SU1029096A1 - One-channel radio pulse phase meter - Google Patents

Abstract

SINGLE-CHANNEL RADIOIMG Pulsed Phase Meter, which contains the forming unit whose input is connected to the amplitude detector input, and the outputs to the trigger inputs, the output of which is connected to the counter input through the I element, the second input to which is connected to the output of the large detector and the frequency divider input to the second input. connected to the second input of the AND element and the output j of the time of the first input, whose first input is connected to the first output of the frequency divider I and the second to the output of the jreHepaTopa pulses, which is different from Ignore the functional capabilities, it includes an e-m matching auto-tuning match, a KEY first filter and series-connected packet, a second filter, a control element and a tunable generator, the output of which is connected to the second input of the forming bpo, ka, the input of the first filter is connected to the output the trigger and the output to the first input of the key, the output of which is connected to the input of the memory unit, and the second input i (L with the output of the auto-tuning matched element, the first input of which is connected to the second output of the frequency divider, and swarm - to the output of the amplitude detector.

Description

with

ABOUT

;about

Od

The invention relates to a measurement technique and can be used in radionavigation and radiolocation for the resolution of the phase shift between the high-frequency filling of radio-pulse signals that do not coincide in time | coming through the same channel.

A device for measuring the phase difference of a radio pulse signal is known, its radio pulse signals are converted into continuous signals by means of a radio pulse phase locked loop, followed by a phase indicator measurement containing amplitude detectors, keys, memory devices, control elements, tunable generators

The disadvantages of such a device are the complexity as well as the impossibility of measuring the phase shift between the radio pulses arriving through the same channel.

The closest to the technical essence of the invention is the R. impulse phase meter containing a forming unit, a trigger, a pulse counter, an impulse generator connected to the time by a matching element, the output of which is connected to the coincident quantizing element and the input of a frequency splitter whose output is connected f one of the inputs is the time of the coincidence element, the amplitude detectors connected between the inputs of the signal conditioner, and the time of the delay element of the coincidence element.

However, this device does not provide a measurement of the phase shift between the radio pulse signals that do not coincide in time, coming through the same channel ...

The purpose of the invention is to extend the functional capabilities of the device by providing a measurement of the phase shift between radio pulse signals that arrive non-simultaneously at one channel,

 The set loop is achieved by having a single-channel radio-impedance phase meter containing a shaping unit whose input is connected to the input of an amplitude detector, and the outputs go to trigger inputs whose output is connected to the counter input through an eletlate I, and the second input of which is connected to the output of the amplitude detector the input of the frequency divider, the second input of which is connected "1 to the second input of the element And and the output of the time-determining element, the first input of which

connected to the first output of the frequency divider, and the second to the output of the pulse generator, an element of coincidence auto-tuning, a key, a first filter and a serially connected memory block a second filter, a control element and a tunable generator whose output is connected to the second input of the forming unit of the first filter input is connected to the trigger output, and the output is connected to the first input of the key, the output of which is connected to the memory unit memory, and the second input. with the output of the auto-tuning coincidence element, the first input of which is connected to the second output of the frequency divider, and the second - to the output of the amplitude detector. The drawing shows the block diagram of the radio-pulse phase meter.

The device contains forming unit I and. trigger 2, the output of which through element 3 is connected to the counter 4, the generator of 5 pulses connected to the timing element by the coincidence element 6 of coincidence, the output of which is connected to element 3 and the input of the divider — the frequency whose output is connected to the input of time - master element 6, amplitude The detector 8, whose input is connected to the input of the pulse-type phase meter and to one of the inputs of the forming unit I, the output is connected to a counter 4 and a frequency divider 7, an auto-match element 9, the Kotoporo inputs are connected to the outputs of the amplitude detector

8 and frequency divider 7, element output

9 matching auto-tuning connected

with one of the inputs of the key Yu, the second input of the key 10 is connected to the output of the filter, and the input is connected to the output of the trigger 2, the output of the key tO through the serially connected memory block 12, filter 13, controlled element 14 tunable generator 15, is connected to the second input forming block I.

The measured radio pulse signals are fed to the inputs of the forming unit 1 to the amplitude detector 8. The leading edge of the envelope of the signal from the amplitude detector 8 sets the counter 4 to the zero state and divides 7 frequencies, the first output of which opens the timing element 6 and the second output closes element 9 matching auto-tuning. The second input of the forming unit 1 receives a signal from a tunable generator 15.

From the outputs of the shaping unit I, short pulses produce% to the inputs of trigger 2, at the output of which pulses are formed with a voltage that is proportional to the phase shift between the input signal and the signal of the tunable generator 15. Through element 3 and for the duration of the pulses from trigger 2 with the open time the driver element 6, the pulses from the generator 5 enter the output counter 4. - From the open time of the alternating element 6, the pulses from the generator 5 arrive. also on the ACTUAL 7 of the frequency, ks5 the second time after the measurement time, you bury the time setting element 11, stopping the access of pulses to the counter .4, the information in which is equal to the phase shift of the input radio pulse and the tunable generator 15, Od | At the same time, the signal from the second output of frequency divider 7 opens the auto-tuning element of Eususpadite, which opens the key Yu, the circuit of the auto-tuning circuit. The output pulses of the trigger 2 are received as a low-end phylogy 11, where 1FORCHES a constant is equal to kvdey, the amplitude of which is proportional to the phase shift between the input radio generator vfn G | l of the generated generator Generated voltage alternate public key U, analog memory block 12, fshplr 13..1 the fnc is provided to the control element 14 of the tunable generator 15 by implementing 1 closed self-regulating circuit. .The feedback and oscillation frequency of the tunable generator 15 correspond to the frequency and phase of the high-frequency filling of the radio pulse received at the input of the phase meter. On the falling edge of the signal from the amplitude destructor 8, through the coincidence element 9, the key Yu is disconnected and the analog unit of the 12th memory stores the voltage level that was before it was over the end of the radio phase. Constant voltage, therefore, is applied to the control element 14 of the built-in generator 15, leaving the frequency and phase of its oscillations unchanged during the pause: between the radio signals. Next, the measurement is repeated. Thus, the phase shift recorded in counter 4 is equal to the phase shift of the menad carriers of the previous radio pulse and the radio pulse currently in effect. In a single-channel pulse phase meter, the functionality is expanded by providing measurement of the phase difference between the radio pulses, I-j- .--. f.adad 11CU (J over one channel, which allows to significantly simplify the data transmission path due to the absence of a reference channel.

Claims (1)

A SINGLE-CHANNEL RADIO-PULSE PHASOMETER containing a forming unit., The input of which is connected to the input of the amplitude detector, and the outputs are to the inputs of the trigger, the output of which is connected via the eP®nt And to the input of the counter, the second input of which is connected to the output of the amplitude detector and the input of the frequency divider, the second input of which is connected to the second input of the element AND and the output, the time of the acad of its element ^ the first input of which is connected to the first output of the frequency delimiter, and the second to the output of the pulse generator, which is due to the fact that with chain To expand the functionality, it introduced an auto-tuning coincidence element, a key, a first filter and a memory block connected in series, a second filter, a control element and a tunable generator, the output of which is connected to the second input of the forming block, the input of the first filter is connected to the trigger output, and the output - with the first input of the key, the output of which is connected to the input of the memory unit, and the second input with the output of the coincidence auto-tuning element, the first input of which is connected to the second output of the frequency divider, and the second - with the output of the amplitude detector. P SU „„ 1029096 IS 1 1029096