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Efficient and accurate spectrum sensing is a necessary part in cognitive radio networks. A simple and efficient spectrum sensing technique is proposed to solve the bad performance of spectrum sensing in non synchronous OFDM signals with low SNR regimes. Through the decomposition of the traditional OFDM signal spectrum sensing technology based on cyclostationarity, the real part and the imaginary part...
To remedy such defects as low reliability and unsatisfied accuracy of fault location by traveling wave correlation algorithm (TWCA), a single terminal traveling wave fault location based on fault location algorithm integrating MMG with correlation function is proposed. The surges caused by traveling wave are separated by a new type of MMG transform. Traveling wave surges are held to possess accurate...
One of the important parts of the radar waveform is the range resolution since the targets in front of radar are so different with variety of shapes. In this paper we consider phase coded pulse compression as an effective way for improving joint range resolution and anti-jamming capability of a waveform with a sequence with limited side-lobe level in correlation function. The sequence which is used...
Pulse compression is a desirable approach to design pulses in jammed environment. It is important to have a phase coder sequence which has limited side-lobe level in correlation function, in phase coded pulse compression. This paper is discussing about the anti-jamming property of phase coded waveform which is coded with a sequence which has correlation function with limited side-lobe level. This...
Organization agility of Manufacture enterprise is a complicated non-liner capabilities system. The relationship between organization agility and its influencing factors is just like a “black box”, so it is difficult to describe with define function relation. The paper reviews research work about organization agility, analysis main influencing factors of organization agility, and filter efficient evaluate...
Based on any two orthogonal matrixes with the number of rows of one matrix equal to the number of columns of another matrix, a novel set of complementary sequences is proposed. The constructed complementary sequences with each sequence including a flock of element sequences have ideal auto-correlation and cross-correlation properties, where the correlation function of a complementary sequence is equal...
Image matching is a basic and crucial process for imagine processing. Ant colony optimization (ACO) is a bio-inspired optimization algorithm, it has strong robustness and easy to combine with other problems. However, the basic ACO algorithm has disadvantages of stagnation, and easy to fall into local best. A novel approach to the adaptive template matching based on an improved ACO algorithm has been...
The energy of node in wireless sensor networks (WSN) is severely constrained, it is very important to maximize the lifetime of the entire network. In order to enhance energy efficiency and prolong the system lifetime, a novel energy saving algorithm based on correlation function is presented. Firstly, the relationship between the energy consumption and the length of communication data is introduced...
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