SU864292A1

SU864292A1 - Digital smoothing device

Info

Publication number: SU864292A1
Application number: SU792837097A
Authority: SU
Inventors: Александр Николаевич Карташевич; Владимир Владимирович Николаевский; Леонид Владимирович Шестаков
Priority date: 1979-10-26
Filing date: 1979-10-26
Publication date: 1981-09-15

Description

(54)ЦИФРОВОЕ СГЛАЖИВАЮЩЕЕ УСТРОЙСТВО(54) DIGITAL SMOOTHING DEVICE

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Изобретение относитс к специали / ; зированным средствам вычислительной техники и может быть использовано в системах цифровой обработки сигналов.The invention relates to a special /; computer hardware and can be used in digital signal processing systems.

Известно устройство, содержащее цифровое апериодическое звено и цифровое звено вычитани f1.A device comprising a digital aperiodic link and a digital subtraction link f1 is known.

Недостатком данного устройства вл ютс большие аппаратурные затраты.The disadvantage of this device is high hardware costs.

Наиболее близким по технической The closest technical

,J. 10J. ten

/сущности к данному вл етс устройство , содержащее регистр, сумматор, первый вход которого подключен к первому входу регистра, а второй - ко входу устройства, два элемента И, элемент ИЛИ, триггер знака. Это устройство реализует алгоритм сглаживани согласно рекурентной формуле/ Entity to this is a device containing a register, an adder, the first input of which is connected to the first input of the register, and the second - to the input of the device, two AND elements, an OR element, a character trigger. This device implements a smoothing algorithm according to the recurrent formula.

1СГл 1-(СГЛ м1 1 1СГл () 1SGl 1- (SGL m1 1 1SGl ()

« Д Ч-гсглг"D Ch-gsglg

- соответственно - accordingly

СГА 1-1 и 1-тоеMUH 1-1 and 1st

зиачение сглаживакщего сигнала) - текуща i-а zaacheniya smoothing signal) - current i-a

ордината сглаживаемого сигнала. Обычно величииа N. выбираетс раннойordinate of the signal to be smoothed. Usually N. magnitude is chosen early

УКCriminal Code

Мг--Тс/л-Ь-2Mg - Tc / l-b-2

с Сwith C

где m - посто нна величина 2.,where m is a constant value of 2.,

Недостатком этого устройства вл етс то, что оценка математического скидани , вычисл ема с помощью приведенного алгоритма, вл етс недостаточно эффективной дл анализа шумов, сопровождающих случайные им- .пульсные сигналы, так как не учитываетс вли ние самого сигнала на характеристику шума.A disadvantage of this device is that the estimation of the mathematical detour calculated by the above algorithm is not sufficiently effective for the analysis of noise accompanying random pulse signals, since the effect of the signal itself on the noise characteristic is not taken into account.

Цель изобретени - повышение )хостоверности сглаживани .The purpose of the invention is to increase the smoothing host.

Claims

The goal is achieved by the fact that in a known device containing a first register, an adder, and. the output of the adder is connected to the first input of the first register, the second input of which is the input of the device, the output of the adder is the output of the device, the second register, the control unit, the first multiplexer, the second multiplexer and the direct code to additional converter are entered, and the device input is connected to the input : control unit house, first s; jcpToporo move is connected to the first, first and second copoBi multiplexes; second output of the control unit is connected to the third input of the first register, outputs of the nth and p.-il-th bits of the first p The register is connected to the second, third and fourth input of the first multiplexer, the output of which is connected to the first input of the summer, respectively; the third output of the control unit is connected to the first input of the direct code to additional converter, the output of which is connected to the second input of the mapper, the output of which is connected with the second input SECF “GO multiplexer, the output of which is connected to the input of the second register, the output of which is connected to the third input of the multiplexer and the second input of the direct code converter to the additional ny. As well as by the fact that the control unit contains two triggers and an element AND, the trigger inputs of the triggers are combined and connected to the input of the control unit, the output of the first trigger is connected to the first input of the element I, the output of which is the first output of the control unit the output of the second trigger is connected to the second input of the element I and is the second output of the control unit, the inverse output of the second trigger is the third output of the control unit. FIG. 1 is a block diagram of a digital smoothing device; in fig. 2 is a control block diagram. The device contains the first register 1, the second register 2, the adder 3, the control unit 4, the direct code to additional code converter-5, a multiplexer (for three channels) 6, a multiplexer (for two channels) 7. The control unit contains triggers 8.9 and element 10. The device implements a smoothing algorithm according to the recurrent formula rv V,. N-CrA NHCrA- - 2 where X,. - are defined in the same way as in the expression I ОI. & t is the noise correlation interval; - interval between samples. The value is chosen on the conditions of the constant dispersion of noise under the action of a pulse signal of significant amplitude. The coefficient cL is determined as follows: 4 "i-Xi-icrA o; 10, .Х.СГЛ The device operates as follows. The first register I receives the current values of the ordinate of the signal. The second register 2 stores the result of the first input of the multiplexer 6 information arrives at the first input of the adder 3, and its second input, through the converter 5, pptptl IL., enters the information from the second source. 9mg, g ,, .. country i and in the adder readout is performed for V. L - "-" MGA Simultaneously, through multiplexer 7, the control unit 4 rewrites the information -vjcrA ° second register, from the output of the adder 3 the information is entered into first register Depending on the sign of the result of the calculation, ® h-x 1cGA for control 4 connects to the first input of the pipper 3 through a multiplexer 6 register bits corresponding to the division of the operand in the first register, LI% V -AfcVt by 2 or 2, i.e. 4 l-icg ..... i -t-gsgl 2 H + vvt is carried out. The second input of the adder 3 is fed through the converter 5 with information from the second register 2 in the forward code. At the output of the adder 3, we obtain the values of X according to algorithm 2. The operation of the converter 5, the multiplexers for two 7 and three 6 channels are controlled by the control unit 4. The information from the output of the adder 3 through the multiplexer 7 is transferred to the second register. Now the second register 2 stores the values and the device is ready to be calculated. This is one cycle of operation of the digital smoothing device. Further his work is similar. This digital smoothing device allows you to extend the functionality of the smoothing device, to increase the reliability of the results in the analysis of random pulse signals. Claim 1, a digital smoothing device comprising a first register and a sum torus, the output of the adder being connected to the first input of the first register, the second input of which is the device input, the output of the adder being the output of the device, characterized in that the smoothing accuracy, it contains the second register, the control unit, the first multiplexer, the second multiplexer, and the direct code to additional converter, the device input connected to the control unit input, the first output being connected to the first inputs of the first and second multiplexers, the second output of the control unit is connected to the third input of the first register, the outputs of the nth and fifth bits of the register are connected respectively to the second, third and fourth input of the first multiplexer, the output of which is connected to nepBbfri inlet of the adder, the third output of the block yrt is connected to the first input of the direct code to additional converter, the output of which is connected to the second input of the adder, the output of which is connected to the second input of the second multiplexer, turn coupled to an input .vtorogo register whose output is connected to a third input of the second multiplexer and the second input transducer in the forward supplemental code.

2. The device according to claim 1, which is based on the fact that the control unit contains triggers and an element, and the installation inputs of the triggers are combined and connected to the input of the control unit, the output of the first trigger is connected to the first input of the element I, the output of which is the first output the control unit's home, the direct output of the second trigger is connected to the second input of the AND element and is the second output of the control unit; the inverse output of the second trigger is the third output of the control unit, Information sources taken into account in the examination 1 " USSR author's certificate №406196, to. in 06 F 7/38, 1971. 2, USSR Copyright Certificate IP 356644, cl. in 06 F 7/38 1970 ,. (prototype).

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