| 摘要 |
A Doppler radiowave device of a protective signaling system relates to alarm systems. The device comprises in series connected: a transmitter, a reference generator, a mixer, output of the reference generator is connected to the said mixer, second output of which is connected to transmitter input, a receiver, output of which is connected to mixer second input, a anti-aliasing filter, a low-frequency amplifier, an analog-to-digital converter, a discrete wavelet converter, a threshold device, an adder, a decision-making block. Incorporation of the other units in the construction of the Doppler radiowave device of a protective signaling system provides enhancement stability to false responses and threshold extension of minimal rate for moving objects in the control area. |
