SU1319294A2 - Device for checking multichannel radio line - Google Patents

Abstract

The invention relates to radio and provides improved control accuracy by determining the working capacity of a multi-channel radio link. The device contains a compaction block 1, r-2 pilot signals, an adder 3, a transmitter 4, a receiver 5, an information processing block 6. signals, filter 7 pilot signal, detector 8, threshold unit 9, indicator U, pseudo-random sensors 11 and 15, modulator 12, synchronization unit 13, inverter 14, key block 16, integrator 17. Reinstalled on the receiving side controlled by Mr. 18 pulses, integrator 19, key 20, meter 21, indicator 22. A pilot signal is generated on the transmitting side, representing the pseudo-random sequence of the And transmitter, modulated by the frequency of the pilot signal, which is radiated together with the useful signal by the transmitter 4. On indica Ore 22 displayed value of the control signal reserve energy that characterizes the performance of multichannel radio link margin. 1 il. O) CA5 SO go with NJ

Description

The invention relates to radio, can be used to monitor the working ability of radio relay and troposphere stations without disturbing the useful signal and is an enhancement of the invention according to the author. St. No. 1072276.

The purpose of the invention is to improve the control accuracy by determining the Stock of Work- Tocnoco6i} qcT-ri multi-channel radio link.

The drawing shows a structural electrical circuit; a device.

A device for controlling a multichannel radio link contains a compaction block 1 generator 2 IlilQт - cj onal, -summer 3, transmitter 4, -receiver 5, information signal processing unit 6, pilot filter filter 7, detector 8, threshold unit 9, first indicator 10, first pseudo-random sequence sensor 11, modulator 12, synchronization unit 13, inverter 14, second pseudo-random sequence sensor 15, key block 16, first integrator 17, controlled pulse generator 18, second integrator 19, key 20, meter 21 and the second indicator 22.

The device works in the following way.

A pilot signal is generated on the transmitting side, representing a pseudo-random sequence from the sensor I. The frequency modulated pilot signal, which is radiated together with the useful signal by transmitter 4. At the receiving side 1i; 1o-signal is extracted by filter 7, detected by detector 8 and inverted the inverter 14 distorted pseudo-random sequence is fed to the input of the key block 16, the other inputs of which are a distorted pseudo-random sequence from the output of the sensor 15. The total c The output from the key block 16 is fed to the integrator 17 and further to the threshold block 9. With the channel quality pa the output of the threshold block 9, there is a positive voltage signal recorded by the indicator m 10, which, in addition, closes the key 20 and does not arrive to the control inputs of the sensor 15 and the controlled generator 18 pulses. The sensor 15 generates a pulse sequence, and the pulse duration of this sequence decreases linearly. At the same time, the controlled pulse generator 18 generates pulses, the duration of which corresponds to the duration by which the sensor pulses are reduced, 15. The triggering of the sensor 15 and the controlled generator 18 and m pulses is synchronized using the synchronization unit 13. The output of the controlled oscillator 18 is fed to the input of the second integrator 19, where it is integrated. Since the key 20 is closed, the signal from the output of the second integrator 19 to the input of the meter 21 is not received. This process takes place until the signal from the first integrator 17 is below the threshold of the threshold unit 9. In this case, the signal of the positive voltage disappears at the output of the threshold unit 9. The key 20 is opened and the signal from the output of the second integrator 19 is fed to the input of the meter 21 and is registered by the indicator 22. In addition, the signal from the output of the threshold unit 9 returns to

5, the initial state of the sensor 15 and the controlled generator 18. The indicator 22 displays the amount of energy of the pilot signal, which characterizes the health of the multichannel radio link.

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Claims (1)

Invention Formula Device for controlling a multi-channel radio link St. No. 1072276, characterized in that, in order to increase the control accuracy by defining the multi-channel radiirrgy health margin, a serially connected controlled pulse generator, a second integrator, a key, a meter and a second indicator are inserted on the receiving side, the first inputs of the controlled the pulse generator, the second pseudo-random sequence sensor, the key and the meter are connected to the output of the threshold unit. five