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The moving targets only exist in a few range cells for space-time adaptive processing (STAP), i.e. targets are sparsely distributed in the entire range cells and most of the range cells are target-free. By utilizing the sparsity of the target distribution, we proposed a novel STAP method based on minimizing the ℓ1-norm of the output magnitude. Unlike the conventional STAP which exclude the cell under...
Considering the demands of driving the plane coil linear motor in Nano-positioning stage, a motor driver with small size and high-power was designed. To improve the accuracy of motor phase current detection, FIR filter and Cerebellar Model Articulation Controller (CMAC) neural network were adopted to reduce high-frequency noise and compensate the non-linear error of current sensor. The feasibility...
A data acquisition system of three-axis integrative fiber optic gyroscope is studied and implemented in this paper. The hardware platform of the system is composed by 32-bit fixed-point digital signal processor TMS320F2812 and high-precision ADC is used to acquire the signals of optical fiber gyroscope in three orthogonal axises. The designs of the system hardware and corresponding software, including...
On the 12th May 2008, an earthquake with 8.0 Ms shook a large area of the Sichuan Province in China. The epicenter of the devastating earthquake was located in Wenchuan, 80 kilometers west-northwest of Chengdu, the capital of Sichuan Province. A lot of scholars have used various remote sensing images and other techniques to detect the disaster. Differential synthetic aperture radar interferometry...
Optical burst switching (OBS) is a promising switching paradigm for next-generation optical Internet backbones. However, there two challenging issues on the commercialization of OBS: burst contention and limited wavelength conversion capability (LWCC). This paper proposes a new signaling protocol for OBS-LWCC networks, namely wavelength-amend-on-demand (WAoD), which is a modified version of the proposed...
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