RU2012133916A - METHOD AND DEVICE FOR DETERMINING COORDINATES OF RADIO EMISSIONS SOURCES - Google Patents

Abstract

1. A method for determining the coordinates of radio emission sources (IRI), including receiving signals in a given frequency band ΔF by a moving meter in space, measuring the primary coordinate information parameters of the detected signals, which are used as the level of the evaluated signals, while measuring and storing secondary parameters: coordinates the location of the meter, multiple (M times, M≥4) repeated measurement of the set of primary and secondary parameters in the process of moving the meter, pos Consistent calculation of M-1 signal level ratios, construction of circular position lines from the calculated M-1 ratios and determination of IRI coordinates at the intersection points of M-1 circular position lines, characterized in that at each m-th measurement point m = 1, 2, ..., M, additionally determine the spatial orientation of the meter and the primary spatial information parameters of the evaluated signals, which are used as the phase difference of the signal in the antenna elements, roughly determine the direction θ of the arrival of the estimated signal relative finally the meter’s side, after which, at each m-th measurement point, the direction of movement of the meter is adjusted until the coordinates of the IRI are determined. A device for determining the coordinates of radio emission sources (IRI), comprising an antenna array made of N> 2 identical antenna elements located in the direction-finding plane, an antenna switch, N inputs of which are connected to the corresponding N outputs of the antenna array, and the signal and reference outputs of the switch are connected respectively to signal and reference inputs

Claims (2)

1. A method for determining the coordinates of radio emission sources (IRI), including receiving signals in a given frequency band ΔF by a moving meter in space, measuring the primary coordinate information parameters of the detected signals, which are used as the level of the evaluated signals, while measuring and storing secondary parameters: coordinates the location of the meter, multiple (M times, M≥4) repeated measurement of the set of primary and secondary parameters in the process of moving the meter, pos Consistent calculation of M-1 signal level ratios, construction of circular position lines from the calculated M-1 ratios and determination of IRI coordinates at the intersection points of M-1 circular position lines, characterized in that at each m-th measurement point m = 1, 2, ..., M, additionally determine the spatial orientation of the meter and the primary spatial information parameters of the evaluated signals, which are used as the phase difference of the signal in the antenna elements, roughly determine the direction θ _{mj of} arrival of the estimated signal relative regarding the side of the meter, after which the direction of movement of the meter is corrected at each m-th measurement point until the coordinates of the IRI are determined. 2. A device for determining the coordinates of radio emission sources (IRI), comprising an antenna array made of N> 2 identical antenna elements located in the direction-finding plane, an antenna switch, N inputs of which are connected to the corresponding N outputs of the antenna array, and the signal and reference outputs of the switch are connected respectively, to the signal and reference inputs of the two-channel receiver, made according to the scheme with common local oscillators, analog-to-digital converter, made two-channel, respectively, with the signal and reference channels, wherein the signal and reference outputs of the intermediate frequency of the two-channel receiver are connected respectively to the signal and reference inputs of an analog-to-digital converter, the Fourier transform unit is made two-channel, respectively, with the signal and reference channels, the signal and reference inputs of which are connected respectively to the signal and reference outputs of the analog-to-digital converter, the first and second storage devices, a subtraction unit, a unit for generating reference values of primary transitive information parameters (PPIP), a PPIP calculation unit, the first information input of which is connected to the signal output of the Fourier transform unit, and the second information input is connected to the reference output of the Fourier transform unit, the first group of information outputs of the PPIP calculation unit is connected to the group of information inputs of the first storage devices, the group of information outputs of which is connected to the group of inputs of the subtracted subtraction block, the group of inputs of which is reduced, which is connected to the group of information outputs of the second storage device, the group of information inputs of which is connected to the group of information outputs of the PPIP reference values generating unit, the group of information inputs of which is the first input installation bus of the IRI coordinate determination device, the multiplier connected in series, the first adder, the third storage device, the azimuth determination unit and elevation angle, and the first and second groups of information inputs of the multiplier are connected bitwise and connected to the group of information ion outputs of the subtraction unit, a clock generator, the output of which is connected to the control input of the antenna switch, synchronization inputs of an analog-to-digital converter, Fourier transform unit, first, second and third storage devices, subtraction unit, multiplier, first adder, azimuth and elevation determination unit , the unit for generating reference values of the PPIP and the block for calculating the PPIP, the first calculator designed to determine the preliminary coordinates of the IRI $$\overrightarrow{V_{Pj}}$$

, the second computer designed to determine the adjusted coordinates of the IRI $$\overrightarrow{V_{\mathrm{At}j}}$$

, the third computer designed to determine the true geocentric coordinates of the IRI $$\overrightarrow{V_{G\mathrm{Ts}j}}$$

, the fourth computer designed to convert the true geocentric coordinates of the IRI $$\overrightarrow{V_{G\mathrm{Ts}j}}$$

to geographic coordinates $$\overrightarrow{V_{Gj}}$$

, a fourth storage device, a radio navigator, a device for angular orientation of a flight-lifting aid (LPS) intended for measuring roll angles k _lpsi , pitch l _lpsi and declination ζ _lpsi LPS, the first, second, third and fourth calculators being connected in series, and the first and the second group of information inputs of the first calculator are connected respectively to the first and second groups of information outputs of the block for determining the azimuth and elevation, the third group of information inputs of the first calculator is connected to the second Uppa information outputs of the radio navigator, the first group of information outputs of which are connected to the second group of information inputs of the third computer and the first group of information inputs of the LPS angular orientation device, the second, third and fourth groups of information inputs of which are the third, fourth and fifth input installation buses of the coordinate determination device IRI, and the group of information outputs of the LPS angular orientation device is connected to the third group of information inputs s of the third computer, the group of information outputs of the fourth storage device is connected to the second group of information inputs of the second computer, and the group of information inputs is the second input installation bus of the device for determining the coordinates of the IRI, the synchronization inputs of the first, second, third and fourth computers are combined and connected to the synchronization inputs of the fourth storage device, LPS angular orientation device and the output of the clock generator, characterized in that Tel'nykh administered fifth calculator for converting geographical coordinates $$\overrightarrow{V_{Gj}}$$

in the azimuthal angle θ _{mj of the} direction to a given IRI, sequentially connected pulse counter, fifth storage device, second adder, divider, comparison unit, sixth storage device, eighth calculator, designed to determine signal level increments at measurement points, seventh calculator, designed to find circles of Apollonia, the sixth calculator, designed to find the primary coordinate information parameters and the statistical processing unit, designed for ut details of the obtained coordinates of the IRI, the group of information outputs of which is the second output bus of the device for determining the coordinates of the IRI, and a control unit, the first group of information inputs of which is connected to the group of information outputs of the fifth calculator and is the first output bus of the device of determining the coordinates of IRI, the second group of information inputs is connected to group of information outputs of the comparison unit, and the output is connected to the control input of the sixth storage device, the second group of information x inputs of which are connected to the third group of outputs of the two-channel receiver, the third group of information inputs is connected to the first group of information outputs of the radio navigator, the second group of inputs of the fifth storage device is connected to the second group of information outputs of the PPIP calculation unit, the second group of information inputs of the comparison unit is the sixth installation bus of the device determining the coordinates of the IRI, the group of information inputs of the fifth computer is connected to the group of information outputs of of that calculator, the counting input of the pulse counter is combined with the synchronization inputs of the fifth and sixth memory devices, the fifth sixth, seventh and eighth calculators, the second adder, the divider, the control unit and the statistical processing unit, and the zeroing output of the pulse counter is connected to the control inputs of the second adder, the divider and a comparison unit.