SU1146812A1 - Superregenerative radio reception device - Google Patents

Abstract

SUPREGENERATIVE RADIO-G, RECEIVER DEVICE, containing N / fOi.i. . t -high-frequency blocks, N superregenerative cascades, a multiphase pulse generator, an adder and a terminal unit, so that, in order to eliminate mutual interference, the superregenerative stage is connected between the output of the adder and the terminal unit, high-frequency blocks made switching, and their outputs are connected to the adder, and the control inputs - to the corresponding outputs of a multiphase pulse generator, while between the output of the full-wave signal of the multi-phase pulse generator and the super input verhregenerativnogo stage (A included integrating tsep.4 0D 00 1

Description

The invention relates to radio engineering and can be used to receive signals on spaced antennas.

A radio receiver with antenna switching is known, which contains 5 switched input paths connected via an adder to a receiver, and the receiver output is connected to control inputs of switched input-paths nj through a control unit.

 However, this device is difficult in its construction, since the definition of the control signal is made on the basis of an analysis of the quality of received information. In addition, it causes interference from transient processes caused by switching paths.

The closest to the technical essence of the invention is a super-regenerative receiving device containing N high-frequency blocks, N super-regenerating cascades, a multiphase pulse generator 25, an adder, and a terminal unit 21.

However, in the known device: mutual interference occurs between its high-frequency reception paths. zo

The purpose of the invention is the elimination of mutual interference to the maysda by the high-frequency paths of the receiver.

The goal is achieved by the fact that in a superregenerative, radio receiving device containing N high-frequency blocks, N super-regenerative cascades, a multiphase pulsed geneTopTop, an adder and a terminal block, the superregenerative cascade is turned on, Q between the output of the adder and the terminal block, the high-frequency blocks are completed switched, their outputs are connected to the adder, and the control inputs to the corresponding outputs of the multiphase pulse generator, while between the output of the sum signal of the multiphase pulse generator supernova inlet torus excess regenerative stage integrating Q included, chain.

The drawing shows a structural electrical circuit of the proposed device.

The ultra-radioactive receiving device 55 comprises antennas 1, high-frequency blocks 2, adder 3, super-regenerative cascade 4, terminal unit 5, integrating circuit 6, and multiphase pulse generator 7.

The device works as follows.

The radio signals received by the antennas 1 are fed to the inputs of the high frequency units 2, which are opened alternately by pulses received from the N outputs of the multiphase pulsed generator. 7. The signals through the adder 3 are then fed to the superregenerative cascade 4. The operation of the superregenerative cascade 4 is effected from the output of the sum signal of the multiphase pulse generator 7 via the integrating circuit 6. The voltage of the sum signal at the output of the multiphase pulse generator 7 is formed by summing the voltages from all the outputs of the logical OR scheme, included in its composition (not shown). In 1}, during the opening of any of the high-frequency blocks 2, a video pulse appears at the input of the integrating circuit 6. Integrating circuit 6 is designed to increase the duration of the leading edge of video pulses, acting on the super input of the superregenerative cascade 4, that is, to delay the start of high frequency oscillations in the superregenerative cascade 4 relative to the leading edge of strobing pulses at the outputs of the multiphase pulse generator 7. Due to this transients in the circuit superregenerative cascade 4, due to the opening of the high frequency blocks 2, ends before the occurrence of a high frequency flash back oscillations, i.e. they do not affect the operation of the superregenerative cascade 4. From the output of the superregenerative cascade, the sum signal is fed to the terminal unit 5, in which the signal detection and low-frequency filtering are performed. one

The frequency of the strobe pulses at the outputs of the multi-phase pulse generator 7 is selected in accordance with the sampling theorem, i.e. more than the highest modulating frequency of not less than 2 times, the duration of the gating pulses and the value of their peak voltage. super input superregenerative

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The cascade is selected taking into account the possibility of adding the signalistics of the superregenerative cascade. lov.v superregenerative yum cascade

Thus, alternating from pre-phasing the opening of high-frequency blocks, under- and eliminates the mutual influence of high-frequency to different antennas, frequency-free blocks.

Claims (1)

SUPERREGERATIVE RADIO, RECEIVER, containing N high-frequency blocks, N super-regenerative cascades, a multiphase pulse generator, an adder and a terminal block, with the exception that, in order to avoid mutual interference, the super-regenerative cascade is turned on between the output of the adder and the terminal block, the high-frequency blocks are made switched, and their outputs are connected to the adder, and the control inputs are to the corresponding outputs of the multiphase pulse generator, while there are many between the output of the total signal Phase pulse generator and supernova superregenerative input stage integrating circuit is enabled. · 1146812 2