SU953589A2 - Radio pulse phase meter - Google Patents

Description

(54) RLDA impulse phase meter

one

Isophilation is referred to as radio measurement and can be used in phasometric radionavigation systems.

According to the main author. St. No. 587412 A method for measuring the phase shift and a device for its implementation are known, comprising a shaping device, a trigger, a pulse counter, a pulse generator connected to the timing by a matching element, the output of which is connected to the quantizing matching element and the input of a frequency splitter whose output is connected to one of the inputs specify the time, its element of coincidence, and two amplitude detectors connected by its inputs to the device input, and the inputs to the inputs of the time of the matching element l.

The known device cannot operate when measuring the phase shift between radio pulse signals that do not coincide in time, since the time specifying the coincidence element skips

the counting pulses from the generator to the frequency divider, the coincidence spinning element, the pulse counter, only with the simultaneous presence of the radioim

, pulses at the inputs of phase meters.

The purpose of the invention is to expand the functionality of the device by providing a measurement of the phase shift between the radio pulses, Q lamas, separated in time.

The delivered circuit is achieved in that the device containing the signal conditioner, a trigger, whose inputs are connected to the output of the signal conditioner, amplitude detectors (first and second) connected to the inputs of the device, a quantizing coincidence element, the inputs of which are connected to the trigger output and output time specifying a coincidence element, whose inputs are connected to the first amplitude detector, generator and cases: 1 frequency clock, whose input is connected with the output;

j j ibcoB, coincident with the output of the quantized element by coincidence, dsogash Tejtt Ho phase detector is introduced ,. The inputs of which are connected to the radio phase phase meter and a controlled oscillator, the pulses from which are fed to the input of the signal conditioner, the output of the phase detector through the serially connected key, memory device, filter and control unit connected to the input of the controlled oscillator, and A control key input is connected via an amplitude detector to a phase meter input.

The drawing shows a structural diagram of the proposed device.

Radio pulse phase meter contains driver 1 of signals, trigger 2, the inputs of which are connected to the output of the pilot of one of the sensors, amplitude detectors 3 and 4 connected to the inputs of the device, the quantizing element 5 coincides, the inputs of which are connected to the output of the router 2 and the output of the time of the setting element 6 of the dropout } whose inputs are connected to an amplitude detector 3, a generator 7 and a frequency divider 8, the input of which is connected to the output of element 6, a pulse counter 9 connected to the output of element 5, and a phase detector 10, one input The second input is connected to the input of the device, and the other input is connected to the output of the controlled oscillator 11, the output of the detector 1О via the key 12, memorizing memory 13, fjff 14, the control element 15 is connected with the detector 11, the amplitude detector 16, its output connected to the second The entrance is Cha 12.

Radio pulse signals that do not coincide in time, are fed to the inputs of a happy phase meter. The phase detector 10 compares the carrier frequency of the radio pulses and the signal of the generator 11. The output voltage of the phase detector through the key 12, the analog storage device 13, the filter 14 acts on the control element 15, adjusting the generator 11 to the frequency and phase of the carrier oscillation of the measured radio pulse.

At the end of the radio pulse, the switch 12 times the lpfets signal of the amplitude detector 16 and the storage device 13 stores the level of voltage that was applied to it during the operation of the radius Ivfflynca. Therefore, the frequency and phase of the output oscillation

My generator remains in a pause j junction.

At one of the inputs of the signal conditioner receives a continuous oscillator generator 11; whose frequency and phase coincide with the frequency and phase of the carrier oscillation of the reference radio pulse, and the radio signal, phase shift (KOTOpoiX) relative to the reference

The signal needs to be measured.

Short pulses, obtained by limiting and differentiating from the PS of the signal maker 1, are fed to the inputs of the trigger 2, which forms

Pulses whose duration is proportional to the phase shift. The output pulses of trigger 2 are filled with counting pulses received from generator 7. These pulses are passed through

elements 5 and 6 matches and counts. pulse counter 9 for a constant measuring time, determined by the division factor of the frequency divider 8.

Thus, the introduction of additional elements into the known device provides a measure of the phase shift between the separation in time of the radio pulses.

Claims (1)

1. USSR author's certificate N8 587412, cell / a O1 R 25/00, 1978. Vhg