Patent ID: 9442189
Filing Date: 2016-09-13
CPC Classification: A61B,G01S

Claim Text:
1. A multichannel UWB-based radar life detector, comprising: a UWB bio-radar front-end; and a calculation unit; wherein said UWB bio-radar front-end comprises: a transmitting antenna; three receiving antennas; a pulse oscillator; an electromagnetic pulse generator; and a sampling integrator; wherein said transmitting antenna respectively forms channels with each of the receiving antennas in such a manner that three said channels are formed; said pulse oscillator generates a pulse signal, said pulse signal stimulates said electromagnetic pulse generator for generating a narrow pulse and transmitting said narrow pulse through said transmitting antenna; a reflected signal of said narrow pulse is sent to said sampling integrator through said receiving antenna; said pulse signal generated by said pulse oscillator also passes through a time-delay circuit and a range gate generator for generating a range gate and selecting said reflected signal; said reflected signal is integrated by said sampling integrator and weak signals are detected; said weak signals are amplified by an amplifier and filtered by a filter for obtaining three radar echo signals; said radar echo signals are sampled by a high-speed A/D data acquisition card and sent to said calculation unit for analysis, in such manner that biological information and 2-dimensional position information of multiple human targets are finally obtained.