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The suppression of wideband interference is critical to communication systems, especially in the complex electromagnetic environment, where the power of interference may be 30dB greater than that of the communication signal. In this context, the idea of interference suppression in passive radar is introduced by adding an auxiliary antenna and using a novel adaptive filter based on the fractional delay...
The testing circuit of body noninvasive arterial oxygen saturation is designed according to the characteristics that the light absorption of arterial blood varies with pulse. The driving circuit of testing source and anti-Rossi circuit of compound signal are controlled by DSP sequence signal, and the sending of the testing signal is synchronous with the separation-receiving signal. The high frequency...
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