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The Non-linear Gaussian Recursive Algorithm (NGRA) is a novel algorithm that solves some of the known short range radar impairments. These short range radar impairments include clutter, overlapping echo pulses, antenna pulse distortion, and poor distance resolution. The NGRA accurately models the source signal and subtracts it from the original signal which allows for additional peaks to be detected...
Large test data volume and high test power consumption are two major concerns for the industry when testing large integrated circuits. Linear decompress or-based compression (LDC) is efficient in reducing test data volume, while X-filling during ATPG can efficiently reduce test power with low overhead. However, traditional X-filling methods cannot be reused in the LDC environment. In this paper, we...
To eliminate the requirement for a delay unit capable of processing wideband signals in a conventional UWB transmitted reference (TR) receiver, the slightly frequency shifted (SFS) reference UWB signaling scheme has been proposed in the literature. Motivated by the flexibility of the digital systems and the availability of sophisticated digital signal processing circuits, this paper proposes a digital...
This paper proposes a new hybrid algorithm, which is referred to as FETI-DP-BI, to solve antenna array radiation and scattering problems in electromagnetic simulation. Our mathematical treatment is based on the combination of the dual-primal finite element tearing and interconnecting (FETI-DP) and boundary integral (BI) methods. Decomposed interior FE domains are glued together by the Robin transmission...
In this paper, we first introduce the principles and methods of Support Vector Machine (SVM), then give the methods of determining weights of combination forecasting using Support Vector Machine. This method can overcome the shortcoming of the other combination forecasting, which keeps smaller fitting error and higher forecasting accuracy, therefore the effect of forecasting is greatly promoted. At...
A dual-band power amplifier (PA) which operates at two specific frequencies of 1.8 GHz and 2.0 GHz simultaneously is designed. The input matching circuit has one access with a special matching network which resonates at two frequencies. The output matching circuit is the simple L-type matching network and was designed under the guide of load-pull methodology. The simulated results show that, at the...
Congestion in urban traffic is critical points in the all problems of traffic. Foundational work for improving network traffic condition and preventing traffic congestion is to identify traffic network states effectively. In this paper, a novel evaluate method of urban region transportation level of service is proposed based on the attribute mathematics. The approach proposed in this paper is convenient...
This paper presented the parallel solution of general 3D EM problems using the FETI-DPEM (dual-primal finite element tearing and interconnecting method). An excellent parallel efficiency has been achieved on a cluster system with an automatic decomposition of the computational domain into hundreds of subdomains. In this work, the parallel implementation of the FETI-DPEM method on a distributed-memory...
This paper presented a simple approach to implementing the 2nd-order absorbing boundary condition (ABC) in the FETI-DPEM (dual primal finite element tearing and interconnecting method) without changing the major framework of the method. As a result, the accuracy of the FETI-DPEM method in 3D open-region analysis is significantly improved. Numerical results are provided to validate the implementation...
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