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Noise analysis of a widely used switched capacitor unity gain sampler is presented, which in detail shows that the circuit structure can not only get rid of the offset voltage induced by the OTA involved, but also has the ability of suppressing 1/f noise with operation timing of the sampling capacitor, functioning as correlated double sampling in fact, however paying the price of increasing thermal...
Correlated double sampling(CDS) operation is generally used in CMOS imaging systems, implemented by switched capacitor(SC) circuits, to get rid of reset noise and decrease flicker noise. This paper presents an optimization method for the noise performance of a CDS circuit, the advantage of which is its ability of canceling the offset of the OP involved. The structure of the CDS circuit is analyzed...
Addition of metal inhibitor to corrosive transformer oil was employed to prevent the formation of semi-conductive Cu2S on copper surface. The formation of impermeable layer is the key process, however, little attention were paid on this process. Here, we performed aging experiment with benzotriazole and benzimidazole type inhibitors on copper strips in corrosive transformer oil. The experiment shows...
Based on multidimensional analysis and data mining technology for today's society there are a variety of population-related issues, research and design a practical and efficient population decision support system, discusses the overall design of the system structure and the use of various prediction models.
To resolve problems of poor contrast and sharpness in degraded images, a novel efficient enhancement algorithm based on image fusion is presented in this paper. The proposed algorithm consists of two essentials: the first, the techniques of histogram equalization and sharpening were respectively applied to the same degraded image so that two source images, which individually preserved the enhancement...
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