The shift trigger pulse of the thyristor trigger circuit with integration amplifier is generated by comparing directly principle of three-phase AC and shift-phase control voltage.

With the help of pulse sensors to check up the elderly's physical fitness by GPRS transmitting abnormal signal and GPS realtime positioning to achieve monitoring integration for the elderly.

It not only can implement the digital pulse compression and coherent integration for radar sum and difference signals, but also control the whole radar system.