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Transmitter and receiver homologous system, which contains down-conversion, A/D sampling, digital signal management, D/A recovering and up-conversion, effect the signal passing through the system. This paper presents the corresponding signal transmission model of the system, analysis the influence of phase noise on the signal, and deduces the formula for the first time that describing signal changes...
Through a number of lemma and theorems, nuclear clustering method proposed in this paper solves a class of space-metric nuclear clustering, which uses matrix elementary transformations and adopts a nonlinear mapping to extract differentiate and amplify characteristics of useful information. This method strives to avoid clustering that uses the characteristics of the sample directly. Even though the...
In order to improve the robustness and accuracy of the credit evaluation model, we study on individual credit risk, select a statistical method of Logistic regression and a non-statistical method of neural network BP algorithm, which are most frequently used methods by domestic and foreign banks. Furthermore, we separately improve these two methods to some degrees, using Clementine tools to build...
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