in radar applications. We fit this model to real sea clutter data and we show that it represents adequately the statistics of the data. Then, we develop a detection test based on this model. Using synthetic and real radar data, we evaluate its performance and we show that the proposed detector offers higher ...

متن کامل

Fusion of Distributions for Radar Clutter Modeling

To recognize an object in an image, an algorithm must identify not only the object pixels, but also non-object clutter pixels. Non-object pixels can be assessed with a priori clutter models that account for the varying terrain and cultural objects. Radar clutter models have been well developed; however, these models typically incorporate a single distribution to capture background effects. In t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: IEEE Transactions on Signal Processing

سال: 2021

ISSN: ['1053-587X', '1941-0476']

DOI: https://doi.org/10.1109/tsp.2021.3050985