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This paper presents the methods for data processing technology of 3D points cloud with large unorganized and noisy point sets. Firstly, the noise points will be selected and deleted by the boundary points detection algorithm (BPDA). Secondly, we parameterize the interior points to the sphere model, the octahedron model and the geometry image model. Lastly, we give the error measure of the parameterization...
A low power interface circuit for multisensory system is presented in this paper. A SAR capacitance-to-digital converter (CDC) and a SAR analog-to-digital converter (ADC) are combined together so that capacitance or voltage from different sensors can be measured by the same circuit and converted to digital signal directly. A dynamic comparator with self-calibration is designed to achieve zero-static...
A low-cost, low-power UHF RFID reader transceiver for short-distance applications supporting ISO 18000-6C is presented in this paper, which is implemented in 0.18µm CMOS process. The reader transceiver is composed of a RF transceiver, a digital baseband, a MCU and host interface. In order to be used in consumer products, LDO modules are integrated so that the reader can works with lithium battery...
This paper describes a circuit design methodology to optimize both power and jitter performances of the inductorless voltage-controlled oscillators (VCOs) by utilizing an on-chip supply noise monitoring circuit. As the phase-locked loop (PLL) has a sensitive response to the noise frequency near the loop bandwidth, detecting low frequency tones up to the PLL bandwidth is considered for a supply noise...
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