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Kinematics is the basis of robotic control, which manages the robots' movement, walking and balancing. As a critical part of Kinematics, the Inverse Kinematics (IK) will consume more time and energy to figure out the solution with the degrees of freedom increase. It goes beyond the ability of general-purpose processor based methods to provide real-time IK solver for manipulators with high degree of...
John's test, which is also known as the locally most invariant test for sphericity of Gaussian variables, is one of the most frequently used methods in multichannel signal detection. The application of John's test requires closed-form and accurate formula to set threshold according to a prescribed false alarm rate. Asymptotic expansion is a powerful method in deriving the threshold expressions of...
In this paper, we focus on the problem of how to design a methodology which can improve the prediction accuracy as well as speed up prediction process for stock market prediction. As market news and stock prices are commonly believed as two important market data sources, we present the design of our stock price prediction model based on those two data sources concurrently. Firstly, in order to get...
Although noncircular (NC) signals are frequently encountered in wireless communications, their statistical property has not yet been utilized in state-of-the-art methods for spectrum sensing. In this paper, a variant of Hadamard (HDM) ratio test is devised to exploit the NC property of the primary signals for spectrum sensing, which is named the NC-HDM algorithm. As the NC-HDM approach is able to...
A compact broadband balun on a silicon substrate is proposed for millimeter-wave applications. By utilizing a novel defected ground structure, it is expected that the balun exhibits an amplitude balance less than 0.5 dB and a phase balance less than 2 degrees in a frequency range from 26 GHz to 80 GHz. The insertion loss is less than 3 dB in the operational frequency band. The balun achieves a bandwidth...
Modern greenhouse is becoming more and more complex and big, traditional manual control has been incompetent for the greenhouse control. Automatic control could greatly improve the work efficiency. PID (Proportional Integral and Derivative) controller is the most effective way to control the greenhouse microclimate. Recently some advanced control methods have been investigated, but most of them are...
Facility agriculture area in China is expanding, and is leading the world. However its ecosystem control technology and system is still immature, with low level of intelligence. This puts significant constrain on the efficient, high-quality, safe and sustainable production of facility agriculture. Promoting application of modern information technology in agriculture will solve a series of technical...
Internet has become an important platform of information publishing, exchanging and accessing. Recently, agricultural products and food safety relating news become hot posts on internet, which profoundly impacts daily life and public affairs management. The real-time and propagation characteristics of internet information makes internet public opinion becomes a more and more important food safety...
Existing agriculture information systems can meet general storage and general management requirements, however, on intensive management mode, users need to visit and gather resources and data in multiple heterogeneous information systems that distribute in different location of the web. These heterogeneous information systems not only have difference in platform construction, geography location, business...
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