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A novel model of heterogeneous multiple dynamic agent systems is established, which describes the chasing process between a group of agents and their quarries. In the model, the group is modeled based on inter-individual attraction and repulsion, that is, each individual can neither move away from the whole group nor get too close to other members. Moreover, two functions are introduced to reveal...
This paper describes a systematic approach to design FPGA package for current carrying capability. As we examine silicon, interposer, and package, the profound challenge is found to meet the lifetime of high power device against the greater chance of failures owing to worsen electro-migration in every interconnect level. Our approach consists of practical methodologies to estimate current distribution...
Generally speaking, controllability of multi-agent systems refer to transferring the remaining agents of such system from any arbitrary initial state to any final state by controlling dynamics of a small amount of agents under exchanged information between each other, which makes the system reflect the effect of a whole, that is the complete controllability. Comparing with the complete controllability...
Interval-valued information systems are generalized models of single-valued information systems. However, there are few studies on incomplete interval-valued data, which exist in many practical issues. In this paper, we propose a dominance relation for incomplete interval-valued information systems. Based on the dominance relation, the concepts of knowledge information entropy, knowledge rough entropy,...
Incompleteness in interval-valued information systems has leaded to many difficulties in acquiring knowledge. Rough set theory, proposed by Pawlak, has been widely used to deal with uncertainty, granularity and incompleteness of information. In this paper, we propose a θ-rough model for incomplete interval-valued information systems based on tolerance-similarity relation. Moreover, the accuracy, roughness...
In recent years, the requirement of high-end electronic product is higher signal speed, storage capacity and lower power, the bandwidth of package physical design becomes more critical, such as layer count reduction, package routing density. Therefore, there are many electrical validations in a package design, including PDN (Power Distribution Network) and SSN (Simultaneous Switching Noise). In order...
Deep Convolutional Neural Network (CNN) is one of the most popular methods for image processing and recognition. There are many research works to improve the performance of CNNs. However, as an important part of CNNs, convolution kernel has rarely been discussed. As one Original Convolution Kernel (OCK) can only detect one type of visual feature with a fixed deformation, the networks using OCKs may...
As an important infrastructure, space information network is based on platforms such as satellite, balloon and airplanes, it acquires, transfers and processes real-time information and can support ocean going, emergent rescue, navigation and spacecraft tracking, deep space exploration and dynamic, high-rate data transmission. When ground users access the space information network, the channel will...
The Autonomous Trajectory Planning and Adaptive Control (ATPAC) architecture is proposed in this paper to achieve UCAV autonomous navigation during strike mission with unknown threats. The ATPAC architecture is consisted of a navigation module and a flight control module. The navigation module is implemented by policy-gradient learning algorithm coupled with expectant direction search (EDS) strategy...
This paper presents crosstalk mechanisms due to sold balls and/or holes arranged in the power/ground plane. This paper explains how to identify coupling mechanisms and how to control the crosstalk within manageable strength.
Dissipation factor of the capacitor can be measured precisely by capacitance bridge. A kind of transfer circuit containing the auxiliary balancing circuit is used to compare the four-terminal resistor and the standard capacitor. Voltages of the two kinds of impedance are sampled synchronously by a two-channel digitizer. The phase difference of the voltages is computed by improved DFT algorithm. Based...
This paper addresses the second-order synchronization between two nonlinear coupled networks with heterogeneous nonlinear dynamics and time-varying delays. In order to obtain second-order synchronization, a controller and adaptive laws are designed. By constructing the Lyapunov function, it is proved that the position and the velocity of two heterogeneous nonlinear coupled networks with time-varying...
At present, more and more courses and exams are held in the college computer room, which leads to more complex operating environment and higher system requirements, so the systematic maintenance work is very difficult. In the article, we develope a control system by c# language, which combines with the actual usage of room and the blank space of the computer room management, aimed at focusing on monitoring...
Jitter margin loss as result of crosstalk impairment emerges as increasing challenge at 28Gbps and beyond. As silicon compensation is known ineffective to crosstalk, package becomes critical path of system jitter margin. At this speed, signal coupling needs to be kept at well below -50dB in order to ensure adequate insertion-loss-to-coupling ratio (ICR) for protocol jitter compliance. In this paper,...
The power distribution network on package generally consists of multiple power domains. It is required for each power domain to deliver a robust and stable voltage, which allows the analysis to be done within each domain structure. Therefore, the power noise transfer from a noisier power domain to the neighboring quieter power domain is seldom considered, while it can lead to the performance failure...
As memory speed goes up higher and I/O counts continue to increase, simulations estimating SSN-induced jitter are necessary for timing quality [1]. Traditional SSN-induced jitter simulation for high-density I/O designs normally calculates transient noise from multiple aggressors on one victim in one time domain simulation. Multiple number of simulations are required to ensure the signal pin with worst...
The recent market demand to high power 16nm FPGA has challenged package design to an unprecedented level. Specifically, logic tense applications require significantly greater dynamic current than previous generations. This paper describes recent advancements in high power FPGA package design for current-carrying capability. Firstly, new design methodologies are introduced that can link physical design...
As FPGA strengthening its role from high performance computing, wireline/wireless to accelerator in data center, the needs for high frequency and logic element drives up current and powers consumption rapidly. A few years back, sub-100W would represent most top line applications. Today, FPGA devices of hundreds of amperes and watts are at high demand, especially the stacked silicon line product. Package...
The applications to increasing number of transceivers and data rate require extra ground pins (i.e. BGA balls) reserved for channel isolation and crosstalk control. To improve total pin utilization, a transceiver package often resorts to power pins to replace up to 50% of ground pins. However, power pins can fail providing adequate isolation for transceivers operating at 16Gbps and higher data rate...
Bayesian Network is one of the most efficient and reliable method in data mining, and Bayesian Network structure learning is a key link in the process of Bayesian Network research. Aiming at the problem of the classic Hill-Climbing algorithm is easy to fall into local optimum and low in efficiency, establishing the Most Weight Supported Tree by calculating the mutual information, and combining the...
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