Monitoring device for real-time feedback of body indexes of special operation personnel

The invention discloses a monitoring device for real-time feedback of the body indexes of special operation personnel. A first-stage amplitude modulation circuit receives weak body index signals of special operation personnel transmitted by a network signal transmission channel, and by means of an oscillator with triode Q1 as the core, the received weak signal positive feedback is subjected to primary amplitude amplification, wherein peak detection circuit feedback is applied to ensure the signal subjected to primary amplification meets the requirements of a post-stage circuit amplitude, and then the signal enters a second-stage amplitude modulation circuit, a double-T frequency selection network is employed as the feedback resistance of an operational amplifier AR2 for amplified amplitudemodulation of the signal, the feedback depth is adjusted by an MOS transistor T1, and the signal meeting the requirement of a body index monitoring server for a signal amplitude ranging from 0V to +5V is output, finally the