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Considering the real-time and stability for data acquisition in bridge rubber bearing test machine, the hardware platform used em9260 core board and Constructed the Embedded data acquisition system based on ARM9 With dialgauge, load sensors, data acquisition cards and other hardware. The system of the structure is discussed in the Article, which presents the External hardware circuit and the flow...
In this paper, we propose a novel automatic gain control (AGC) algorithm, which is applicable to a commercially available chirp-spread-spectrum (CSS) device. Because of the property of long guard time in the CSS, it is difficult to make use of the conventional AGC algorithm which only uses one window size to estimate the power of signal. Due to using only one window size, there is a tradeoff between...
In this paper, we present a RBF-based backstepping scheme for the semi-active control of landing gear system using high speed solenoid valve actuator. The full dynamics of a novel semi-active shock strut including solenoid valve are considered. The proposed nonlinear controller is based on a hierarchical structure which contains three loops. The outer loop computes the expected optimal strut force...
This paper presents a novel blind video watermarking method based on the stability of the direct current (DC) coefficient values in blocks transformed by discrete cosine transform (DCT). The frame is randomly selected to embed watermark, and then its luminance is blocked by 8-by-8 and transformed by DCT. The watermark is embedded in the high frequency coefficient of some consecutive DC coefficients...
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