an important section of range-doppler imaging algorithm in sar systems which needs large number of resources, memories and solution time, is fft on the azimuth dimension. in this paper, by decomposing the fft relation, and converting to smaller dimension ffts, implementation has been simplified. the proposed method, based on removing the extra phase factors reduces the resources, memories and s...

with regard to the society’s need for complicated software and high level of expenses on its development, it is necessary to take all stakeholders’ requirements and the demands into consideration, before any investments and put on the design and utilization stages. software architecture is a technical description of a software system that indicates components and their relationships between the...

Abstract: This paper proposes a novel scheme for multi-static passive radar processing, based on soft-input soft-output processing and Bayesian sparse estimation. In this scheme, each receiver estimates the probability of target presence based on its received signal and the prior information received from a central processor. The resulting posterior target probabilities are transmitted to the c...

This paper proposes an efficient network architecture to improve energy consumption in Wireless Sensor Networks (WSN). The proposed architecture uses a mobile data collector to a partitioned network. The mobile data collector moves to center of each logical partition after each decision period. The mobile data collector must declare its new location by packet broadcasting to all sensor node...

This paper proposes an efficient network architecture to improve energy consumption in Wireless Sensor Networks (WSN). The proposed architecture uses a mobile data collector to a partitioned network. The mobile data collector moves to center of each logical partition after each decision period. The mobile data collector must declare its new location by packet broadcasting to all sensor node...

SUMMARY In this paper, we deal with the perceptual organization which is a crucial problem in computer vision. Perceptual organization consists in structuring the image into perceptually significant groups. These structures will be used in higher level processes such as image understanding or object recognition. The grouping is based on application of the Gestaltic perceptual phenomena. Origina...

In side-channel analysis, the waveforms can be acquired misaligned. Several algorithms have been put forward to resynchronize signals, as a pretreatment before the attack proper. In this article, we examine two of them, namely amplitude-only and phase-only correlation (abridged AOC and POC), and introduce a third one, called thresholdPOC (T-POC) that corrects a flaw of the phase-only correlatio...

software architecture is considered one of the most important indices of software engineering today. software architecture is a technical description of a system indicating its component structures and their relationships, and is the principles and rules governing designing. the success of the software depends on whether the system can satisfy the quality attributes. one of the most critical as...