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This paper proved a new adaptive threshold in spherical coordinate system based on Besov space norm theory for application of the internet of things (IOT). It presented a new adaptive curve shrinkage function to overcome the limitation of translational functions. The new function could reach and exceed the true value and enhance the image edge. According to the image statistical characteristics in...
Chopping technique is an efficient approach to decrease the 1/f noise and low-frequency offset of CMOS amplifiers, but conventional chopper amplifier consumes large power because it required a wide-band amplifier exceed a chopping frequency and a post low pass filter (LPF) for eliminating modulation noise. In this paper, an improved chopper amplifier for reducing power consumption is presented which...
WANETs is a recent network architecture where the nodes are spread all over the world but behave exactly as if they are part of a single-hop or multi-hop wireless networks at the PHY and MAC layers. Without distinguishing data packets and noise, the Software Defined Access Point (SoDA) samples the wireless channel for the uplink and multicasts the sampled data via Internet to other SoDAs. This leads...
Chopping technique is an efficient approach to decrease the low-frequency offset and 1/f noise of amplifiers. In this paper, a low-power low-noise CMOS chopper amplifier is designed. This chopper amplifier is composed of a two-stage amplifier. The high output impedance of the first stage and the equivalent Miller capacitance of the second stage amplifier constitute together a low pass filter to filter...
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