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In the field of high-performance and energy-efficient scientific computing, FPGAs are promising candidates. In this paper, we show a case study of applying FPGA-based system for Modified Newtonian Dynamics (MOND) cosmological simulation. The numerical simulation is based on TreePM algorithm of N-body problem. TreePM algorithm combines the PM (Particle Mesh) method on large scales with a tree method...
The narrowband radar imaging algorithms for ideal point scatterers with micro-motion are generally based on the sinusoidal phase assumption. However, for the aerial manmade targets, sliding-type scatterers which slide on the edge discontinuity with the change of incident angle make the phase deviate from sinusoid. In this paper, we propose a narrowband imaging algorithm for sliding-type scatterers...
Multiple starting point optimization is an efficient approach for automated analog circuit optimization. Starting from a set of starting points, the corresponding local optimums are reached by local optimization method Sequential Quadratic Programming (SQP). The global optimum is then selected from these local optimums. If one starting point is located in a valley, it converges rapidly to the local...
Cognitive relay networks have been studied for the advantages of improving the throughput of secondary users. Relay location and power allocation are the key issues in cognitive relay networks, which impact on the system performance. In this paper, we analyze the problem of optimal relay location and power allocation in cognitive relay networks. Firstly, we deduce an ergodic capacity formula for the...
In view of some characteristics of BRT vehicles on roads - special vehicles on special road, for BRT vehicles' visual processing problem, this paper presents an improved method of binary image, compared with color images algorithm which is widely used, the new binary image processing, at the same costs in hardware, through the removal of unnecessary road image information, simplifying the computing...
A novel modular exponent randomizing method is proposed to resist side-channel attack in RSA cryptosystem. The limitation of this method is given and the way of using random values also brings the security benefits. Experimental results show that though the randomized exponentiation sequence can be analyzed, the real private key is still covered. At last, the attack cost for this randomized sequence...
To improve the DPA resistance of cryptographic device in intellectual cards, a power analysis platform is constructed for AES. After analyzed the AES encrypt process, a MASK circuit, disturbance circuit for clock and disturbance circuit for power are designed and implemented in an AES coprocessor of ZTEIC Corporation's intellectual card. The AES coprocessor can process data with 900 Mbps at 100 MHz...
This paper describes the design and implementation of an ultra low power RSA coprocessor. By improving the Montgomery's algorithm, and using several low power techniques on the design of the RSA coprocessor, this paper has designed a RSA coprocessor with ultra low power consumption and high performance. The RSA coprocessor is implemented using TSMC 0.18 um CMOS technology in one of the ZTEIC Corporation's...
In this paper, we present a non-adaptive optimal plan that minimizes the mean search efforts based on the optimal search theory. A non-adaptive plan makes no use of the feedback generated by the search except the query object is found. In particular, we apply our search algorithm on PSB database to retrieve different classes of 3D models. Experiment results showed that the retrieval time to find the...
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