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In this paper, a vision-based moving target interception approach is proposed based on motion prediction and online path and velocity planning. For motion prediction, a fusion method of two motion prediction approaches with historical motion data is proposed to forecast the robot motion. With the predicted target pose as the subgoal, an optimal path is selected from a set of the third order Bezier...
In WSNs (Wireless Sensor Networks), sensor nodes are typically battery powered. As a result, network lifetime becomes a major optimization objective in the design of a WSN. We investigate the problem of lifetime-aware data collection in a WSN with only one base station. We propose an efficient distributed algorithm for constructing a routing DAG (Directed Acyclic Graph), namely, R-DAG, for data collection...
The traditional ant colony algorithm is based on the positive feedback mechanism. In essence, this guidance is conducive to the convergence of the algorithm but is not conducive to the diversity of the search. In order to shorten the length of the path of the optimization, this paper proposes an improved ant colony algorithm to improve search diversity. The algorithm, the positive feedback, the inverse...
The definition of fractional differentiation and its approximation method are firstly introduced in this paper. Then the basic principle of time-frequency domain method is expounded, and the correctness of time-frequency domain method in the solution of fractional order differential equation is proven while combining with three different numerical analysis methods. Finally, time-frequency domain method...
Chinese Mandarin is a tonal language. Tone perception ability of people with sensorineural hearing loss (SNHL) is often weaker than normal people. To help the SNHL people better perceive and distinguish tone information in Chinese speech, we focus on real-time tone enhancement method for mandarin continuous speeches. In this paper, based on the experimental investigation on the acoustic features most...
This paper studies the cross-language speaker adaptation for HMM-based speech synthesis. To solve the problem when the adaptation data and the main corpus are not in the same language, we proposed a label transform based cross-language speaker adaptation approach. In order to transform the phone sequence between English and Chinese, a new Mandarin-English phonetic alphabet — HCSIPA is designed. Then,...
Phytoremediation is the use of living green plants for in situ risk reduction and/or removal of contaminants from contaminated soil. Phytoremediation is an energy efficient, aesthically pleasing method of remediating sites with low to moderate levels of contamination. Phytoremediation in the actual application process, there is a longer time to repair, the repair efficiency is not high. Intercropping...
In this paper, we address the problem of Intention understanding for Chinese Mandarin spoken commands. Unlike the previous works, we propose an intention understanding approach including not only the detection of command content, but also the detection of user's affective state. For command content detection, we propose a strategy of keyword combinations analysis using concept restrictions, based...
The general macroscopic examination of semen evaluation includes sperm density, concentration, motility and morphology. Among these general evaluations, the morphology assessment is widely considered to be one of the most important evaluations of male sperm characteristics. With the use of computer-assisted sperm analysis (CASA) techniques, more objective, accurate and precise outcomes of sperm morphology...
In the training process of HMM-based speech synthesis systems, the states of the HMM models are clustered based on the context features labeled on the training corpus. A good feature set would enable the synthesis system to generate natural prosody. In this paper, in order to synthesize interrogative intonation, we analyzed the acoustic features of the interrogative intonation and the context features...
In a cognitive network, secondary users can coexist with primary users by opportunistically exploiting the frequency bands of primary users. However, secondary users should constrain themselves to avoid interference to primary users based on the sensing technology. This paper investigates the method of increasing the spectrum efficiency in cognitive network within external interference. We consider...
In speech communication, humans are able to perceive not only the acoustic features but also the articulation state from speech sounds. Some specific articulation configurations can carry certain non-linguistic information such as emotion. However, the relation between articulation and acoustic features is still not clear. To clarify such a relation, we analyzed speech data from the emotions of cold...
Based on modulated frequency stepped signal model, the interference phase which impacts the precision of the least burst error velocity measure method is analyzed in this paper, phase correction factor is given to improve the accuracy of the least burst error velocity measure method for moving targets, finally the signal processing flow is given and the performance is verified by computer simulation.
Most researches about business components address the technical problems to draw the business process into structural model. But the basis of the "modeling" work is illustrating the real process precisely, which is not easy because of the difficulty to extract process information from the knowledge embedded in human experiences, especially when knowledge is held in tacit ways. Considering...
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