SU708517A1 - Radiometer of multielement correlation interferometer - Google Patents

Description

directly connected to the output of the low-frequency generator, and connected to the second input of the second synchronous detector through the phase shifter, and the output of the high-frequency generator connected to the input of the third modulator directly, and connected to the input of the first synchronous detector through the second phase shifter and the second selective amplifier series-connected filter tuned to the total frequency, an additional adder and a mixer, and between the detector output and the second input of the additional ummatora included filter tuned to the difference frequency.

The drawing shows a structural electrical circuit of a pre-conditioned radiometer.

The radiometer of a multi-element correlation interferometer contains antenna 1, modulators 2-4, adder 5., high frequency amplifier 6 (UHF), detector 7, selective amplifier (IC) 8, synchronous detector (SD) 9, integrating filter (IF ) 1O, total frequency filter 11, frequency ratio filter 12, adder 13, mixer 14, selective amplifier (DOW) 15, synchronous detector (SD) 16, integrating filter (IF) 17, high frequency generator 18, phase shifter 19, low generator 20 frequency, phase: å 21, The device works as follows.

from the two arms of antenna 1, the signal under study is fed to the input of modulators 2, 3, where it is modulated by the frequency SI, then from one arm enters one of the inputs of the adder 5. The signal from the other shoulder is further modulated in the modulator 4 by frequency F and also the second input of the adder 5. In the adder there is a phase-antiphase addition of signals at the frequency F, taken from two, the arms of the interferometer antenna

Thus, the resultant interferometer radiation pattern is generated at frequency F. Then the signal goes to the UHF 6 input and then to the detector 7 input. At the output of the detector 7, the components f, Si, (F ± 2 fil), (F 1 L), (rR ± L, etc.) appear. However, now in PS 8 of frequency F there is an amplification of the component of frequency F, since its emission band provides the required suppression of parasitic products. Further, the component of frequency F is fed to the input of LED 9, which, together with IF 10, generator 18 and phase shifter 19 performs the final separation of the frequency F from the unmodulated noise.

Frequency components (F ± 51) pass through filters 11, 12 and component amps of SI frequencies, (F ± 2SI), etc. filtered out. Next, the frequencies (F t SI) are fed to the adder 13, then to the common input of the mixer 14 frequencies, which together with the generator 18

transfers them to the SI frequency. Frequency is again allocated I., is amplified by PS 15 and is fed to the input of DM 1. Here, together with IF 17, generator 20 and phase detector 21,

final frequency separation of noise from noise.

The technical and economic efficiency of the multi-element correlating device of the X-ray interferometer adiometer consists in improving the registration accuracy of polarization and non-polarization radio emission.

Claims (1)

Invention Formula A radiometer of a multi-element correlation interferometer containing a series-connected adder, 5 one input of which is connected to the antenna through the first modulator, and the other through a series-connected second and third modulators, a high-frequency amplifier, a detector, a first selective amplifier, a first synchronous detector and a first integrating filter, and a second selective amplifier , the second synchronous detector and the second integrating a filter, the reference inputs of the first and second modulators are connected directly to the output of the low-frequency generator, and to the second input of the second synchronous detector via a phase shifter, and the output of the high-frequency generator is connected to the input of the third modulator directly, and to the input of the first synchronous detector An detector, characterized in that, in order to increase the registration accuracy of polarization and non-polarization radio emission, between the detector output and the secondary input 5708517 go selective amplifier included a filter tuned to a differential series filter, frequency, tuned to cumulative frequency, pre-sources of information, additional adder and mixer, taken into account during the examination and between the output of the detector and the second 5- Lime universities Radiophysics, input adder VELU1973, t. 12, p. 1884 (prototype).