Search

The issue designs a high-definition digital processing platform, present algorithms of image sensor decoding and image enhancement pre-processing and its implementation. Firstly, the framework of the high-definition digital processing platform is introduced. Then the image sensor decode algorithm is given in detail. Finally the paper introduces the framework of the pre-processing algorithm. The major function block of the pre-processing algorithm is discussed in detail, including image filtering, image sharpening, gamma correction, white balance. Experiment results prove that the proposed method improves the image quality captured by CMOS sensor effectively.

As a global fashion retail chain giant, Hennes&Mauritz began its marketing operation in China in 2007. Hennes&Mauritz has acquired pretty well marketing effect and shown its brilliant characteristics in China. The brand and products of Hennes&Mauritz have been highly concerned and recognized by China's consumers. This paper aims at analyzing the marketing situation of Hennes&Mauritz in China, and exploring its marketing strategy in China.

An intelligent radar signal sorting system with a robust radial basis function (RBF) is presented in this paper. This system can automatically sort the random overlapped radar signal stream and separate the input pulse stream to individual radar pulse sequence. Because tradition Gaussian neural network uses Gauss function as its basis function and adopt gradient descending method to adjust parameters. So the tradition method is likely to produce some non-expectation in learning process. In order to solve the problem, the proposed RBF uses Log-Sigmoid function as its basis function, so it eliminates any risk of instabilities, and it has better learning properties and function approximation capabilities. This algorithm ameliorates the traditional algorithm and enhances the robust properties of learning process. For one thing, the method can adapt to the complicated electromagnetic environment demand due to its self-adapting capability. For another, it can overcome the difficulty that the data have too much noise due to the detection system faultiness. Simulation results demonstrate the obvious superiority of this algorithm.

Currently, with the extensive application of electronic devices and systems, the interests in ESD failure in electronic devices had mushroomed rapidly. There were many approaches to analysis static failures. The electronic parametric measurement was the most common approach for parts detection. With high-frequency low-noise Silicon dynatron transistors, in order to find the most sensitive parameter of ESD damage/failure, nearly all the normal electrical characteristics were measured and compared before and after ESD injection. By statistic and analysis, it was observed that saturation falloff, forward break-over voltage, correlated power gain, noise figure and junction capacitance were not sensitive to ESD, reverse breakdown voltages and cutoff currents were more sensitive. Especially, VBRCEO and ICEO of high-frequency low-noise Silicon dynatron transistors were the most sensitive to ESD injection.

In the shielded room, the effect of different factors, which includes different polarity of potential, direction of polarization of antenna, receiving distance, the shape of discharging needle, temperature and humidity etc., on the spectrum of signal radiated from corona discharge. According to the experiment, it concludes that the waveform of signal radiated from corona discharge has a steep rising edge; the spectrum of signal radiated from corona discharge is continual spectrum, which frequency range is from 20MHz to 100MHz; when the polarity is different, the waveform of signal radiated from corona discharge is different, and the amplitude of signal of positive corona is higher than of negative corona; the politicization mode of fields radiated from corona discharge is vertical; the intensity of fields radiated from corona discharge is inversely proportional to the receiving distance; the relative humidity is different, the amplitude of signal is different, the higher the relative humidity is, the higher the amplitude is.