Information technology



THE SUBSTANTIATION OF APPLICATION OF ENGINEERING SYSTEMS WITH VARIOUS SOURCES OF POWER RESOURCES

The expenses connected with the device and service of various engineering systems are defined and then the schedule of dependence of material inputs from term of operation of system is under construction.

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WIRELESS (ZIGBEE) INTRUDER ALARM

Wireless ZigBee network, the optimized structure of a network, programmed control by system.

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Shaping a speech masking signal

The method of shaping a masking signal from a maskable speech signal includes the following stages: the signal goes through a low-pass filter, then it is transformed into a digital form, prestored, pauses are excepted, the signal is read in fragments of different size, the fragments are stored to randomly selected main memory blogs, the stored fragments are synchronously read, the values of corresponding points of fragments digitization are summarized, at that the quantity and duration of fragments determine the formation of normal law (Gauss law) of distribution of probability density of amplitudes, then normalized signal level is formed and transformed into the analog form, pass it through a low-pass filter and the resulting signal is used as a ,asking signal.
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