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With the rapid development of science and technology and the growing popularity of computer networks, the scale of network users is gradually expanding, and the behavior of network users is becoming more and more complicated. A large number of studies show that the user's actual interest is closely related to the browsing behavior on the web page. Through the user browsing behavior analysis can obtain...
An analog front end suitable for powerline communication HomePlug AV2 is firstly presented. Targeting different input power level, an attenuation-programmable gain amplifier (AT-PGA) and a low- noise amplifier are adopted as the input stage of receiver, respectively, followed by a fourth-order low-pass filter and a PGA with a build-in feedback control to improve linearity and stay constant bandwidth...
In the satellite formation task, due to a satellite failure or formation task change, it is necessary to reconstruct the formation. In the process of reconfiguration of satellites, satellites anti-collision research is one of the most important links. In this paper, by collapsing the initial covariance matrix of the satellite, the collision probability density function is integrated in the region...
Nowadays, in order to guarantee both system performance and power efficiency, the resistance of nonlinear distortion produced by power amplifier (PA) has been a key issue in the wireless communication research. The traditional predistortion methods require prior knowledge of the amplitude, phase or bandwidth of the input signal, which is not very practical in the real world. To overcome it, we put...
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