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This paper stated a novel method of protecting power amplifier in electromagnetic susceptibility (EMS) test. According to little changing of SWR amplitude with fixed impedance, the possible large power output could be predicted based on the current low power, achieving the aim of equipment protection. It is proved in actual test example that that novel method could be operated expediently and put...
The independent component analysis and wavelet transform technology are used to separate and identify the internal combustion engine noise signal. According to the basic principle of independent component analysis, FastICA based on negative entropy great with the good stability and convergence speed algorithm is applied to separate the noise signals of six cylinder diesel engine. And the noise signals...
With the rapid development of network economy, C2C e-commerce shows increasingly prominent in the consumer goods market. At the same time it has brought a series of new problems about credit and security of transactions. This paper analyses the shortcomings of existing credit evaluation system; presents an improved model of credit evaluation against the problems and introduces the weight of credit...
In electromagnetic sensitivity (EMS) test, the efficiency and veracity of experiments is strongly affected by automatic amplitude control method of signal generator. There are two aspects in those control method. One is the proper set on the initial value of amplitude. The other one is amplitude adjustment method based on initial value. Based on these two aspects, some efficient ways of automatically...
The registration in augmented reality is a process which merges virtual objects generated by computer with real world image caught by camera. This paper describes the tracker-based registration and the knowledge-based registration, and analyzes the process and current approaches of computer vision-based registration. In consideration of current research challenges, the outdoor registration technology...
A "man-in-the-onboard-loop" solving scheme is proposed in order to overcome the disadvantages of UAV control method and solve the problems on UAV pilot training. This scheme is an integration platform for UAV telepresence and simulation. It uses "telepresence" virtual reality technology to merge the dynamic images from airborne camera and the geography data information generated...
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