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This paper presents a detailed noise and non-linearity analysis of a 10-bit 1.2Vppd 50MS/s charge-injection based SAR-ADC designed in a 65 nm low power process. Being more area-efficient in contrast to a conventional capacitor DAC, a charge-injection-cell-based DAC allows to reuse its DAC cells during binary search. Based on extensive calculations and transistorlevel simulations, the charge-injection...
Parkinson's Disease (PD) is a neurodegenerative disorder that is frequently correlated with vowel articulation difficulties. The phonation problem arises in patients affected by PD is commonly known as Parkinsonian Dysarthria and identifiedby vocal signal analysis. The analysis supporte physicians and specialists in early detection and monitoring of dysarthria aiming, to increase patients life quality...
• Signal Integrity is increasingly challenging as data rate increases – form factor – cost • Some critical aspects of signal integrity are discussed and mitigation strategies presented – Loss, impedance matching, crosstalk, etc. • Non-ideal effects of interconnect need to be taken into account in high speed interconnect design • Equalization, Jitter, Eye-diagram are critical Signal Integrity fundamental...
Conventional decision feedback equalizers (DFEs) suffer from the fundamental drawback of shrinking rather than increasing data eyes when consecutive 1s or 0s are present in data. To combat this drawback, a new data-transition adaptive DFE is proposed. The proposed DFE takes into account the dependence of post-cursors on the polarity of data and searches for optimal tap coefficients using a sign-sign...
The 1588 Precision Timing Protocol (1588-PTP) states that a timestamp event is generated at the time of transmission and reception of any event message and that the timestamp event occurs when the message's timestamp point crosses the boundary between the node and the network (event generation points). The protocol defines the message timestamp point for an event message as the beginning of the first...
Frequency domain methods of extracting equivalent series resistance (ESR) and equivalent series capacitance (ESC) for on-die decoupling capacitors using spice-like simulators are briefly reviewed. A concise method is then proposed for converting the frequency domain equivalent ESR and ESC to an approximate broadband equivalent circuit which can be readily used in time domain simulations. The method...
Acoustic parameters are very useful in voice screening, diagnosis and rehabilitation, and also in forensic voice comparison tasks. In this paper we present results for the acoustic analysis performed by two different voice analysis platforms and involving five sustained vowels uttered by 10 female speakers and 9 male speakers. We consider contemporaneous high-quality (HQ) and GSM voice recordings,...
Currently and due to its wide use, the wireless networks in conformance with IEEE 802.11 standard are generating channels saturation, that provokes interference between themselves. IEEE 802.11n is one of the standards that offers greater benefits to improve the wireless network performance. In this paper we analyze the performance of wireless network in conformance with IEEE 802.11n standard to evaluate...
An analytical model of power supply noise induced jitter (PSIJ) at inverter chains is proposed. Based on the piecewise linear approximated I-V curve model, closed-form equations of PSIJ transfer function at a single inverter are derived. The PSIJ transfer function of an inverter chain output is then obtained by linearly stacking the single inverter-PSIJ transfer functions. Accuracy of the proposed...
An efficient and accurate jitter modeling methodology for unmatched transmitter/receiver is proposed to close the gap among different disciplines, namely signal integrity, power integrity, and silicon design. This method accurately predict system timing risk, and provide design recommendations for silicon.
In the rapid growth environment, internet plays a vital role in each and every one's life. As to reach high performance communication in the network, electronic devices are the most important element to forward multimedia messages from one place to another place. Whenever unaccountable messages are passing from one node to another node there are heavy collision and congestion in the network because...
A novel feature extraction method for low-dimensional signal representation is presented. The features are useful for classification of non-stationary multi-component signals with stochastic variation in amplitudes and time-frequency locations. Using a penalty function to suppress the Wigner-Ville ambiguity function auto-terms, the proposed feature set is based on the cross-term doppler- and lag profiles...
For flight attitude control problem affected by nonlinear property of hypersonic vehicle, the influences of nonlinear factors which are driving space, stiffness, friction torque in the electric servo mechanism are analyzed in this paper, and the definition and generation conditions of limit cycle caused by the backlash are also discussed. For the problems of limit cycle oscillation and the airfoil...
Background Modelling is a crucial step in background/foreground detection which could be used in video analysis, such as surveillance, people counting, face detection and pose estimation. Most methods need to choose the hyper parameters manually or use ground truth background masks (GT). In this work, we present an unsupervised deep background (BG) modelling method called BM-Unet which is based on...
In this article, we analyze the performance evaluation of WiFi technology in conformance with IEEE 802.11b/n/ac standards and Wireless Distribution System (WDS) for indoor environments with and without obstacles. We present different scenarios by varying the distance between transmitter and receiver. We analyzed the performance of the network by using the intrusive technique of traffic injection with...
Jitter is a critical factor to the performance of highspeed signal links. Jitter can be modeled as a random process. Both the probability density function (PDF) and the spectral characteristics of the jitter are important for evaluating the impact to the channel performance. The concept of numerical conditional probability density function (NCPDF) and a new statistical method called FastBER are proposed...
This paper focuses on proposing approaches for the improvement of Voice over Internet Protocol (VoIP) service quality in Wireless Mesh Network (WMN). While WMNs have self-healing, self-forming and dynamic topology features, they still pose challenges for the implementation of multimedia applications, such as voice, in various scenarios. The research has been conducted using a network simulator and...
The use of the Internet has become very important in our daily life. Therefore, the quality of the network is becomes very important. There are several protocol and technology in the Internet network. In this paper we analyzed Multi-Protocol Label Switching (MPLS) compared to Non MPLS. We compared the throughput, packet loss, and Jitter. We used the tools such as Iperf, Wireshark and routing table...
Multiple IFoF has long been a promising method to provide a high bandwidth efficient solution to connect remote radio unit and baseband unit pool in C-RAN architecture. To obtain stable performance, it is desirable to make frequency conversion and multiplexing in digital way, which makes ADC/DAC inevitable. In this work, we study the quantization noise and sampling jitter effect upon multi-IFoF system,...
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