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We study the classical communication over quantum channels when assisted by no-signalling (NS) and PPT-preserving (PPT) codes. We first show that both the optimal success probability of a given transmission rate and one-shot ∊-error capacity can be formalized as semidefinite programs (SDPs) when assisted by NS or NS∩PPT codes. Based on this, we derive SDP finite blocklength converse bounds for general...
Detecting anomalous traffic is a critical task for advanced Internet management. The traditional approaches based on Principal Component Analysis (PCA) are effective only when the corruption is caused by small additive i.i.d. Gaussian noise. The recent Direct Robust Matrix Factorization (DRMF) is proven to be more robust and accurate in anomaly detection, but it incurs a high computation cost due...
In depth-based 3D video systems, noisy pixels in depth map always introduce serious geometric distortions in the synthesized virtual view. To remove the noisy pixels, a spatial-temporal depth filter is developed in this paper by utilizing depth and texture information jointly in a spatial-temporal domain. A pixel vector is introduced by jointly considering texture and the corresponding depth value...
Robust on-chip ESD protection without RF performance degradation is a challenge in RF IC designs. This paper reviews a new co-design technique for ultra wideband (UWB) RF ICs and ESD protection so as to achieve whole-chip design optimization.
We consider a network of sensors wherein the state estimates are sent from sensors to a fusion center to generate a global state estimate. The underlying fusion algorithm affects the performance measure QCC(τ) (with subscripts CC indicating the effects of the communications and computing quality) of the global state estimate computed within the allocated time τ. We present a probabilistic performance...
This paper presents an overview of the co-design technique for broadband RF ESD protection circuit designs. The unique mixed-mode ESD simulation design methodology allows full-chip design optimization and prediction of broadband RF ICs with full low-parasitic ESD protection, which were validated experimentally using ultra wideband (UWB) RF ICs and RF switch circuits in CMOS technologies.
Missing sensor data is a common problem which severely influences the overall performance of today's dataintensive applications. In order to address this important issue, a resilient Extended Kalman Filter is proposed for discrete-time nonlinear stochastic system and measurement equations with sensor failures and random gain perturbations. The failure mechanisms of multiple sensors are assumed to...
This paper reports design and analysis of new low triggering voltage dual-polarity silicon-controlled rectifier (SCR) ESD protection structures and circuits in CMOS. Design optimization technique enables flexible ESD triggering voltage (Vt1), ESD holding voltage (Vh) and ESD protection capability. Measurements show very low and adjustable Vt1, low leakage (Ileak), low noise figure (NF), low ESD-induced...
It is the first time that the Antarctic super low frequency (SLF) and extremely low frequency (ELF) radio atmospheric noise has been measured in China. The time domain profile and the frequency domain profile of the data have been gained by analyzing and processing the measured data, and the change characteristic of the radio atmospheric noise has been discussed along the day, night and the frequency...
This paper discusses critical aspects for co-design of ultra wideband (UWB) system-on-chip (SoC) and on-chip electrostatic discharge (ESD) protection, which are beyond simple data rate and bandwidth considerations. UWB-ESD co-design techniques and experiment results are presented. The designs were implemented in a commercial 0.18 μm RFCMOS.
Wavelet transform has been successfully used in many applications such as image compression, image denoising, and computer vision. Recently, the research of image denoising focused on developing some new method which can represent the edge of image more efficiently. Ridgelets is a new system of representations, which deals effectively with line singularities in 2-D. In this paper, a simple algorithm...
Median filter is a well-known nonlinear filter. The key problem of the application of the median filter in image denoising is the selection of the filter window size. A larger filter window of the median filter will enhances its power in suppressing noise but in preserving edges. In this paper, a multiscale median filter is presented. The advantage of this filter is that though a large filter window...
For the time-variant multisensor systems with correlated measurement noises and different measurement matrices, on the basis of recursive least squares (RLS) method, least squares(LS) method and Kalman filtering theory, two information fusion Kalman filters are put forward. The theory is that firstly Cholesky factorization is used to convert the former multisensor systems into noise irrelative and...
A 3.1-4.8GHz two-stage LNA for Group-1 UWB applications featuring current reuse, resistive feedback, complete and high ESD protection design is reported. ESD-RFIC co-design technique was used to ensure whole-chip optimization. The design is implemented in a foundry 0.18μm RFCMOS. Measurement shows a gain of 13.2dB/14.0dB, excellent input reflection of -13.4dB/-17.5dB, noise figure (NF) of 5.11dB/4...
In this paper we combine two approaches. One is the theory of knowledge graphs in which concepts are represented by graphs. The other is the axiomatic fuzzy set theory (AFS). In both theories concepts are studied and concepts can be set in correspondence. This enables to use algebraic results in the context of knowledge graph theory. As different interpretations lead to different knowledge graphs,...
A 3.1-4.8GHz LNA for lower-band UWB transceiver front-end ICs designed in a commercial 0.18μm CMOS is presented. The LNA features current reuse, resistive feedback, complete and robust full-chip ESD protection. LNA circuits with and without ESD protection are compared to minimize ESD-induced LNA performance degradation. Experiment shows a gain of 13.2dB, excellent input reflection of -13.4dB, NF of...
Based on the Kalman filtering method and white noise estimation theory, under linear minimum variance information fusion criterion weighted by scalars, a multisensor optimal information fusion white noise deconvolution filter is presented for multisensor systems with system deviation,ARMA colored measurement noise and white noise. The formula of computing cross-covariances among filtering errors of...
Wavelet transforms have been successfully used in many scientific fields such as image denoising. Ridgelets is a new system of representations, which deals effectively with line singularities in 2D. However, the discrete version of the ridgelet transform would result in either redundancy or non-reconstruction. In this paper, a pseudo ridgelet transform is developed to overcome this weakness. Since...
For the dynamics system of multiple launch rocket s, measuring error of ballistic parameters will appear under the influence of noise disturbance signals. The method of filtrating and estimating the ballistic parameters in the flight of multiple launch rocket is putted forward based on the theory of Kalman filter in this paper. And a filtrating example is also demonstrated in order to get more precise...
RF ESD protection circuitry design emerges as a big challenge to RF IC design, where the main problem is associated with performance degradation of RF IC due to ESD-induced parasitics. It has been difficult to incorporate the ESD impacts into RF IC design due to lack of proper co-design approach and ESD device models. This paper presents a new ESD-RFIC co-design methodology, including RF ESD design...
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