首页>
外国专利>
APPARATUS FOR DETECTING A MICRO SIGNAL, PARTICULARLY FOR EFFICIENTLY REDUCING A NOISE INFLUENCE ON THE SIGNAL DETECTION
APPARATUS FOR DETECTING A MICRO SIGNAL, PARTICULARLY FOR EFFICIENTLY REDUCING A NOISE INFLUENCE ON THE SIGNAL DETECTION
展开▼
机译:用于检测微信号的设备,尤其是用于有效降低对信号检测的噪声影响的设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: An apparatus for detecting a micro signal is provided to improve the detection sensitivity of a micro signal by using the signal having a high SNR when detecting a detection target signal of a target frequency band from an input signal.;CONSTITUTION: A reference signal generating unit(110) generates and outputs a reference signal having a frequency identical to the frequency of a detection target signal included in an input signal. A frequency mixing unit(120) generates a synthesized signal by multiplying the input signal with the reference signal, and a filtering unit(130) extracts a signal corresponding to the second harmonic wave component for the frequency of the detection target signal from the synthesized signal. A signal detection unit(140) detects the detection target signal from the signal outputted from the filtering unit.;COPYRIGHT KIPO 2010
展开▼