SU853605A1 - Non-linear filtering device - Google Patents

Description

(54) NONLINEAR FILTERING EQUIPMENT The invention relates to radio engineering and can be used in electrical measuring equipment, radio engineering installations and in other areas of technology where effective separation of useful signals is required in the presence of interference. A nonlinear filtering device is known that contains a first adder connected in series, the input of which is the device input, a nonlinear vein and a second adder, and an inertial element is connected between the device input and the combined other inputs of the first and second adders (1.) accuracy of operation with varying noise level. The purpose of the invention is to increase the throat. For this, in a known device, between the output of the first adder and the control input of the links are connected in series to the module and the null organ, and the electronic link is a key. The drawing shows the structural electrical diagram of the proposed device. The nonlinear filter device contains an inertial link 1, a linear link 2 in the form of a key, adders 3,4 , null-orgai 5 and module 6 definition of the module.The device works as follows: The useful input signal, blocked by interference, is fed to the input of the output signal 1 and to the summing inlet of the adder 3. To the subtracting input of this sum The signal comes from an inertia-free star 1. The output signal from adder 3 is fed to the input of a non-linear star 2. For a general filtering efficiency, it is passed around so that the OUTPUT signal of a non-linear star 2 when the useful utility is equal to the value of the signal. Then the signal at the output of the adder 4 will correspond to the field "at the sigal. In order to fulfill this condition of the magnitude of the output signal module, the cyclone 3 is determined by block 6. When it reaches the output. signal block 6 close to zero

values zero-organ 5 opens a non-linear link 2.

Thus, the addition of new elements) gullifies the statistical and dynamic accuracy of the device. As a result, interference filtering efficiency increases, which significantly expands the field of application of the device.

Formula and

A nonlinear filtering device comprising a first adder connected in series, the input of which is the input of the device, a nonlinear link and a second

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an adder, wherein an inertial link is connected between the input of the device and the combined other inputs of the first and second adders, characterized in that, with increasing accuracy, between the output of the first adder and the control input of the nonlinear link are connected the serially connected module for determining the module and null organ, and the nonlinear link is executed in the form of a key.

Sources of information taken into account in the examination. USSR Author's Certificate in Application No. 2633732 / 18-09, cl. G 05 B 5/01, 21.12,79 (prototype).

Claims (1)

Claim A nonlinear filtering device comprising a first adder connected in series, the input of which is the input of the device, a nonlinear link and a second 853605 4 adder, and between the input of the device and the combined other inputs of the first and second adders included an inertial link, characterized in that, ₅ with the aim of increasing accuracy, between the output of the first adder and the control input of the nonlinear link are connected in series to the module definition block and the zero organ, and the nonlinear link is made in the form of a Yu key.