SU1429204A1 - Receiving aerial system - Google Patents

Description

(21) 3868983724-09

(22) 03/19/85

(46) 10/07/88. Bul № 37 (72) A.V. Chepurnykh, V.G. Mikhailov, S.I. Vlasenko and V.I. Totovko 453) 621.396.674 (088.8)

(56) USSR Author's Certificate No. 1297144, .cl. H 01 Q 23/00, 1984.

(54) RECEPTION ANTENNA SYSTEM

(57) The invention relates to radio engineering. The purpose of the invention is to increase the spatial selectivity in a changing interference environment by controlling the position of the dips in the radiation pattern. The receiving antenna system (PAS) contains a vertical vibrator 1, mutually orthogonal magnetic antennas (for example, frames) 2 and 3, an adder 10. In the PASS, the multipliers 4, 5, 6, 7, the integrators 8, 9 and the inverter 11 are inserted to reach the target adjustable transfer ratio. The output voltage of the integrators 8 and 9 changes until the voltage at the output of the inverter 11 becomes minimum. With a changing noise situation, the PAS directivity pattern is oriented in such a way as to minimize the total power of the signals in the code, which is equivalent to increasing spatial selectivity. 1 il.

(L

The invention relates to radio engineering and, in particular, can be used in receiving antenna systems (PAS).

The aim of the invention is to increase the spatial selectivity in the event of a changing interference environment by controlling the position of the dips in the radiation pattern.

The drawing shows a block diagram of the PAS,

1IIAC contains a vertical vibrator), the first 2 and second 3 inter-orthogonal vertical magnetic antennas (for example, frames), the first 4, the second 5, the third 6 and the fourth 7 multipliers, the first 8 and the second 9 1-1 integrators, adder 10 and inverter

11 with adjustable transmission ratio.

G1AS works as follows. Induced useful and interfering signals from the vertical vibrator directly, and from inter-orthogonal vertical magnetic antennas

2 and 3 through the first 4 and second 5 multipliers are fed to the input of the adder 10, Then the output voltage through the inverter 11 with an adjustable transmission coefficient through the third

6 and fourth 7 multipliers come to the first 8 and second 9 integrators.

In this case, the output voltage of the integrators 8 and 9 is changed until those liop, until the voltage at the output of the inverter 11 with the adjustable transmission coefficient becomes minimum,

As a result, the transmission coefficients of the first 4 and second 5 multipliers are set such that the total signal power at the PAS output is minimal, t, e, orientation of the dips is provided.

Grams of PAS directivity in the direction of the arrival of interference.

With a changing noise situation, the PAS directivity pattern is oriented in such a way as to minimize the total power of the output signals, which is equivalent to an increase in spatial selectivity.

Claims (1)

Invention Formula Receiving antenna system containing a vertical vibrator, first and second inter-orthogonal vertical magnetic antennas and an adder, the output of which is the output of the receiving antenna system, characterized in that in order to increase the spatial selectivity in a changing interference environment by controlling the position of the dips in the directivity pattern , the first, second, third and fourth transducers were introduced, the first and second integrators and an inverter with an adjustable transmission coefficient, with the outputs the first and second multipliers, and the output of the vertical vibrator are directly connected to the inputs of the adder, the output of which is connected to the first inputs of the third and fourth multipliers, the second inputs of which are connected respectively to the outputs of the first and the second mutually orthogonal vertical magnetic antennas, and the outputs of the third and fourth multipliers through the first and second integrators are connected to orymi inputs of said first and second multipliers respectively.