SU468249A1 - Device for estimating the expectation of random noise - Google Patents

Description

The invention relates to computing and can be used in estimating the expectation of a random Eguma.

Apparatuses for estimating the expectation of random noise are known, comprising a measuring transducer, an amplifier, an adder, a control unit.

The object of the invention is to increase the speed of the device. This is achieved by the fact that the device additionally contains an extreme value analyzer, the first Bxoii of which is connected to the output of the amplifier, and the second to the second output of the control unit, and a decoder, the first input which is connected to the output of the analyzer of extreme values, the second input from the third output of the control unit, and the output with the second input of the adder.

The drawing shows the block diagram of the device.

The device contains a measuring transducer 1, an amplifier 2, an analyzer 3 extreme values, deshi4 ator 4, an adder 5 and a control unit 6.25

I The output of the measuring transducer 1 is connected to the input of the amplifier 2, the output of which is connected to the first input of the analyzer 3. The analyzer output is connected to the first input of the decoder 4, and its output is connected to the second input of the adder 5. The outputs of the control unit 6 are connected to the second inputs of the analyzer 3, the de-slot 4 and to the first input of the adder 5, respectively.

The analyzer 3 may consist, for example, of two rows of trigger cells, on which the minimum value and the magnitude of the noise realization are recorded. The first series is threshold trigger cells that divide the entire range of possible noise values into tl levels. A trigger cell threshold consists of a key and a trigger. The key inputs are supplied with clock pulses, which determine the upper limit of the frequency range of the noise, the voltage to realize the noise and the voltage of the response threshold. The key output is connected to the zero input of the trigger. The second row also consists of the C. triggers, the single inputs of which are connected to the outputs of the corresponding cells of the first row. The initial state of the triggers of the first and second rows is, respectively, one and zero. The peculiarity of this block is that the minimum value and the scale of the implementation are determined simultaneously with one set of threshold trigger cells, which is typical of an extreme value analyzer measuring only one characteristic. This significantly reduces the measurement accuracy of these characteristics and increases the speed of this procedure without complicating the block circuit, for example, by measuring them in parallel using two sets of threshold trigger cells. The proposed device works as follows. Random noise of any physical nature is supplied to convert the electrical voltage (current) to transmitter 1, after which random noise is shifted by the initial level value c and amplified widely by the linear amplifier 2 to the values necessary for operation of the analyzer 3 extreme values after which is fed to the analyzer signal input. If the noise value exceeds the response threshold of either the trigger from the upper half of the first row, or less than the trigger response threshold of the lower half of the row, respectively, the trigger of block 3 goes to the state O and the pulse from its output enters the single input of the corresponding trigger of the second row, translates it into position 1. Therefore; after passing through block 3 of the entire implementation of noise with duration T, the threshold trigger cells, whose response thresholds lie within the scope, DT where (t) and Sj, yj (t) respectively QWC are the maximum and minimum implementation values, go to the state O and translate the corresponding cells of the second row to state 1. Thus, the first row of triggers fixes | "Y (t) - this characteristic is quantitatively determined by the number of lower flip-flops remaining in the state, and the scope of the implementation is qualitatively determined by the number of triggers of the second row that have passed to the state. The duration of the implementation is controlled by the control unit 6, which also permits the insertion through a decoder 4 of a series of pulses and a signal input of the adder 5, which quantitatively characterize the value of the initial level Co. At the end of the implementation time, a pulse is applied to the polling input of the decoder 4, in accordance with which a series of polling pulses sequentially translates triggers of the second row of block 3 to the opposite state. The pulses arising from the transition of the flip-flops from the state 1 to the state O through the decoder 4 arrive at the signal input of the adder 5. Thus, we have to the sum of the H mator. W.- + Co. Then, a pulse is applied, according to which the trigger outputs in each row of block 3 are connected to the next counting input and a signal is successively sent to the counting inputs of the first triggers of each row. In this case, all the triggers of the lower part of each row are transferred to the state O and the pulses arising in this case, which numerically characterize twice the minimum implementation value, through the decoder 4 are fed to the signal input of the adder 5. Thus, in the adder 5, we have ). , because) „„ „(T) + N. The decoder 4 controls the procedure of pulsing from block 3 to block 5. Then the pulse arrives at the control input of the adder 5 and allows the output of the measurement result XT; his scoreboard. The fault inputs of blocks 3 and 5 receive a pulse and return the blocks to the initial state. The invention of a device for estimating the expectation of random noise, comprising a measuring transducer, an amplifier, a KOTOpoio input is connected to the output of a measuring transducer, an adder, a control unit, the first output of which is connected to the first input of an adder, which is the purpose of improving the speed of the device, it contains an analyzer of extreme values

the first input of which is connected to the output of the steppe, and the second input to the second output of the control unit, and desh (the first input of which is connected by the output

the extreme value analyzer, the second input with the third output of the control unit, and the output with the second input of the adder.