Cyclostationarity-based detection
WebThis paper extends the BD method, which is based on maximizing the second-order cyclostationarity, to maximize the generalized Gaussian cyclostationarity to extract fault features from non-Gaussian signals. In addition, the generation of the weighting matrix now incorporates the estimation of fault frequencies. Webcyclostationarity and the coefficients, referred to as cyclic autocorrelation functions, are continuous functions of the lag parameter. Cyclostationary processes are characterized in the frequency domain by the cyclic spectra, which are the Fourier transforms of the cyclic autocorrelation functions. The cyclic spectrum at a given cycle frequency
Cyclostationarity-based detection
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WebDec 12, 2024 · Energy detection- and matched filter-based spectrum sensing methods are discussed in detail. The performance of the proposed algorithm was tested over non-fading and different fading channels for low signal-to-noise ratio regime with noise uncertainty. ... Cyclostationarity-based soft cooperative spectrum sensing for cognitive radio … Webfilter and cyclostationarity based hypothe-sis test, gives better detection performance as compared to energy detection and cy-clostationary detection without FRESH filters. …
WebMar 24, 2024 · Here, the investigation was carried out through the cyclostationarity-based detection algorithm, whereas the outcome obtained from the cyclic autocorrelation function is applied to the signal detection. The presented algorithm yields better performance for various channel constraints. WebApr 10, 2024 · Although stochastic resonance (SR) has been widely used to enhance weak fault signatures in machinery and has obtained remarkable achievements in engineering application, the parameter optimization of the existing SR-based methods requires the quantification indicators dependent on prior knowledge of the defects to be detected; for …
WebCyclostationary-Signal-Processing/Detection-of-Almost-Cyclostationarity/main.m Go to file 412 lines (348 sloc) 17.6 KB Raw Blame % This is a MATLAB implementation supporting the papers % % "Detection of Almost-Cyclostationarity: An Approach Based on a Multiple % Hypothesis Test" by Stefanie Horstmann, David Ramirez and WebSignal detection is another technique adopted in this work. In order to reduce the interference of the noise to the detection of signal number, some good methods were proposed, such as classic signal detection algorithms containing energy detection , matched-filter detection , cyclostationarity-based detection , etc.
WebApr 9, 2024 · The analysis of vibratory signals is an important subject in the field of researches on the diagnosis of mechanical breakdowns in rotating machinery. A number of signal processing methods are classified as classical tools, such as statistical analysis, FFT, envelope analysis (EA), and some time-frequency methods such as wavelet multi …
WebJun 5, 2009 · The use of cyclostationarity based methods for distributed signal detection and classification are presented. Examples are given to illustrate the concepts. The Matlab codes for some of the algorithms described in the paper are available for free download at http://filebox.vt.edu/user/bramkum. shutdown how toWebOct 1, 2015 · The cyclostationarity feature detection method exploits the cyclic stationary features of the received signals for detecting primary user transmissions [ 19, 20 ]. Periodicity in the signal or in its statistics, like mean and autocorrelation, results in cyclostationarity features [ 21 ]. shutdown htWebThus, in such a case, cyclostationarity-based algorithms that in principle are expected to improve performance by increasing the data-record length, provide biased estimates when the data-record length is such that the ACS model is not appropriate and the GACS model should be considered (Section 12.7.2 ). View chapter Purchase book the oxford pub• Cyclostationarity has extremely diverse applications in essentially all fields of engineering and science, as thoroughly documented in and. A few examples are: • Cyclostationarity is used in telecommunications for signal synchronization, transmitter and receiver optimization, and spectrum sensing for cognitive radio; the oxford property groupWebJan 17, 2008 · The hybrid algorithm is a combination of the energy detection and the cyclostationarity-based methods. In the majority of related works, the input signal for … shut down hp printerWebJun 1, 2013 · The proposed multi-variate non-parametric average sample power and cyclostationarity-based quickest detection scheme is … shutdown hyperflex clusterWebJun 10, 2024 · The cyclostationarity detection system model based on second-order cyclostationarity for MIMO systems is briefly introduced in Section 3. In Section 4, the proposed spectrum sensing methods for MIMO systems based on cyclostationarity and multi-antenna combining techniques are developed. shutdown hp procurve cli